Head-worn Loupe KS

Transcription

Head-worn Loupe KS

Kapitel_A_20-696_ENG.qxd
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Seite 1
Foreword
Good vision – with or without an optical aid – is now
becoming more and more important in our everyday
lives, regardless of whether we are at work or enjoying
a hobby in our leisure time. However, there are certain
tasks or degrees of visual deficiency which demand
special solutions beyond the capabilities of such traditional visual aids as spectacles or contact lenses.
Carl Zeiss Vision has been involved in the field of
“Special Visual Aids” for several decades now. In 1908
the company presented the first telescopic spectacles
for severely short-sighted wearers which Moritz von
Rohr had designed on the basis of Gullstrand‘s theory
of image formation. This was followed by a large
number of innovative magnifying visual aids.
Today, Carl Zeiss Vision offers an extensive range of
magnifying visual devices. The information provided in
the catalogue is intended to assist you in your practical
work. In the blue section the products are presented
with their technical and optical data. Prices are given
in the green section.
In every magnifying visual aid which the company produces, Carl Zeiss Vision attaches top priority to providing
the wearer with a product which is precisely tailored
to meet the needs of the task or situation concerned or,
in the case of low vision aids for people with severe
visual handicaps, with a product which ensures that
maximum visual performance is achieved. This means:
outstanding image quality and a large field of view at
the same time. Often the lowest possible magnification
will then suffice.
Certification to ISO 9000 testifies to the high standard
of quality achieved by Carl Zeiss Vision – from product
development to customer care. This includes a wide
range of seminars and courses, in which the prescription and fitting of magnifying optical aids are
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explained.
The information contained in this catalogue is intended
to assist you in your everyday work. Each section includes a general introduction to the products available
from Carl Zeiss Vision. Technical and optical information is given in the description of the product involved.
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Products
Contents
Magnifiers and Loupes
A
Low Vision Devices
B
Magnifying Visual Devices for Professional Users
C
Fitting Devices
D
Special Filter Lenses
E
Tips, Info and Ordering
F
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Products
Contents
Magnifiers and Loupes from Carl Zeiss Vision
A
Background Information
A1
Aplanatic-achromatic Pocket Magnifiers
A3
VisuLook classic (Aspheric Hand Magnifiers)
A5
Head-worn Loupe L
A7
Head-worn Loupe LC
A9
VisuLook Style (Hand Magnifers)
A11
VisuLight M (Illuminated Pocket Magnifiers) A13
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VisuLight S (Illuminated Stand Magnifiers)
A15
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Optimum matching of refracting
power and diameter
The size of the field of view is of decisive importance
for the practical benefits offered by a visual aid. If
possible, the user must be able to see his entire field of
action. In the magnifiers produced by Carl Zeiss Vision,
the optically effective diameter of each magnifier is
optimally adapted to its refracting power.
Image quality
Uncompromising image quality is essential if all details
are to recognized and the magnification is not to be
unnecessarily high. The use of the aid is also considerably simplified, as the size of the field of view, the
depth of focus and working distances all remain comfortable for the wearer.
The optics of the hand magnifiers are aspherically
designed and, with full utilization of the magnifying
power, provide optimum image quality. The pocket
magnifiers are multilens systems which guarantee a
distortion-free image with no chromatic aberrations.
Aspheric hand magnifiers with
hard protective and multilayer
AR coatings
The lenses of the aspheric hand magnifiers are made of
the material PMMA. To protect the surfaces against
mechanical damage, they are always delivered with a
hard protective coating. The additional broadband
antireflection coating ensures maximum reduction of
reflections. This is available for the VisuLook classic
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hand magnifiers.
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Backround Information
Antireflection coating for
pocket magnifiers
The lenses of the pocket magnifiers are made of a glass
material. Surface reflections are substantially reduced
by the standard antireflection coating.
Practical labelling
The magnification of a magnifier is dependent on various factors present during use, including the using
distances (distance between the magnifier and the eye,
and that between the magnifier and the object). All
magnifiers from Carl Zeiss Vision are therefore labelled
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with their refracting power.
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Aplanatic-achromatic
Pocket Magnifiers
Aplanatic-achromatic pocket magnifiers from Carl Zeiss
Vision are indispensable aids for many tasks – particularly in industry, research and the skilled trades –
where precise vision is of the essence. Their small
dimensions also make them useful for persons with
severe visual handicaps, e.g. for use when out and
about.
The aplanatic-achromatic pocket magnifiers are labelled with their refracting power (D), which can be used
to calculate the respective magnification on the basis
of the conditions of use.
These magnifiers provide a distortion-free image
without chromatic aberration over the entire field of
view. The product range includes the refracting powers
24 D and 40 D, and a double pocket magnifier 12 D +
24 D = 36 D.
The lenses come standard with an antireflection
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coating.
Valid from January 1, 2009, Subject to change
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Aplanatic-achromatic
Pocket Magnifiers
Technical data
Refracting (D)
Magnification
Optically
Optimum conditions of use
power
for reference
effective
Using distance
distance of
diameter
Field of view
0.25 m
(D/4)
24 D
6x
22 mm
35 mm
10 mm
52 mm
40 D
10x
13 mm
20 mm
10 mm
22 mm
22 mm
25/35/80 mm
10 mm
32/52/127 mm
36 D
9x = 6x + 3x
A4
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= 24 D +12 D
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VisuLook classic
Aspheric Hand Magnifiers
Hand magnifiers facilitate many of the tasks we
perform at work and in our private lives that require
detailed, precise vision. The “VisuLook classic” product
line from Carl Zeiss Vision contains five hand magnifiers featuring a classic design.
Image quality and distortion – with utilization of the
highest possible magnification – have been optimized
so that no aberrations of any consequence occur.
The hand magnifiers are labelled with their refracting
power (D), which can be used to calculate the magnification on the basis of the conditions of use.
The hand magnifiers come standard with a hard
protective coating. A Super ET antreflection coating
can additionally be chosen. Every magnifier is supplied
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with a matching case.
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VisuLook classic
Technical data
Refracting (D)
Magnification
Optically
Optimum conditions of use
power
for reference
effective
Using distance
distance of
diameter
Magnifi-
Field of
cation
view
0.25 m
6D
1.5x
100 mm
145 mm
185 mm
2.1 x
90 mm
8D
2 x
85 mm
110 mm
220 mm
2.7 x
50 mm
12 D
3 x
70 mm
70 mm
210 mm
3.5 x
30 mm
16 D
4 x
60 mm
55 mm
130 mm
3.25x
30 mm
20 D
5 x
55 mm
40 mm
90 mm
3.1 x
28 mm
A6
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(D/4)
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Head-worn Loupe L
Head-worn loupe with binocular loupe component
for stereoscopic near vision, also suitable for spectacle
wearers.
The Head-worn Loupe L is suitable for situations where
low magnifications are sufficient. The user's hands
remain free to perform whatever task is required. The vertically adjustable visor with lateral shielding prevents
stray light from impairing the wearer's vision and can be
easily swung out of the field of view, if required.
To enhance wearing comfort, the headband is fitted with
an exchangeable textile pad. A spare pad is included with
the loupe on delivery. The elastic rear headband can be
set to whatever length is needed.
The Head-worn Loupe L is available with the powers
4 D or 6 D. The binocular loupe components are easy
to change and can also be used on the Head-worn
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Loupe LC.
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Head-worn Loupe L
Technical data
Refracting (D)
Optically
Conditions of use
power
effective
Using distance
Magnification
diameter
Binocular
field of view
(R/L each)
4D
40 x 30 mm
200 mm
60 mm
1.25 x
83 x 100 mm
6D
40 x 30 mm
140 mm
60 mm
1.4 x
72 x 75 mm
A8
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Weight: approx. 110 g
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Head-worn Loupe LC
Loupe clip with binocular loupe component for stereoscopic near vision, for attachment to most prescription
glasses.
The Head-worn Loupe LC is suitable for situations
requiring a low magnification. The user's hands remain
free to perform whatever task is required.
Angled gripping surfaces make it easy for the user to
attach the clip without having to remove his glasses.
Non-slip caps on the peg prevent scratching of
spectacle lenses. The height and tilt of the loupe
components can be set as required.
The Head-worn Loupe LC is supplied in a plastic box
and is available with the powers 4 D or 6 D. The binocular loupe components are easy to change and can
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also be used on the Head-worn Loupe L.
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Head-worn Loupe LC
Technical data
Refracting (D)
Optically
Conditions of use
power
effective
Using distance
Magnification
diameter
Binocular
field of view
(R/L each)
4D
40 x 30 mm
200 mm
60 mm
1.25 x
83 x 100 mm
6D
40 x 30 mm
140 mm
60 mm
1.4 x
72 x 75 mm
A10
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Weight: approx. 20 g
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VisuLook Style
Many of the tasks we perform in our daily work or
hobbies require precise, detailed vision. This is often
made easier by the use of hand magnifiers.
The “VisuLook style” product line from Carl Zeiss Vision
contains three hand magnifiers featuring a modern
design.
The magnifiers are graded according to their dioptric
power. Their aspheric optics are adapted to the
respective conditions of use. The hand magnifiers
image the viewed object at a distance of 40 cm from
the eye (position of the virtual image). This allows
the image to be clearly seen with the normal near
correction.
