9
DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
© HAAG‑STREIT AG, 3098 Koeniz, Switzerland ‑ HS‑Doc. no. 1500.7220589‑04200 – 2019 – 05
5.4 Setting the filters & diaphragms
a. Open
b.
Grey filter (10%)
c.
Red removal filter
d.
Reserve opening for filter of choice ø15 mm (0 / -0.2), thickness 2.5 mm
e.
Fixation star (predominantly used for fixation examination of cross-eyed children
with amblyopia)
f.
Apertures of 8, 5, 3, 2, 1 and 0.2 mm ø
g. Display of slit length adjustment from 1 to 14 mm
h.
Blue filter
(a)
(e)
(f)
(g)
(h)
(b)
(c)
(d)
5.5 Fixation star
•
Turning the diaphragm disc to the left stop switches on the fixation star
and the 'S' symbol appears in the viewing window. In some examina-
tions of the fundus, this star is projected onto the ocular fundus and is
also visible to the patient, who is asked to focus on the center hole of
the star. This shows the examiner the point where the patient's vision is
most focused.
•
A typical use of the fixation star is close to the macula during laser tre
-
atment. The projection of the fixation star can also be used to identify
microstrabismus. The fixation star is usually used with upstream red re
-
moval filter.
5.6 Microscope and eyepiece
40. Front lens
41.
Rotary knob displaying the set magnification
42.
5-level magnification changer (Galilei system)
43. Knurled ring bayonet joint
44. Binocular tube with convergent insight, pupil di-
stance adjustable 52 – 78 mm
45.
Eyepiece 12.5 × / field of vision ø 16 mm
46. Index (white point)
47. Knurled ring with diopter scale for setting the
refraction of the examiner (± 7 D)
48. Sliding occluder (for people who wear glasses)
40 41 42 43
44
45 46 47 48
6. Decommissioning
The LED illumination can be switched off with the illumination controls. The pow-
er supply remains switched on during this process and the switch lights up green.
To switch off the system completely, the rocker switch must be set to position 0 =
'OFF'. This creates a two-pole isolation from the mains.
NOTE!
Disconnect the power supply from the mains if you do not intend to use
it for an extended period of time.
7 Technical data
7.1 Slit illumination
NOTE!
Detailed information regarding the radiation can be provided
on request.
Spectral range slit illumination
400 – 750 nm
Spectral range background
illumination
400 – 750 nm
Slit image width
0 – 14 mm continuous
Slit image length
1 – 14 mm continuous
Illumination field circle
ø 8 / 5 / 3 / 2 / 1 / 0.2 mm
Test mark
With fixation star
01-IFU_BQ900-7220589-04200_eng.indd 9
07.06.2019 11:30:45
