
Figure 141: Diagram of the -x00w sensor's HDR mode
20.4.2 Description
Phase 0
During T1 all pixels are integrated until they reach the defined signal level of Knee Point 1.
♦
If one pixel reaches the level, the integration will be stopped.
♦
During T1 no pixel can reached a level higher than P1.
♦
•
Phase 1
During T2 all pixels are integrated until they reach the defined signal level of Knee Point 2.
♦
T2 is always smaller than T1 so that the percentage compared to the total exposure time is
lower.
♦
Thus, the signal increase during T2 is lower as during T1.
♦
The max. signal level of Knee Point 2 is higher than of Knee Point 1.
♦
•
Phase 2
During T2 all pixels are integrated until the possible saturation.
♦
T3 is always smaller than T2, so that the percentage compared to the total exposure time is
again lower here.
♦
Thus, the signal increase during T3 is lower as during T2.
♦
•
For this reason, darker pixels can be integrated during the complete integration time and the sensor reaches its
full sensitivity. Pixel's, which are limited at each Knee Points, lose a part of their integration time - even more,
if they are brighter.
mvBlueLYNX-X Technical Manual
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22 April 2016 Version - 1.49
MATRIX VISION GmbH
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