The hand magnifiers come standard with a hard
protective coating.
The end of the magnifier handle features a pull-out
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eyelet through which a neck cord can be threaded.
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VisuLook Style
Technical Data
Product name
Refracting
Lens size
power (D)
Magnification
Optimum using distances
at
reference distance
0.25 m (D/4)
Text – Magnifier
Magnifier – Eye
D 8H
8.0 D
100 x 50 mm
2.0 x
60 mm
250 mm
D 10 H
10.0 D
75 x 50 mm
2.5 x
60 mm
200 mm
D 16 H
16.0 D
4.0 x
45 mm
150 mm
l 70 mm
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products will be discontinued,
availability on request
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VisuLight M
Illuminated Pocket Magnifiers
Illuminated magnifiers are used for applications in
which magnification and illumination are required in
combination. The use of the right illumination allows
considerable reduction of the magnification needed.
The VisuLight M illuminated pocket magnifiers are
intended primarily for fast use in the home environment: short-time reading of small print, looking for
telephone numbers, etc. And they are also the perfect
companions for use as a reading aid when you are
out and about.
powers. Their aspheric optics are adapted to the
respective conditions of use. The illuminated pocket
magnifiers image the viewed object at a distance of
40 cm from the eye (position of the virtual image).
This means the image can be clearly seen with the
normal near correction.
The lenses of the VisuLight M come standard with
a hard protective coating.
The illumination is provided via LED illumination,
whose life cycle is so long that there is no need
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to change the LED.
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VisuLight M
Illuminated Pocket Magnifiers
Technical Data
Product name
Refracting
Lens diameter
power (D)
Magnification
at
reference distance
0.25 m (D/4)
Text – Magnifier
Magnifier – Eye
D 12 H
12.0 D
l 60 mm
3.0 x
50 mm
250 mm
D 16 H
16.0 D
l 60 mm
4.0 x
60 mm
100 mm
D 20 H
20.0 D
l 58 mm
5.0 x
35 mm
140 mm
product will be discontinued,
abvailability on request
Power supply:
2 batteries of the type 1.5 V AA (included on delivery)
or 2 rechargeable batteries (not included on delivery).
Battery change:
Battery compartment can be opened by using a
separate switch on the bottom of the instrument.
White light LED, 52 mA.
Weight (without batteries):
A14
approx. 72 g
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Illumination:
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VisuLight S
Illuminated Stand Magnifiers
Illuminated magnifiers are used for applications in
which magnification and illumination are required in
combination. The use of the right illumination allows
considerable reduction of the magnification needed.
The VisuLight S illuminated stand magnifiers are
intended primarily for home use. The magnifier lies
on top of the reading material, making it suitable for
long periods of use. Illuminated stand magnifiers are
particularly beneficial for users who cannot hold the
magnifier steady due to hand tremor.
powers. Their aspheric optics are adapted to the
respective conditions of use. The illuminated stand
magnifiers image the viewed object at a distance of
40 cm from the eye (position of the virtual image). This
means the image can be clearly seen with the normal
near correction.
The lenses of VisuLight S come standard with a hard
protective coating. The illumination is provided via
LED illumination, whose life cycle is so long that there
is no need to change the LED.
The VisuLight S D 8 H – with a rectangular lens frame
– features an additional, swing-in magnification of 4 D
for reading small print. In the VisuLight S D 12 H and D
16 H a reading line can be swung into position, allow-
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ing easier line orientation within the text.
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VisuLight S
Illuminated Stand Magnifiers
Technical Data
Product name
Refracting
Lens
Magnification
power (D)
size
distance
at
reference distance
0.25 m (D/4)
Magnifier – Eye
D 8H
8.0 D
100 x 50 mm
2.0 x
250 mm
D 12 H
12.0 D
l 80 mm
3.0 x
250 mm
D 16 H
16.0 D
l 70 mm
4.0 x
150 mm
product will be discontinued,
Power supply:
2 batteries of the type Baby 1.5 V (not included on
delivery) or 2 rechargeable batteries (not included
on delivery).
Battery change:
Via screw-off end cap on the magnifier handle.
2 white LEDs, 123 mA.
Weight (without batteries):
A16
approx. 210 g
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Illumination:
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Products
Contents
Low Vision Devices from Carl Zeiss Vision
B
B1
Magnifying Bifocal S 25
B7
Magnifying Bifocal R 22
B9
B11
Telescopic Spectacles G 1.8
B13
B15
Telescopic Spectacles K 4
B17
Telescopic Spectacles K 4 vario
B19
Telescopic Spectacles K 4 bino
B21
Teleloupe Spectacles K bino
B23
System Carrier STMS™
B25
B
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System Carriers for Magnifying Visual Devices B27
Hand Telescopes
B29
Magnifying Eyeglasses Concept bino ET
B31
sold out
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Magnifying Bifocals S 25,
R 22 and R 20
Magnifying spectacles are glasses with lenses which
display a high positive refracting power. The higher the
dioptric power, the smaller the working distance becomes. Magnifying bifocals from Carl Zeiss Vision allow
the wearer to perform work and read at close range by
looking through the magnifying portion. The distance
portion is used for orientation in the surrounding area.
The correction of the wearer's ametropia is effective in
both the base lens and the magnifying portion (except
for Magnifying Bifocal R 20).
Telescopic Spectacles,
Teleloupe Spectacles
Telescopic spectacles are used to recognize objects
outside the zone of near vision. They are available in
both Galilean and Kepler designs. Kepler systems allow
higher magnifications; Galilean systems permit a more
compact design.
The attachment of a loupe turns telescopic spectacles
into “teleloupe” spectacles for use in near vision. The
benefit of teleloupe spectacles over magnifying spectacles is their markedly larger working distance in the
near range.
Optimized fields of view
The size of the field of view is decisive for the practical
usefulness of the visual aid. Large angular fields improve, for example, the flow of reading and reduce, or
prevent, the head movements otherwise required for
watching TV, for example. Telescopic spectacles from
Carl Zeiss Vision therefore provide a maximum field
of view tailored to meet the needs of the situation
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involved.
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Image quality
The high image quality of the telescopic systems
from Carl Zeiss Vision is essential for ensuring that
the lowest possible magnification can be used. This
markedly simplifies the handling of the system, as
the size of the field of view, the depth of focus and the
working distances remain comfortable for the wearer.
System-inherent correction
To ensure that the wearer's remaining visual acuity can
be optimally utilized, any existing ametropia must be
corrected. At Carl Zeiss Vision, this correction is performed by the individually matched combination of the
optical components inside the telescope. The corneal
vertex distance therefore remains constant. This has
two benefits:
1. The components inside the telescope which correct
ametropia are optimally matched to the system
optics in the optical computation.
2. The corneal vertex distance is identical for emmetropes and ametropes, as no additional components are
attached to the ocular on the side nearer to the eye.
This is the only way of ensuring that the position of
the exit pupil of the telescope and that of the entrance pupil of the eye coincide in every fitting.
Unlike a corrective spectacle lens mounted on the
ocular side, the system-inherent correction of ametropia influences neither image quality nor the size of
the field of view. The Rx powers can be changed to
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meet the needs of each individual patient at any time.
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Modular design
Generally, a telescope for an LVA patient must be
focused at a finite distance, e.g. the customary distance
between the wearer and a TV set. This is perfomed by
Carl Zeiss Vision to your specifications. An additional
clip-on lens is not required, therefore simplifying the
use of the system. If the requirements change, the
focusing system can be changed by Carl Zeiss Vision at
any time.
Usable for far and near
Clip-on lenses turn telescopic spectacles into teleloupe
spectacles. This makes the telescope systems very
flexible for use in the distance, intermediate and near
ranges.
Light-coloured housing
Telescope systems with light-coloured housings are
less conspicuous for the patient during use and are
therefore more pleasant to wear. The cosmetic benefit
of the bright colour also helps to increase wearer
acceptance.
Bridge
Telescopic spectacles must be very carefully centred. In
binocular systems, the optical axes must be exactly
aligned with each other to guarantee perfect fusion of
monocular images. Carl Zeiss Vision therefore fits
Kepler-type binocular telescope and teleloupe systems
with fixed bridge connections. However, this is not
done until the systems have been exactly adjusted and
aligned on an optical bench. This permanent alignment
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also withstands external mechanical influences (shock
or distortion of front of frame).
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Centration data
The image quality and field of view of a telescope
system can only be fully utilized if it has been
correctly positioned relative to the eye. Two basic
centration requirements must therefore be met:
• the ”centre-of-rotation“ requirement
• the correct position of the apertures
(exit pupil of system/entrance pupil of wearer).
Centre-of-rotation requirement
The optical axis of the telescope system and the line of
fixation of the eye must correspond in the principal
visual direction. Carl Zeiss Vision mounts the telescope
systems perpendicularly to the frame plane. The front
of the system carrier must therefore be inclined perpendicularly to the principal visual direction (Figs. 1
and 2).
Fig. 1
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Fig. 2
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If the ideal inclination is not possible for anatomical or
other reasons, the alternative is telescopic spectacles
with inclinable optics (not possible with Telescopic
Spectacles G 1.8 for mechanical reasons). In this case,
the telescope system is fitted with an ocular ring which
is rounded on the outside. This allows the system to be
inclined as required in the drilled hole of the carrier
lens and then locked in position with appropriate adhesives after the ideal inclination has been determined.
