BQ GA 04050 def.pmd - Haag-Streit USA

3 Description of equipment
3.1 Illumination unit
Lamp bulb
The tungsten lamp bulb is centered ex-works to obtain an
optimal illumination. The 'H-S' marking on the centering basecap
indicates a genuine HAAG-STREIT spare part.
The light beam from the pre-centered bulb passes through the
condenser, the slit diaphragm and the illumination lens, before
it is directed to the patient's eye by the oblique mirror.
The following can be mounted in the path of the light beam of
the illumination unit
Filters (9)
36 Open aperture
38 Grey filter (10 %)
39 Redfree filter
40 Empty space for accommodating an additional filter
Due to European law a heat absorption filter
is permanently mounted
Apertures (21) operating (22)
41 Fixation star*
42 Apertures producing areas of 8, 5, 3, 2, 1 and 0.2 mm ø
43 Indication of wedge-shaped diaphragm for continuous
slit length adjustment in mm
44 Blue filter
* The target with the fixation star is particularly suitable for
examining the fixation in amblyopia.
3.2 Stereo microscope
45 Front lens
f105 mm angle of optical axis 13°
12 Turning knob with display of selected magnification
46 Magnification changer 5 step
(Galilean system)
24 Knurled ring bayonet joint
25 Binocular tube f132 for convergent viewing range of
pupillary distance 52-78 mm
47 Eyepiece 12.5 x
Diameter of field 16 mm, sliding eyeguard (for spectacle
wearers also), diopter adjustable from + 8 to - 8 D
Total magnification 6.3 x 10 x 16 x 25 x 40 x
Object image section ø in mm 32.0 20.0 12.7 8.0 5.1
1500.7001000.04050
21
9
22
© HAAG-STREIT AG, CH-3098 Koeniz, Switzerland
36 38 39 40
S 8 5 3 2 1
0,2
41 42 43 44
45 12 46 24 25 47
4
'H-S'
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