Tech-On: Fraunhofer Institute for Applied Optics and Precision Engineering exhibited a "super-slim camera" with 300μm-thick optical system at Nano Tech 2011.
The camera has 150 x 100 pixel array and based on the compound eyes of insects. The view angle of the camera is 80° x 65°. A thin glass part is placed between the lens and the image sensor. The total thickness of the lens, glass part, spacer, etc is 300μm.
The possible applications for the camera are in various sensors and monitoring devices as well as for medical purposes.