The eye's line of fixation and the system axis must cor-
Fig. 3
respond, irrespective of the forward tilt of the system
carrier (Figs. 3 and 4).
Correct position of the apertures
The position of the exit pupil of the telescope must be
congruent with the entrance pupil of the eye. The corneal vertex distance between the ocular and the eye
must not be dependent on the fitting of the system carrier. The mounting height in the carrier lens is therefore adapted by Carl Zeiss Vision to the corneal vertex
distance given in the order. This, along with the systeminherent correction, guarantees that the two important
Fig. 4
apertures are congruent (Fig. 5).
APSystem
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EPEye
Fig. 5
APSystem = EPEye
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Order data
Carl Zeiss Vision requires the following data for the
production of telescopic or teleloupe spectacles:
1. Position of principal visual point (centration in
accordance with the centre-of-rotation requirement)
1.1 PD for distance vision (also required for binocular
systems used for near vision, as the nasal inset for
near vision is calculated by Carl Zeiss Vision in each
case)
1.2 Viewing height
2. Corneal vertex distance: corneal vertex – lens vertex on object side
3. Distance correction
4. Using distance for far (not required for Telescopic
Spectacles K 4 vario or for binocular systems for
near vision).
Production
Special tools and devices are required to complete,
align and insert the telescope systems. This is why this
work is performed at Carl Zeiss Vision in line with the
data you have specified in your order. The telescope
systems are inserted in plano carrier lenses made of
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CR 39, in which the appropriate hole has been drilled.
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A glass bifocal consisting of a base lens featuring the
distance correction, with a magnifying segment cemented onto its back surface. The correction of the wearer’s
ametropia is therefore also effective in the magnifying
portion. The distance portion is used for orientation
purposes, while the magnifying portion allows the
≤70
recognition of detail in the near range and the reading
of standard print sizes.
Due to the short working distances, only monocular use
is generally possible. The magnifying portion is centred
it can be nasally inset on request. The magnifying por-
2
under the major reference point for distance vision, but
The magnifications 1.5x and 2x can also be used bino-
17
tion or the whole of the partner lens is occluded.
cularly. The magnifying portions are then produced
with convergence-relieving prisms and are nasally inset
relative to the optical centre of the distance portion.
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25
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Technical data
(for correction 0.0 D)
17
2
≤70
25
Dioptric power of
Working distance
(D/4)
magnifying portion
measured from the eye
1.5 x
6D
175 mm
123 mm
2
x
8D
140 mm
104 mm
3
x
12 D
100 mm
74 mm
4
x
16 D
75 mm
53 mm
B8
Field of view
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Magnification
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Magnifying Bifocal R 22 Lenti
A plastic bifocal consisting of a base lens featuring the
distance correction, with a moulded, round magnifying
portion on its front surface. The correction of the
wearer’s ametropia is therefore also effective in the
magnifying portion. The distance portion is used for
orientation to the surrounding field, while the
magnifying portion allows the recognition of detail in
70
the near range and the reading of standard print sizes.
is generally possible. The magnifying portion is centred
under the major reference point for distance vision, but
it can be nasally inset on request. The magnifying portion or the whole of the partner lens is occluded. A
lenticular version is available for high plus powers for
reasons of thickness and weight.
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22
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Magnifying Bifocal R 22 Lenti
Technical data
70
22
Magnification
Dioptric power of
Working distance
(D/4)
magnifying portion
Field of view
1.5 x
6D
175 mm
115 mm
2
x
8D
140 mm
95 mm
3
x
12 D
100 mm
64 mm
4
x
16 D
75 mm
48 mm
B10
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A plastic bifocal consisting of a base lens featuring no
corrective power, with a moulded, round magnifying
portion on the centre of its front surface. The magnifying portion is produced with a 5x or 6x magnification
vision and for reading standard print sizes. The distance portion can be used for orientation purposes.
70
is generally possible. The magnifying portion or the
whole of the partner lens is occluded.
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Technical data
70
20
Magnification
Dioptric power of
Working distance
(D/4)
magnifying portions
Field of view
5x
20 D
65 mm
33 mm
6x
24 D
55 mm
27 mm
B12
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Seite 15
Telescopic system with a Galilean design and magnification of 1.8x, convertible to a ”teleloupe“ system by
the attachment of clip-on lenses on the object side for
near vision.
The Telescopic Spectacles G 1.8 are used monocularly
or binocularly by persons with low vision in order to
magnify objects in the distance to such an extent that
they become visible again. The object-side attachment
of clip-on lenses turns the telescopic system into a
”teleloupe“ system. The appropriate magnification
makes it possible for the user to identify close-up
objects and to read standard print sizes. Due to the
parallel position of the telescope systems, only monocular use is possible in near vision. The other lens is
covered with a frosted clip-on lens.
For mounting reasons, the distance between the principal visual point and rim of the frame must not be less
20-690 e-III/2009
than 17 mm.
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Seite 16
Technical data
Mdistance
1.8x
Field of view
425 m/1000 m ^
= 24°
Length
Weight
26 mm
approx. 30 g
Clip-on lenses for intermediate distances
Total
Dioptric
Working distance
Free
Field of
Version
magnification
power (D)
measured from
working
view
Single-
Multi-
vision
focal
for near*
the eye
distance
1.84
+0.50
2
m
2
m
1.000 mm
•
1.87
+1.00
1
m
1
m
500 mm
•
1.94
+2.00
0.54 m
0.5 m
260 mm
•
2,00
+3.00
0.37 m
0.33 m
170 mm
•
* referred to working distance
Clip-on lenses for near vision
Total
Loupe
Dioptric
magnification
magnification
power (D)
for near**
Working
distance
measured
from eye
Free
Field of
Version
working
view
Single-
Multi-
vision
focal
2x
1.11x
+ 4.44
260 mm
215 mm
distance
110 mm
•
•
3x
1.67x
+ 6.68
185 mm
140 mm
75 mm
•
•
4x
2.22x
+ 8.88
150 mm
105 mm
52 mm
•
•
5x
2.78x
+ 11.12
130 mm
85 mm
42 mm
•
•
6x
3.33x
+ 13.32
110 mm
65 mm
34 mm
•
•
•
8x
4.44x
+ 17.76
95 mm
50 mm
26 mm
•
10x
5.5 x
+ 22.00
90 mm
40 mm
20 mm
•
12x
6.6 x
+ 26.40
85 mm
32 mm
15 mm
•
B14
20-690 e-III/2009
** referred to working distance = 250 mm
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Seite 17
The Telescopic Spectacles G 2.2 feature one or two
Galilean telescope systems either monocularly or binocularly. The magnification for distance vision is 2.2x.
Together with the inconspicuous light grey colour of
the housing, the large field of view provided by the
coated optics ensures a high level of acceptance of the
system by persons with low vision.
Object-side clip-on lenses increase the range of possible applications, allowing the Telescopic Spectacles
G 2.2 to be used for distance, intermediate and near
vision.
With the appropriate magnification, the recognition of
near objects and the reading of standard print sizes are
once again possible. Due to the parallel position of the
telescope systems, only monocular use is possible for
near vision. The other lens is covered with a frosted
clip-on lens.
For mounting reasons, the distance between the principal visual point and the rim of the frame must be less
20-690 e-III/2009
than 13 mm.
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Seite 18
Technical data
Mdistance
2.2x
Field of view
326 m/1000 m ^
= 18.5°
Length
Weight
25 mm
approx. 18.5 g
Clip-on lenses for intermediate distances
Total magnification Dioptric
Working distance
Free working
Field
for near*
power (D)
measured from eye
distance
of view
2.27x
+ 0.50
2.067 m
2
m
625 mm
2.32x
+ 1.00
1.053 m
1
m
313 mm
2.44x
+ 2.00
0.555 m
0.52 m
159 mm
2.55x
+ 3.00
0.386 m
0.35 m
106 mm
* referred to working distance
Clip-on lenses for near vision
Total magnification Loupe
Dioptric
Working distance
Free working
Field
for near**
magnification
power (D)
measured from eye
distance
of view
2.5x
1.14x
+ 4.56
246 mm
209 mm
65 mm
3 x
1.36x
+ 5.44
211 mm
175 mm
55 mm
4 x
1.82x
+ 7.28
167 mm
131 mm
41 mm
5 x
2.27x
+ 9.10
142 mm
105 mm
33 mm
6 x
2.73x
+ 10.92
125 mm
88 mm
28 mm
8 x
3.64x
+ 14.56
102 mm
66 mm
20 mm
B16
20-690 e-III/2009
** referred to working distance = 250mm
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Seite 19
The Telescopic Spectacles K 4 are fitted monocularly
with a Kepler-type telescope system featuring a magnification of 4x for distance vision.
They have been designed to help people with low
vision to recognize objects in the distance.
By the attachment of clip-on lenses on the object side,
the telescope system can be converted to a ”teleloupe“
system for use at intermediate distances and/or for
near vision. This allows the low vision wearer to recognize objects at close range and to read standard print
sizes. A swivel mechanism of the clip-on lenses allows
the wearer to switch rapidly from distance to near
vision, and double clip-on lenses permit one or two
lenses to be swung quickly into position.
For mounting reasons, the distance between the principal visual point and the rim of the frame must not be
20-690 e-III/2009
less than 13 mm.
