Active array, Optical Black region and non-microlensed region in CMOS sensor

by ManiAm   Last Updated February 13, 2018 11:18 AM

I came across this fascinating website that takes a very close look at a CMOS sensor. I want to make sure that I understand the optical black (OB) region, and the active pixel array. I marked these two regions in the following picture. I was wondering what the region in the edge (marked with question mark) is? Is that non-microlensed pixels mentioned in the article? If yes, then what is the purpose of non-microlensed pixels?

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