Ambient Light Sensors

http://image-sensors-world.blogspot.com/2018/04/iphone-8-ambient-light-sensor.html

LIDAR

Optical Mouse

http://spritesmods.com/?art=mouseeye

https://jorgegarciadev.gitlab.io/post/getting_images_form_an_optical_mouses_sensor/

Scientific

Fluorescence Lifetime Imaging Microscopy

Fluorescence Speckle Microscopy