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Seite 20
Technical data
Mdistance
Field of view
226 m/1000 m ^
=13°
4x
Length
Weight
approx. 52 mm
approx. 33 g
Swing-in clip-on lenses for intermediate distances
Working distance
Free working
Field
for near
power (D)
measured from eye
distance
of view
ca. 4x
+ 0.34
3.066 m
3
m
685 mm
ca. 4x
+ 0.50
2.066 m
2
m
463 mm
ca. 4x
+ 1.00
1.066 m
1
m
232 mm
ca. 4x
+ 2.00
0.566 m
0.5 m
118 mm
Swing-in clip-on lenses for near vision
Total magnification for near
Loupe
Dioptric
Working distance
Free working
Field
magnification
power (D)
measured from eye
distance
of view
4x
1
x
+ 4.0
313 mm
247 mm
58 mm
5x
1.25x
+ 5.0
264 mm
198 mm
47 mm
6x
1.5 x
+ 6.0
233 mm
167 mm
40 mm
8x
2
x
+ 8.0
187 mm
121 mm
29 mm
10x
2.5 x
+ 10.0
164 mm
98 mm
23 mm
12x
3
x
+ 12.0
149 mm
83 mm
20 mm
14x
3.5 x
+ 14.0
135 mm
69 mm
17 mm
16x
4
x
+ 16.0
126 mm
60 mm
15 mm
20x
5
x
+ 20.0
113 mm
47 mm
12 mm
Double, swing-in clip-on lenses possible as:
te distances and required loupe magnification for near
vision
Combinations featuring different loupe magnificaValid from January 1, 2009, Subject to change
B18
tions for near vision
20-690 e-III/2009
Combinations featuring dioptric power for intermedia-
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Seite 21
The Telescopic Spectacles K 4 vario are fitted monocularly with a Kepler-type telescope system with a magnification of 4x for distance vision. The system can be
set from distance to near vision by appropriately
turning the objective lens.
The Telescopic Spectacles K 4 vario can be optionally
fitted with a locking ring which serves as an objective
stop for the largest object distance requested by the
wearer. It can be attached in any position on the system housing using a pin screw.
The teleloupe magnification for near vision totals a
maximum of 8x (with correction of 0.0 D). This near
magnification can be increased to 10x by the attachment of a clip-on lens.
Persons with low vision can use the K 4 vario Telescopic
Spectacles to recognize objects in the distance, at
intermediate distances and in the close-up range.
For mounting reasons, the distance between the principal
visual point and the rim of the frame must not be less
20-690 e-III/2009
than 13 mm.
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Seite 22
Technical data
Mdistance ↔ Mnear
with clip-on lens Mnear
Length
Weight
4x ↔ 8x
10x
44.5 ↔ 64.5 mm
approx. 46 g
Working distance
Free working
Field
measured from eye
distance
of view
Magnification
Telescope system
K 4 vario
Distance focusing
4x
∞
∞
226 m/1000 m
Near focusing
8x
245 mm
170 mm
29 mm
380 mm
Telescope system
K 4 vario with
clip-on lens
approx. 4x
1.6 m
1.54 m
10x
200 mm
120 mm
B20
20 mm
20-690 e-III/2009
Distance focusing
Near focusing
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Seite 23
Binocular telescope system with a Kepler design and
4x magnification, convertible to monocular teleloupe
system by the attachment of clip-on lenses for near
vision.
Telescopic Spectacles K 4 bino are used binocularly as
a low vision aid to magnify distant objects and hence
make them visible again for the wearer.
By the attachment of clip-on lenses on the object side,
the telescope system can be used monocularly as a
“teleloupe” system. With the appropriate magnification, this makes it possible to recognize close-up
objects again and to read standard print sizes. A
swivel mechanism on the clip-on lenses allows the
wearer to switch rapidly from distance to near vision.
Double clip-on lenses make it possible to swing either
one of the two lenses or both into position. The partner
lens is provided with a frosted clip-on lens in each
case.
For mounting reasons, the distance between the principal visual point and the rim of the frame must not be
20-690 e-III/2009
less than 13 mm.
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Seite 24
Technical data
Mdistance
Field of view
226 m/1000 m ^
=13°
4x
Length
Weight
approx. 52 mm
approx. 64 g
Swing-in clip-on lenses for intermediate distance
Working distance
Free working
Field
for near
power (D)
measured from eye
distance
of view
ca. 4x
+ 0.34
3.066 m
3
m
685 mm
ca. 4x
+ 0.50
2.066 m
2
m
463 mm
ca. 4x
+ 1.00
1.066 m
1
m
232 mm
ca. 4x
+ 2.00
0.566 m
0.5 m
118 mm
Swing-in clip-on lenses for near vision
Total magnification for near
Loupe
Dioptric
Working distance
magnification
power (D)
Free working
Field
measured from eye distance
of view
4x
1
x
+ 4.0
313 mm
247 mm
58 mm
5x
1.25x
+ 5.0
264 mm
198 mm
47 mm
6x
1.5 x
+ 6.0
233 mm
167 mm
40 mm
8x
2
x
+ 8.0
187 mm
121 mm
29 mm
10x
2.5 x
+ 10.0
164 mm
98 mm
23 mm
12x
3
x
+ 12.0
149 mm
83 mm
20 mm
14x
3.5 x
+ 14.0
135 mm
69 mm
17 mm
16x
4
x
+ 16.0
126 mm
60 mm
15 mm
20x
5
x
+ 20.0
113 mm
47 mm
12 mm
Double, swing-in clip-on lenses possible as:
diate distances and required loupe magnification for
near vision.
Combinations featuring different loupe magnificaValid from January 1, 2009, Subject to change
B22
tions for near vision
20-690 e-III/2009
Combinations featuring dioptric power for interme-
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Seite 25
Binocular teleloupe system with 4 to 8x magnification
for near vision.
The Teleloupe Spectacles K bino are intended solely for
binocular use in near vision to magnify reading texts
to such an extent that they become visible again for
persons with low vision.
The minimum distance between the principal visual
point and the rim of the frame is dependent on the
PD, the vertex distance and the magnification. If the
distance is less than 20 mm, please ask us whether this
20-690 e-III/2009
is possible.
B23
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Seite 26
Technical data
Length
Weight
between 50 and 59 mm, depending on ametropia and magnification
approx. 64 g
Magnification
Working distance
Free working
Field
distance
of view
4x
295 mm
depending
58 mm
5x
255 mm
on
46 mm
6x
230 mm
ametropia
38 mm
8x
200 mm
B24
20-690 e-III/2009
29 mm
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Seite 27
STMS™ System Carrier
for Magnifying Visual Devices
The outstanding features of the STMS™ System Carrier
include its attractive design and modern material. The
use of pure titanium guarantees not only a low weight,
but also optimum skin compatibility, and therefore
plays a decisive role in increasing wearing comfort.
The single-component bridge element ensures that the
front part of the frame is torsion-free and makes the
system carrier dimensionally stable.
The time-tested silicone saddle bridge guarantees a
good, secure fit of the STMS™ System Carrier. However, it can also be fitted with individual, comfortable
soft pads. The temples are available in a hook-type
version or a straight version with an elastic rear head-
20-690 e-III/2009
band.
B25
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Seite 28
STMS™ System Carrier
Availability
Sizes
Temple length
Colour
47/16
47/18
50/16
50/18
53/16
53/18
56/18
B26
130 mm
•
135 mm
•
135 mm
•
53/20
140 mm
•
56/20
140 mm
•
50/20
20-690 e-III/2009
natural titanium
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Seite 29
System Carrier LV basic
The system carrier LV basic is specially adapted to the
requirements resulting from the fitting of telescopic or
teleloupe spectacles.
The ideal distribution of pressure in the nose area is
achieved by a soft bridge component. Along with the largely distortion-free front of the frame, special Marvel
temples ensure a comfortable, secure fit. The mattfinished surface is palladium-plated and does not
therefore release nickel.
The wide range of sizes available allows exact adapta-
20-690 e-III/2009
tion to the special needs of a low vision aid.
B27
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Seite 30
System Carrier LV basic
Availability
Sizes
Temple lenght
48/18
140 mm
50/18
145 mm
52/18
52/20
54/18
54/20
150 mm
B28
20-690 e-III/2009
56/20
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Seite 31
Monocular Hand Telescopes
3 x 12 B Mono ClassiC
4 x 12 B T* Mono DesignSelection
Small monocular telescopes can give people with a
severe visual handicap greater mobility outdoors.
Depending on the magnification required, three models
from the extensive range of binoculars from Carl Zeiss
are particularly suitable.
Continuous focusing from the distance into the near
range offers outstanding flexibility of use, e.g. for reading railway timetables and road signs or for windowshopping.
Their compact dimensions make the telescopes easy to
carry around and inconspicuous to use.
Large fields of view and coated optics ensure that the
user can make optimum use of his or her remaining
20-690 e-III/2009
visual acuity.
