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Service Instructions VISUCAM
lite
Issue: 22.09.2003
SM-30-4044-A1-en
Replaces issue:
Page
33
of 41
Test and adjustment of mechanical and electrical functions
Testing focus drive
Test Focus drive for +25dpt
•
Focus the illumination ring to the first area by moving the
VISUCAM
lite
camera by hand. You should
see the structure off the light guide inside
the illuminated ring.
•
Focus with focus drive to the area with the
vertical lines and expect a sharp picture at
the screen.
Note:
The distance between the front area and
the back area is 40mm and it should be
possible to focus in this area.
Test Focus drive for –25dpt
•
Cover front lens with dust cap.
•
Adjust the brightness of illumination in such a way
you can see a picture at the screen.
•
Focus to the inside of the dust cap.
⇒
⇒
⇒
⇒
It should be possible to get a sharp picture.
Testing grabber function and quality of the sensors
•
Use the VISUCAM
lite
in a dimmed area and switch off the room light.
•
Put the gray filter in between the light guide and the halogen lamp.
•
Use capture mode.
•
Focus to the gray field of the color table.
•
Setup Angle 45°
Fluo mode, barrier and exciter filter
b/w sensor
•
Select maximum brightness of the halogen lamp
•
Inspect the image on screen. No lines only
snow or noise should be visible.
•
Snap the image and save it to a test patient to
compare it later time.
Grey filter
Summary of Contents for VISUCAM lite
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