Unknown CMOS image sensor, probably OmniVision, in a glass chip-scale package. The multiple layers of the package are visible, as are the solder balls below it.
Package size is about 4x4.5 mm with 5x6 balls (presumably 30 contacts). Resolution is 640x480, active area 2.3x2.9 mm, which suggests 1/5" OF. The PAS6311LT is used in the reference design of the companion controller IC, but is 1/6" with a smaller package, but otherwise matches this sensor quite well.
<a href="//commons.wikimedia.org/wiki/User:Phiarc" title="User:Phiarc">Phiarc</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>