B29
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Seite 32
Monocular Hand Telescopes
3 x 12 B Mono ClassiC
Technical data
3x12 B Mono
4x12 B T* Mono
6x18 B T* Mono
ClassiC
DesignSelection
DesignSelection
Distance magnification
3x
4x
6x
Near magnification
6x
7x
13x
0.3 m
0.3 m
Shortest focusing distance 0.2 m
Focusing
turning mechanism
push-pull mechanism
push-pull mechanism
Field of view at 1000 m
200 m
184 m
120 m
Weight
54 g
45 g
58 g
Length with extended
eyecup
65 mm
70 mm
94 mm
Housing
light metal,
glass fibre reinforced
glass fibre reinforced
black
plastic, grey
plastic, grey
B30
20-690 e-III/2009
A practical neck cord is part of the delivery package
Products
Contents
Magnifying Visual Devices from Carl Zeiss Vision for Professional Users C
C1
Teleloupe Spectacles GTX C3
Head-worn Loupe KF Titanium
C5
Head-worn Loupe KS
C7
LED Illumination Saphiro2
C9
Teleloupe Spectacles G 2.5 TTL
C11
Teleloupe Spectacles K bino TTL professional C13
EN_20_010_692III CZ-X/2010
Kapitel_C_20-692_ENG.qxd
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Seite 3
Optimized fields of view
The size of the field of view is of crucial significance for
the practical usefulness of a visual aid. The user must be
able to view his field of action in its entirety. The teleloupe spectacles and head-worn loupes from Carl Zeiss
Vision have therefore been designed to provide an optimally large field of view.
Image quality
Uncompromisingly high image quality is vital for
making all details visible and for ensuring that the
magnification must not be unnecessarily high. This
makes it considerably easier to handle the visual aid, as
the size of the field of view, the depth of focus and the
working distances all remain within comfortable pro-
20-692 e-III/2009
portions.
C1
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Seite 4
Correction of ametropia
To provide the user of a magnifying visual aid with the
best possible visual quality, it is important to correct
his or her ametropia. In products from Carl Zeiss Vision,
the wearer's prescription can either be integrated with
a spectacle lens, or he can wear his own spectacles
while using the aid. The KF and KS Head-worn Loupes
are therefore provided with special high-eyepoint eyepieces for spectacle-wearers. The result: the field of
view is the same size, regardless of whether the loupe
is worn with or without prescription spectacles.
Working distances
Nowadays, major importance is attached to ergonomics. The working distances in the products offered by
Carl Zeiss Vision therefore meet the various requirements resulting from the respective field of application
and its individual parameters.
Bridge in Head-worn Loupes
KF and KS
Binocular optical systems with a Kepler design from
Carl Zeiss Vision all feature a fixed bridge. This ensures
exact alignment of the optical axes of the two systems.
This is the only way of ensuring problem-free binocular
vision.
LED illumination
for head-worn loupes
An additional coaxial, LED illumination system ideally
illuminates the field of view – even in difficult light
conditions, e.g. in dentistry. The light is always in exactThe coaxial illumination beam path allows cavities to
be illuminated without shadow.
C2
20-692 e-III/2009
ly the same location as that observed with the loupe.
15.04.2009
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Seite 5
Teleloupe Spectacles GTX
The Teleloupe Spectacles GTX are head-worn loupes
which must be fitted for each individual wearer by an
eyecare professional. They are used for binocular,
stereoscopic near vision in medicine and technology.
The teleloupe systems with a Galilean design feature a
2x or 2.5x magnification and are each available with
various working distances.
The systems are contained in mounting rings which are
cemented onto glass or plastic eyeglass lenses featuring any prescription.
The carrier lenses can be inserted in any sturdy spectacle frame with good fitting properties. The small size of
the systems allows good orientation to the surrounding
field.
The Teleloupe Spectacles GTX can be equipped with the
Saphiro LED illumination. This allows an ideal, very easy
combination of magnification and illumination.
For cementing of the mounting
rings, the following specifications
are required:
1. single PD for distance. (The nasal inset for near is
calculated on the basis of the different parameters
listed from 2 to 4.2)
2. viewing height for near (centre of mounting ring)
3. vertex distance (corneal vertex – front lens vertex)
4. prescription of carrier lenses
4.1 distance correction
20-692 e-III/2009
4.2 near correction (specification of additon)
C3
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Seite 6
Teleloupe Spectacles GTX
Technical data
(with correction 0.0 D)
Length
Weight
approx. 20 mm
GTX 2:
approx. 6 g per system with mounting ring
GTX 2.5: approx. 7 g per system with mounting ring
Magnification
Working distance
Free object
Field
distance
of view
2x
500 mm
465 mm
84 mm
2x
450 mm
415 mm
76 mm
2x
400 mm
365 mm
68 mm
2x
350 mm
315 mm
60 mm
2x
300 mm
265 mm
52 mm
2.5x
450 mm
413 mm
72 mm
2.5x
400 mm
363 mm
64 mm
2.5x
350 mm
313 mm
57 mm
Note: The object distance is reduced if the systems are cemented onto lenses with near correction
or if the wearer accommodates.
The mounting rings of the GTX Teleloupe Systems can be attached to glass or plastic carrier lenses.
Mounting on plastic lenses from Carl Zeiss Vision is possible solely for the following lens types:
• Clarlet 1.6
• Clarlet 1.6 Gold ET
• Clarlet 1.5 Hard
• Clarlet 1.5 Hard Gold ET
• Clarlet 1.5 Duopal C 25 Hard Gold ET
• Clarlet 1.5 Duopal C 28 Hard Gold ET
The minimum thickness of plastic carrier lenses is 2.5 mm.
C4
20-692 e-III/2009
Any stable eyeglass frame with good fitting properties is suitable for use as a system carrier.
15.04.2009
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Seite 7
The head-worn Loupe KF Titanium is used for binocular,
stereoscopic near vision in medicine and technology.
The teleloupe system features a Kepler design and is
mounted on the system carrier KF Titanium, a frame
with straight sides and an elastic headband. The optical system is available in various magnifications and
working distances, and the system carrier in various
frame sizes. High-eyepoint eyepieces for spectacle
wearers allow the system to be worn in front of
the frame, which can be glazed with lenses of any
prescription.
The vertical positioning and inclination of the teleloupe
system K relative to the eyes are performed via the
connecting component of the system carrier.
The PD is set via the folding bridge of the system.
If required, the teleloupe system K can be swung out of
the field of view and then returned to the work position.
The screw-on lens protection device – a standard
component in the delivery package of the teleloupe
system K – protects the optical systems from splashes
20-692 e-III/2009
and damage.
C5
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Seite 8
Technical data
(with correction 0.0 D)
Length (optical systems)
Weight
51.5 to 62 mm
approx. 135 g
Teleloupe system K
Magnification
4 x
Working distance
Free object
Field
distance
of view
500 mm
425 mm
93 mm
3.2x
500 mm
430 mm
115 mm
4 x
450 mm
375 mm
81 mm
3.3x
450 mm
380 mm
100 mm
4.3x
400 mm
325 mm
68 mm
3.5x
400 mm
330 mm
86 mm
4.5x
350 mm
275 mm
56 mm
3.6x
350 mm
280 mm
71 mm
5 x
300 mm
220 mm
44 mm
4 x
300 mm
230 mm
56 mm
4.5x
250 mm
180 mm
40 mm
5 x
235 mm
155 mm
36 mm
6 x
215 mm
135 mm
30 mm
8 x
190 mm
110 mm
23 mm
Frame sizes
Material
Colour
56-18 large
Pure titanium with solder-
Natural titanium
53-20 standard
free laser welded joints
System carrier KF Titanium
50-18 small
Mechanical lens protection device, contact guard (sterilizable), cold light illumination
C6
20-692 e-III/2009
Supplementary components
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Seite 9
Head-worn Loupe KS
The Head-worn Loupe KS is used for binocular, stereoscopic near vision in medicine and technology
The teleloupe system features a Kepler design and is
mounted on the system carrier S (support). The optical
system is available in various magnifications and working distances. Thanks to its individual fitting possibilities, the support offers a high degree of wearing comfort.
The high-eyepoint eyepieces for spectacle wearers
allow the wearing of prescription eyewear behind the
teleloupe system K. The vertical positioning and inclination of the system are performed via the connecting
component of the support. The PD is set with the
folding bridge of the system.
If required, the teleloupe system K can be swung out
of the field of view and then into the work position
20-692 e-III/2009
again.
C7
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Seite 10
Head-worn Loupe KS
Technical data
Length (optical systems)
Weight (support and system)
51.5 to 62 mm
approx. 330 g
Magnification
Working distance
Free object
Field
distance
of view
4 x
500 mm
425 mm
93 mm
3.2x
500 mm
430 mm
115 mm
4 x
450 mm
375 mm
81 mm
3.3x
450 mm
380 mm
100 mm
4.3x
400 mm
325 mm
68 mm
3.5x
400 mm
330 mm
86 mm
4.5x
350 mm
275 mm
56 mm
3.6x
350 mm
280 mm
71 mm
5 x
300 mm
220 mm
44 mm
4 x
300 mm
230 mm
56 mm
4.5x
250 mm
180 mm
40 mm
5 x
235 mm
155 mm
36 mm
6 x
215 mm
135 mm
30 mm
8 x
190 mm
110 mm
23 mm
Supplementary components
C8
20-692 e-III/2009
Mechanical lens protection device, cold light illumination, contact guard (sterilizable)
15.04.2009
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Seite 11
LED Saphiro 2 Illumination
Saphiro2 is a mobile, high-performance LED illumination system used by professional users, above all in
combination with head-worn loupes. The fields of view
are illuminated by Saphiro2 with uniform brightness
and without shadows in a spectrum resembling daylight, allowing many visual tasks to be performed much
more effectively and comfortably.
