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7.5
Video settings
7.5.1
White light video settings
10
9
The default values for Brightness, Contrast and Gamma are defined
to result in good differentiation of bright and dark image areas.
Values below 50 % define a decrease, above 50 % an increase, the
new values apply and will adapt the image immediately.
If adaptation is required, each value can be adjusted with the Image
Balance bars (2–8) in the user settings.
Although the Default for Red, Green and Blue shall produce a
neutral color video image with a natural color saturation, the color
balance and the saturation of the video image can be adjusted in
three different ways for each of the available modes: White light,
GLOW800, FL400 and FL560 - by toggling from mode to mode with
button (1):
To re-activate the default/company reset values press the
X
X
Default button (9).
To re-adjust the Color Balance to a reference standard, place a
X
X
white object below the microscope which covers the whole field
of view, adjust the illumination intensity to the required level
and press the Auto White Balance button (10).
To adapt the Color Balance to specific needs, each color can be
X
X
attenuated or intensified with the color bars (5, 6, 7; values
below 50 % define a decrease, above 50 % an increase, the new
values apply and will adapt the image immediately).
To check the color balance, the color areas on the front and back
side of the GLOW800 testcard can be used by comparing the
original optical image with the video display image.
1
2
3
4
Image of GLOW800 test card – front
5
6
7
8
Image of GLOW800 test card – back
GLOW800 / Ref. 10 747 241 / Version 04
Preparation before surgery
21
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