Philips LP2PB201CS - Manual (Page 20)

When calibration has been completed, you will be asked to save the calibration
results: if you choose
Cancel, the calibration will be discarded; if you want to save
just click OK and then assign a name to the new correction file (default extension is
.BRG).
Global uniformity
STEP 1
From the
uniformity menu of the 21XLP -2 application window select Execute
Global Uniformity.
The screen will turn into a full red page pattern. Put the Light Probe at the center of
the screen and click OK.
At this point, the program will start increasing/decreasing step by step the correc­
tion value for the red gun and for each value it will measure the light output respon­
se. The purpose of this operation is to obtain a correlation between light output and
correction increment.
I m O t E: During measurements you may notice ‘flashing’ on the screen. This is sim­
ply due to the high updating speed of the correction system._________________________
The program will then repeat the above described operation for the green and blue
guns.
STEP 2
After verifying the light output response for each of the RGB guns, the screen will
turn into a full white page again. Put the Light Probe at the screen center and click
OK; the program will measure the absolute value at this point and will keep it as a
target value for the calibration.
STEPS
Next, awhite page pattern divided into 25 areas will appear and you will be promp­
ted step by step to put the Light Probe on the whole screen area, starting from Area
1 to Area 25.
STEP 5
When calibration has been completed, you will be asked to save the calibration
results: if you choose cancel, the calibration will be discarded; if you want to save
just click OK and then assign a name to the new correction file (default extension is
.BRS) .
White uniformity calibration 13