The required brightness can be set continuously on a
control device. An powerful rechargeable battery
allows mobile, line-independent operation. The control
device is worn on the body using a belt clip.
The high degree of wearing comfort is ensured by low
weight. The very small, lightweight illuminating head
of Saphiro2 can be attached to all head-worn loupes
from Carl Zeiss Vision using mechanical adapters.
A special eyeglass clip allows Saphiro2 to be attached
to practically any eyeglass frame.
An ideal, very easy combination of magnification and
illumination is achieved through the use of the
20-692 e-III/2009
Teleloupe Spectacles GTX with Saphiro2.
Valid from June 1, 2011. Subject to change
C9
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14:59 Uhr
Seite 12
Saphiro LED Illumination
Technical data
Illumination:
Rechargeable battery:
Luminous intensity
35,000 lux at distance of 250 mm
Color temperature
5,500 K (daylight characteristics)
Size of illuminating head
diameter 25 mm
Weight of illuminating head
11 g
Lithium Cobalt
2600 mAh, 3.7 V
Operating time
approx. 3-4 hours at full load, 5-6 hours
in area marked in blue
(irrespective of age and charging
status of battery)
Control device:
Charger:
Charging time
approx. 3 hours
Dimensions
100 x 30 x 30 mm
Weight
70 g
Dimensions
100 x 50 x 45 mm
Weight (without battery)
82 g
Operating voltage
100 V to 240 V AC
50/60 Hz
Delivery package:
1 illumination unit with control device
1 BCV2 charger with world plug set
SV2 battery pack
1 fastening set
1 patient protection filter
1 operating manual
1 case
Additional rechargeable battery
Valid from June 1, 2011. Subject to change
C10
20-692 e-III/2009
Supplementary components:
The G 2.5 TTL teleloupe spectacles are head-worn
binocular loupes that are fitted individually by eyecare
professionals. They are used for binocular, stereoscopic
near vision by professional users, e.g. in medicine and
technology.
The Galilean-type teleloupe systems offer 2.5x magni
fication and are available in three different working
distances. The optical systems are mounted in the carrier
lens (TTL = through the lens). The plastic carrier lenses can
be with or without prescription.
If required, the eyepieces of the optical systems can also
contain prescription power. The small size of the optics
provides the user with good orientation in his or her
immediate surroundings.
The proven STMS system carrier is used. It is fitted with
straight temples and a headband for maximum wearing
comfort.
The G 2.5 TTL teleloupe spectacles can be combined with
the Saphiro² LED illumination. This results in an ideal
combination of magnification and illumination.
Notes on the ordering
and fitting of the
The following data is required in the order for mounting
of the optical systems in the carrier lenses:
1. Single PD for distance. (The nasal inset for near is
calculated by Carl Zeiss Vision as a function of the
centring data.)
2. Viewing height for distance
3. Vertex distance (corneal vertex to front lens vertex)
Teleloupe Spectacles G 2.5 TTL with Saphiro²
4. Working distance of the optical systems
5. Prescription powers for the eyepieces of the optical
systems if required
6. Prescription powers of the carrier lenses if required
EN_20_010_692II CZ-IV/2010
7. Frame size of system carrier
Valid from April 1, 2010. Subject to change
C11
Technical data
Length
Weight
approx. 36 mm
approx. 22 g (for each system)
Magnification
Working distance
Free object
Field of view
measured from eye
distance
2.5x
350 mm
315 mm
75 mm
2.5x
400 mm
365 mm
85 mm
2.5x
450 mm
415 mm
94 mm
Note: The object distance is reduced if the user accommodates.
System carrier STMS (with straight temples and elastic headband)
Frame sizes
Material
Colour
50-18 small
Pure titanium with solder-free
Natural titanium
53-20 standard
laser welded joints
56-18 large
Versions of the Teleloupe Spectacles G 2.5 TTL
Description
Equipment
Teleloupe Spectacles G 2.5 TTL basic
Carrier lenses and eyepieces of optical systems without
without
ohne
Korrektionswirkung
prescription
Teleloupe Spectacles G 2.5 TTL pro 1
Okulare
Eyepiecesderofoptischen
the opticalSysteme
systemsmit
with
Korrektionswirkung
prescription
Eyepiece lens: Clarlet
1.6 GET / -10.00
+2.00 D,
in stronger
principal meridian;
cyl 4.00
Okularlinse:
Clarlet
1.6 GET / to-10,00
bistoric
+2,00
dpt tor.i.st.H.;
cyl 4,00
dptD
Teleloupe Spectacles G 2.5 TTL pro 2
Trägergläser
Carrier lensesund
andOkulare
eyepieces
derofoptischen
optical systems
System
mit Korrektionswirkung
Eyepiece lens: Clarlet
1.6 GET / -10.00
+2.00 D,
in stronger
principal meridian;
cyl 4.00
Okularlinse:
Clarlet
1.6 GET / to-10,00
bistoric
+2,00
dpt tor.i.st.H.;
cyl 4,00
dptD
Valid from April 1, 2010. Subject to change
C12
EN_20_010_692II CZ-IV/2010
Carrier lenses: Clarlet
1.6 LT / -10.00
+2.00 D,bis
toric+2,00
in stronger
meridian;
cyl 4.00
D
Trägergläser:
Clarlet
1.6 LT /to-10,00
dpt principal
tor.i.st.H.;
cyl 4,00
dpt
K bino TTL professional
The teleloupe spectacles K bino TTL professional are
head-mounted binocular teleloupe spectacles used
for medical and technical applications for binocular,
stereoscopic near vision.
The teleloupe systems of Kepler design are available in
different sizes. The optical systems are mounted on the
carrier lenses (TTL = through the lens).
If required, the eyepieces of the optical systems can be
equipped with prescription lenses.
As a system carrier either the proven system carrier STMS
or a fashionable sports frame are used. For maximum
comfort, the system carrier is equipped with sides and
a strap.
The teleloupe spectacles K bino TTL professional can be
perfectly combined with the LED illumination Saphiro².
Teleloupe spectacles K bino TTL professional
with system carrier STMS
Increased magnification in combination with shadowfree illumination of the work area are the basis for
optimal results.
Information on ordering and
adjusting the teleloupe spectacles
In order to mount the optical systems on the carrier lenses,
the following information is required when ordering:
1. Single interpupillary distance for distance vision. (The
nasal displacement for near vision is calculated as a
function of the centration data of Carl Zeiss Vision)
2. Viewing height for straight-ahead distance vision
3. Vertex distance (corneal vertex to front lens vertex)
4. Magnification of the optical systems
5. possibly correction values for the eyepieces of the
optical systems
Teleloupe spectacles K bino TTL professional
with sports frame and Saphiro²
EN_20_010_692III CZ-X/2010
6. System carrier (type and size)
Valid from 1 November 2010, subject to change
C13
Specifications
Installation length
Weight
Depending on defective vision and
approx. 64 g
magnification, between 50 – 59 mm
Magnification
Working distance
Free working
measured from eye
distance
Field of view
4.0x
450 mm
Dependent on
80 mm
4.2x
400 mm
defective vision
75 mm
4.4x
350 mm
68 mm
5.0x
450 mm
65 mm
5.6x
400 mm
61 mm
6.0x
350 mm
56 mm
System carrier STMS
Frame sizes
Material/features
Color
50-18 small
Pure titanium with solderless
Titanium natural
53-20 standard
laser-welded joints
56-18 large
sides
Elastic strap
Sports frame
Frame sizes
Material/features
Color
Small (S)
Plastic frame
Transparent
Large (L)
Strap
Adapter for LED lighting
Valid from 1 November 2010, subject to change
C14
EN_20_010_692III CZ-X/2010
Saphiro²
Kapitel_D_20-694_ENG.qxd
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Products
Contents
20-694 e-III/2009
Fitting Devices from Carl Zeiss Vision
D
D1
Standard Fitting Set
D5
Test Charts for Low Vision Patients
D7
Near Vision Test Charts
D9
Binocular Reading Charts
D11
Fitting Set for Teleloupe Spectacles GTX
D13
Fitting Set for Special Filter Lenses
D15
Demo Kit for Concept bino ET
D17
sold out
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Seite 3
For the prescription and fitting of low vision devices, Carl
Zeiss Vision offers various fitting devices which allow
you to work systematically.
Standard fitting set
The standard fitting set contains materials for the prescription and fitting of those optical magnifying devices
which cater for the requirements of the vast majority of
persons with low vision.
Test charts for
low vision patients
The test charts for low vision patients offer a selection of
optotypes adapted to reduced testing distances of 1 m
and 2 m. With the acuity grades of 0.025 – 1.00, they are
ideal for testing low vision patients.
Near vision test charts
The near vision test charts provide rapid information on
the reading ability of low vision patients. The size of
the reading print which the patient can still just see
provides a direct indication of what near magnification
is required to allow the reading of standard print sizes
again.
Binocular reading charts
The binocular reading charts consist of test groups of
different sizes, each comprising three lines. The upper
and lower lines are polarizing, the line in the middle is
not. If appropriate analyzers are placed in front of the
patient’s eyes, clear information is obtained on the
patient’s reading ability.
