PYTHON25K Datasheet, PDF (9/87 Pages) ON Semiconductor – PYTHON 25K/16K/12K/10K Global Shutter CMOS Image Sensors

NOIP1SN025KA, NOIP1SN016KA, NOIP1SN012KA, NOIP1SN010KA
The purpose of the shifted microlenses is to improve the
uniformity of photoresponse when camera lenses with a
finite exit pupil distance are used. In the standard version of
PYTHONxK, the CRA varies nearly linearly with distance
from the center as illustrated in Figure 8, with a corner CRA
of approximately 10.6 degrees (for 5120 x 5120 resolution).
This edge CRA is matching a lens with exit pupil distance
of ∼85 mm.
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
f_X = 0
f_Y = 0
0.2
0.1
0
−30
−20
−10
0
10
20
30
Incidence Angle f_X, f_Y
[degrees deviation from normal]
Note that the photoresponse peaks near normal incidence for center pixels.
Figure 5. Center Pixel Photoresponse to a Fixed Optical Power with Incidence Angle Varied Along f_X and f_Y
Figure 6. Definition of Angles used in Figure 5.
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