6.
Adjustment
6.4. IRIS ADJ
NOTE
•
Adjust the close time of the equipment shutter of each camera.
•
When using the multi-layer iris, there might be deviation in the aperture of each layer.
Therefore, try to reduce the deviation of the aperture of each layer by adjusting each aperture set.
<Adjustment method>
1) Prepare AE TESTER which is adjusted by
LV 12
.
2) Install AE TESTER on camera.
•
Brightness of the light box is
12 LV.
•
The color temperature of the light box is
3300K.
Figure 6.3
3) Install microSD card with program files and then, turn the camera on.
4) Adjustment is made automatically.
a) Set an ideal AV value for each iris layer.
b) Set the exposure time and the gain value and change the iris layer and measure the preview G value for each iris layer.
c) 2 conditions is satisfied, if the preview G value for the big iris layer is bigger than that for the small one. If not, NG.
d) Determine if A V value calculated for each iris is within the iris adjustment range. If it is, Preview G value
is satisfied. If not, NG.
•
If the 2 conditions are satisfied, set the iris value to be actually used using the difference between the AV
values of the iris layers calculated.
e) Refer to EEPROM WRITE information to write the adjusted value on EEPROM.
f) Refer to CARD WRITE information to write the adjusted value on a data file.
5) Once the adjustment is completed, the camera is automatically off.
<Adjustment result>
On the memory card, open and check if a CSV file was generated from the adjustment.
<Restriction>
If the capacity of CSV file is more than 30KB, clear all of the previous data and then, record
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