Fitting set for Teleloupes GTX
This fitting set offers you the possibility of demonstrating Teleloupe Systems GTX, taking into account each
individual patient’s ametropia and accommodation. For
example, it is possible to measure the actual working
20-694 e-III/2009
distance resulting when the patient looks through the
systems, a parameter which influences the exact centration of the systems.
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The
fitting
of
optical
low
vision
devices in short
The following provides a summary of the systematic
prescription and fitting procedures.
1. Lens prescription
for reduced visual performance
Objective refraction;
Subjective refraction;
Test charts for low vision patients
for work at reduced testing distance;
Use trial frame;
Match grading of lenses to reduced
visual performance
2. Determining required magnification
Required
magnificationdistance= acuitynominal / acuitycc
The primary goal in providing patients with low
vision devices is to enable them to read standard
print sizes (e.g. in newspapers) again. An acuity of
0.4 (acuitynominal) is required for this purpose. Even
smaller print (medication instruction leaflets, phone
books, etc.) require a higher acuity (approx. 0.7).
Required magnification for near vision => can be
taken directly from the value given in the near
vision test charts.
3. Testing and selecting low vision devices
Distance:
Hand telescope to maintain outdoor mobility;
Telescopic spectacles for longer stationary use
(e.g. watching TV)
Near:
Spectacles with the appropriate addition as full lens
or magnifying bifocal;
or telescopic spectacles with near focusing facility);
Hand telescope with near focusing facility for spontaneous use
D2
20-694 e-III/2009
Teleloupes (telescopic spectacles with clip-on lens
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Seite 5
4. Fitting
Select and fit the system carrier;
Centration in accordance with the center of rotation requirement;
Determine viewing height for near (if required);
Determine back (corneal) vertex distance
5. Ordering and production
Report to ophthalmologist
6. Final fitting and dispensing
Check fit and patient’s visual performance;
Instruct the patient in the use of the device
7. Follow-up checks
At regular intervals in order to ensure that the
device is fulfilling its purpose.
The right visual aid
for every purpose
The following table provides you with a summary of
* Also available as teleloupes (telescopes focusable for
where the various visual devices can be used:
near vision) for hand use for short periods of reading,
etc.
** Also available as teleloupes (telescopes with clip-on
lenses) for hand use for short perception of text and
numerals, etc. in the near range
Degree of visual
Type of visual
Magnification/
impairment
device
Refracting power
Type
Use
For spontaneous detection
Visual devices for distance
Acuity approx.
Hand telescopes
3x to approx. 10x
Kepler
Telescopic
1.6x; 2.2x;
Galilean
For longer stationary use
spectales
4x
Kepler
(e.g. watching TV, etc.)
6 - 10 D
1. Hand magnifier
1. Shorter periods of reading, etc.
Acuity approx. 0.1 - 0.2
12 - 20 D
2. Stand magnifier
2. Longer periods of reading, etc.
Acuity ≤ 0.1
24 - 40 D
Hand magnifier
Short perception of
2 to 3x
Galilean
Longer periods of reading, etc.
4 to 6x*
Galilean, Kepler
Longer periods of reading, etc.
8 to 12x*
Galilean, Kepler
Shorter periods of reading, etc.
Kepler
Shorter periods of reading, etc.
0.2 - 0.3
Acuity ≤ 0.3
of details in distance
Visual devices for near
20-694 e-III/2009
Magnifiers
text and numerals, etc.
Acuity ≤ 0.02
Teleloupes
14 to 20x**
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Teleloupes GTX – Prescription
and fitting procedures
1. Demonstration of the GTX systems
Aids:
Fitting set GTX, trial frame, test object with strong
fusional stimulus (e.g. near vision tester, test types
with cross)
Goal:
To demonstrate the visual impression obtained
with GTX systems for the user
To determine the actual working distance, taking
ametropia and accommodation into account
Procedure:
Insert test holder with GTX systems in trial frame
(careful with allocation of left, right and axis)
Insert correction along with addition (where applicable) in the trial frame
Set single image by turning the GTX systems in the
mounting rings
2. Fitting the system carrier
Select and fit spectacle frame
Perform centration procedure in accordance with
centre of rotation requirement (lens is centred
when its optical axis runs through the eye’s optical
centre of rotation).
Determine viewing height for near.
3. Production
For Teleloupes GTX, please use the order form
(01742/G 2).
Required parameters:
Single PD for distance
Viewing height for near
Back vertex distance (corneal vertex
to front lens vertex)
Correction powers of the lenses (where applicable,
Working distance determined from 1.
D4
20-694 e-III/2009
also with near correction / addition)
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Seite 7
Standard Fitting Set
for Low Vision Devices
The Standard Fitting Set for Low Vision Devices consists
of material for determining and fitting of those low
vision aids from Carl Zeiss Vision which cater for the
vast majority of persons with a severe visual impairment.
It contains test units for the G 1.8, G 2.2, K 4 and K 4
vario Telescopic Spectacles. The Test Charts for the
Visually Impaired and the Near Vision Test Charts are
located in the upper part of the compact case.
The test units include telescope systems and clip-on
lenses for determining and demonstrating distance and
near magnifications.
Clip-on lenses with +1.00 D are each used for dioptric
compensation at a test distance of 1 m.
The ZEISS Precision Trial Frame – in addition to other
common trial frames – is especially recommended for
use with the Standard Fitting Set for Low Vision Aids.
The test systems are simply inserted in the slots
intended for the trial lenses and, if necessary, fixed
in position.
Two system carriers in different sizes* can be used
either directly for fitting the low vision aid or for
determining the size of the system carrier required.
There is ample room in the case for the Binocular
Reading Tests and the accompanying polarisation-clip.
Please see our price list for a detailed breakdown of
the equipment required.
20-694 e-III/2009
* Depending on the equipment required.
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Test Charts for
Low Vision Patients
Four successive sheets contain optotypes which are specially adapted to the requirements of low vision. Based on
the test distances of 1 and 2 m, visual acuities between
0.025 and 1.0 can be tested and read off at once without
any need for conversion. The low acuity range has been
graduated to allow reasonably reliable information to also
be obtained on visual performance in the case of low
acuities. Additional optotypes with the acuity grades 0.32
to 0.64 are available for the common viewing distance
of 3 m. A lateral thumb index allows the optotype size
to be quickly selected.
The Test Charts for the Visually Impaired are also very
suitable for performing standard acuity testing in the
patient’s home.
The DIN A 4 test charts are made of wear-resistant plastic
with laminated, dirt-repellent covers. They can be easily
positioned or hung up in any location and are therefore
ready for use at any time. They are just as easy to fold up
20-694 e-III/2009
again and can be stored without taking up much space.
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Near Vision Test Charts
Seven sheets of reading texts in various sizes are provided. Magnifications of 25x to 1x, referred to standard
newspaper print at a viewing distance of 0.25 m, are
assigned to each of these texts.
The Near Vision Test Charts enable the determination of
the patient's reading ability. The size of the reading
print which the patient can still just see provides
a direct indication of what near magnification is
required to allow the reading of standard print sizes.
The lateral thumb index allows fast selection of the
required text groups.
The DIN A 4 test charts are made of wear-resistant
plastic with laminated, dirt-repellent covers. They can
be easily positioned or hung up in any location and
are therefore ready for use at any time. They are just
as easy to fold up again and can be stored without
20-694 e-III/2009
taking up much space.
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Binocular Reading Charts
The Binocular Reading Charts consist of a transparent
test film with successive, three-line text groupings of
different sizes. The texts of the upper and lower lines
are polarizing. If appropriate analyzers are placed in
front of the patient’s eyes, he or she will be able to see
the upper line with one eye and the bottom line with
the other. The middle, non-polarizing line, on the other
hand, can be seen with the two eyes. When in use, the
test film is positioned in its plastic frame at a medium
reading tilt in front of a white, curved and diffusely
reflecting surface. Testing is performed in normal room
lighting.
The Binocular Reading Charts permit binocular comparison of coherent reading texts under binocular conditions. This aid can therefore be used to determine reading binocularity in general, and that of low vision
patients in particular.
The DIN A 4 test charts are made of wear-resistant
plastic with laminated, dirt-repellent covers. They can
be easily positioned or hung up in any location and are
therefore ready for use at any time. They are just as
easy to fold up again and can be stored without taking
20-694 e-III/2009
up much space.
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Seite 15
Fitting Set
for Teleloupe Spectacles GTX
The GTX Fitting Set allows the binocular demonstration
of the GTX 2 or GTX 2.5 systems, taking into account
each patient’s accommodation and ametropia.
This allows the determination of the actual working
distance and prevents errors in the centration of the
teleloupe systems.
In the standard configuration, the fitting set contains
two test holders for insertion in a trial frame, two
GTX systems each for the working distances 350 mm
and 450 mm, and a storage case.
The GTX Teleloupe Systems are available with 2x or
2.5x magnification.
20-694 e-III/2009
The photo does not show the standard configuration.
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Seite 17
Fitting Set
for Special Filter Lenses
The fitting set for special filter lenses enables the
demonstration of various filter colors using filter clips
which can be used with almost all prescription frames.
The patient is able to easily compare the various filter
colors and determine which color fits best.
The standard filter set contains four filter clips (F 540,
F 560, F 60 and F 80), as well as a case.
