BQ GA 04050 def.pmd - Haag-Streit USA
BQ GA 04050 def.pmd - Haag-Streit USA
BQ GA 04050 def.pmd - Haag-Streit USA
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3 Description of equipment<br />
3.1 Illumination unit<br />
Lamp bulb<br />
The tungsten lamp bulb is centered ex-works to obtain an<br />
optimal illumination. The 'H-S' marking on the centering basecap<br />
indicates a genuine HAAG-STREIT spare part.<br />
The light beam from the pre-centered bulb passes through the<br />
condenser, the slit diaphragm and the illumination lens, before<br />
it is directed to the patient's eye by the oblique mirror.<br />
The following can be mounted in the path of the light beam of<br />
the illumination unit<br />
Filters (9)<br />
36 Open aperture<br />
38 Grey filter (10 %)<br />
39 Redfree filter<br />
40 Empty space for accommodating an additional filter<br />
Due to European law a heat absorption filter<br />
is permanently mounted<br />
Apertures (21) operating (22)<br />
41 Fixation star*<br />
42 Apertures producing areas of 8, 5, 3, 2, 1 and 0.2 mm ø<br />
43 Indication of wedge-shaped diaphragm for continuous<br />
slit length adjustment in mm<br />
44 Blue filter<br />
* The target with the fixation star is particularly suitable for<br />
examining the fixation in amblyopia.<br />
3.2 Stereo microscope<br />
45 Front lens<br />
f105 mm angle of optical axis 13°<br />
12 Turning knob with display of selected magnification<br />
46 Magnification changer 5 step<br />
(Galilean system)<br />
24 Knurled ring bayonet joint<br />
25 Binocular tube f132 for convergent viewing range of<br />
pupillary distance 52-78 mm<br />
47 Eyepiece 12.5 x<br />
Diameter of field 16 mm, sliding eyeguard (for spectacle<br />
wearers also), diopter adjustable from + 8 to - 8 D<br />
Total magnification 6.3 x 10 x 16 x 25 x 40 x<br />
Object image section ø in mm 32.0 20.0 12.7 8.0 5.1<br />
1500.7001000.<strong>04050</strong><br />
21<br />
9<br />
22<br />
© HAAG-STREIT AG, CH-3098 Koeniz, Switzerland<br />
36 38 39 40<br />
S 8 5 3 2 1<br />
0,2<br />
41 42 43 44<br />
45 12 46 24 25 47<br />
4<br />
'H-S'<br />
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