The binocular lorgnette (glazed with special filter
20-694 e-III/2009
lenses) can also be stored in the case.
Binocular lorgnette
According to the Medical Device Directive,
special filter lenses are not suitable for driving
as per DIN EN ISO 14889.
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Seite 1
Products
Contents
20-693 e-III/2009
Special Filter Lenses from Carl Zeiss Vision
E
E1
Clarlet F 60, F 80, F 90, F 540, F 560, F 580
E3
Clarlet F 451, F 452
E6
Filter Clip
E7
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Seite 3
Special filter lenses for medical applications completely
absorb part of the visible spectrum. Receptors in the
eye which are sensitive to this region are deliberately
“underexposed”. The contrast between those receptors
subjected to maximum, and those subjected to minimum exposure is increased. Studies have shown that,
in certain diseases of the retina, special filter lenses
often enhance contrast and reduce the time required to
adapt to different light conditions.
There are no uniform, objective criteria for the prescription of special filter lenses. Instead, the most suitable lens is usually found by trying out the various
options available, especially for such degenerative eye
disorders as retinitis pigmentosa or diabetic retinopathy. Carl Zeiss Vision offers special lorgnettes and filter
clips for this purpose.
Patients subjectively compare and assess the visual
comfort provided by the different types of filter lens
available.
Many sufferers need different filter lenses for different
Binocular lorgnette
light conditions and therefore often have several pairs
of spectacles.
Clarlet and Carat are registered trademarks of
20-693 e-III/2009
Carl Zeiss Vision.
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Clarlet F 60, F 80, F 90
Clarlet F 540, F 560, F 580
The special filter lenses Clarlet F 60, F 80 and F 90 and
Clarlet F 540, F 560 and F 580 for medical applications
were developed and tested in collaboration with international institutes and ophthalmologists. Transmission
has been optimized so that part of the visible short-
The right recommendation
for retinitis pigmentosa
Retinitis pigmentosa, or more correctly retinopathia
pigmentosa, is a hereditary, progressive disease of the
eye. Due to a malfunction in the metabolism of the
100
90
80
70
60
50
40
30
20
10
0
Transmission (%)
wave spectrum is absorbed.
Wavelength (nm)
350 400 450 500 550 600 650 700 750
F 60
F 80
F 90
retina, the sensory cells (rods and cones) are not
sufficiently supplied with blood and hence gradually
Transmission curves for Clarlet F 60, F 80 and F 90
degenerate. The many forms which this disease takes
make it impossible to give an exact description of
the symptoms.
Initially, the function of the rods is impaired. Increasing
difficulty is experienced with twilight and night vision,
extending to total night blindness. There is a gradual
contraction of the visual field from the periphery
inwards until the patient is left with “gun barrel”
vision. Orientation then becomes very problematic.
A further symptom of RP is reduced cone function.
Reduced visual acuity, a deterioration in visual contrast
and colour, and a high degree of sensitivity to glare
are the result. Special filter lenses often provide
enhanced wearing comfort.
20-693 e-III/2009
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Seite 6
Clarlet F 540, F 560, F 580
Increased visual comfort
for colour blindness
colour blindness in which the cones totally fail to
function. The patient affected has no sense of colour
whatsoever and can only distinguish between various
degrees of brightness. Nystagmus (trembling of the
eyeball) is often also present. Sensitivity to glare is very
high and visual acuity is usually severely reduced.
Transmission (%)
100
90
80
70
60
50
40
30
20
10
0
Achromatopsia or rod monochromatism is a type of
Wavelength (nm)
350 400 450 500 550 600 650 700 750
F 540
The glare effect results from oversensitivity of the rods.
F 560
F 580
The special filter lenses absorb the wavelength range
to which the rods are oversensitive and therefore
Transmission curves for Clarlet F 540, F 560 and F 580
reduce glare.
Increased visual comfort
for diabetic retinopathy
The damage caused by diabetes is usually focused on
the middle and inner layers of the retina which are
responsible for processing image contrast.
In a retina damaged by diabetes the sensitivity to contrast is impaired. In bright surroundings, relatively dark
details generate the maximum signal possible in the
brain. Brighter details do not generate a sufficiently
strong signal and cannot therefore be distinguished
from darker zones. Particularly patients in the advanced
stages of diabetic retinopathy are easily dazzled by
glare and find light/dark adaptation difficult.
Cut-off filters such as F 540, F 560 and F 580 absorb
the part of the spectrum to which the cones are
sensitive and hence shield them. The special filter
lenses therefore reduce glare and facilitate adaptation
Clarlet F 540, F 560, F 580
E4
20-693 e-III/2009
to changing light.
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Seite 7
Clarlet F 540, F 560, F 580
Areas of use
For medical application in
retinitis pigmentosa or retinopathia pigmentosa
achromatopsia or rod monchromatism
diabetic retinopathy in advanced stages
Availability
Every Clarlet lens with the refractive index 1.5 is
also available as Clarlet F 60, F 80, F 90 and Clarlet
F 540, F 560, F 580
All coatings except for hard, Carat and Carat Filter
are possible
Special filter lenses at a glance
Clarlet F 60: reddish brown,
60% absorption at 600 nm
Clarlet F 80: brown, 80% absorption at 600 nm
Clarlet F 90: dark brown,
90% absorption at 600 nm
Special filter lenses from Carl Zeiss are tinted in a special dip dye bath
Clarlet F 540: bright orange,
50% absorption at 540 nm (cut-off filter)
Clarlet F 560: orange,
Clarlet F 580: red,
Lens type
Category as per
Solar UV absorption
DIN EN ISO 8980-3
Suitability for traffic and
driving at night and in twilight
as per DIN EN ISO 14889
20-693 e-III/2009
Clarlet F 60
Category 2
100% solar UV-B absorption
(57 - 82%)
100% solar UV-A absorption
Clarlet F 80
Category 3
Clarlet F 90
(82 - 92%)
Clarlet F 540
Category 1
Clarlet F 560
(20 - 57%)
Clarlet F 580
Category 2
(57 - 82%)
Not suitable for use in traffic!
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Seite 8
Clarlet F 451, F 452
The blue special filter lenses Clarlet F 451 and F 452
absorb selectively. They have been specially developed
for patients with blue cone monochromatism. They
of visible radiation from 550 nm to 650 nm.
Marked improvement in acuity
for patients with
blue cone monochromatism
Transmission (%)
100
90
80
70
60
50
40
30
20
10
0
display a transmission of less than 20% in the range
Wavelength (nm)
350 400 450 500 550 600 650 700 750
F 451
Blue cone monochromatism is a very rare eye disease
F 452
in which only the function of the rods and the blue
cones remains.
Transmission curves for Clarlet F 451 and F 452
The blue filter lens Clarlet F 451 and the dark blue
filter lens Clarlet F 452 can be used to achieve a
marked increase in contrast sensitivity, acuity and
twilight acuity.
Area of use
Blue cone monochromatism
Availability
Every Clarlet lens with the refractive index 1.5 is
also available as the special filter lenses Clarlet F
451 and F 452
All coatings except for hard, Carat and Carat Filter
are possible
Lens type
Category as per
Solar UV absorption
DIN EN ISO 8980-3
Suitability for traffic and
driving at night and in twilight
Category 2
Clarlet F 452
(57 - 82%)
>95% solar UV-A absorption
E6
20-693 e-III/2009
as per DIN EN ISO 14889
Clarlet F 451
15.04.2009
15:02 Uhr
Seite 9
Filter Clip
SCF 60, SCF 80, SCF 90
SCF 540, SCF 560, SCF 580
SCF 451, SCF 452
Filter clips are glazed with Clarlet® special filter lenses
made of CR 39 and are not prescription lenses. They
can be used with almost all prescription frames.
Patients are able to choose the optimum filter color by
testing and rating various filter lenses. The fitting set
for special filter lenses is ideal for this. You can find
more information on fitting sets in chapter D, page
D15.
20-693 e-III/2009
Each filter clip comes with its own case.
According to the Medical Device Directive,
special filter lenses are not suitable for driving
as per DIN EN ISO 14889.
E7
Kapitel_F_20-693_ENG.qxd
15.04.2009
14:22 Uhr
Seite 1
Tips, Info and Ordering
Magnifying visual devices are not self-explanatory.
This is why we are pleased to provide you with assistance – verbally or in writing – on these high-quality
ophthalmic products at any time:
Our seminars and training courses will provide you
with the knowledge you need for the fitting of low
vision devices.
Premium quality is guaranteed at all times for low
vision devices from Carl Zeiss – right from their
development to customer care. This is all verified by
our certification to ISO 9000.
If you have any questions on our products or on the
ordering procedure, please contact the following
addresses where you can also request the order forms
(cat. no. 01742 and 01742/GTX).
Carl Zeiss Vision GmbH
Turnstrasse 27
P. O. Box 18 65
D-73430 Aalen
D-73408 Aalen
Germany
Germany
Phone: +49 (0) 73 61/59 10
Fax: +49 (0) 73 61/59 14 88
Carl Zeiss Vision in the Intranet
www.vision.zeiss.de
optics@vision.zeiss.com
Zeiss Partner Network for customers with a password:
20-693 e-III/2009
www.zeiss.de/partner
F1

Head-worn Loupe KS

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