Ultrathin four-reflection imager.
We present the design and experimental demonstration of an ultrathin four-reflection imager. The F/1.15 prototype imager achieves a focal length of 18.6 mm in a track length of just 5.5 mm, providing a 17 degrees field of view over 1.92 megapixels of a color image sensor with 3 microm pixels. We also present the design and experimental results of pupil-phase encoding and postprocessing, which were applied to extend the depth of field and compensate a small amount of axial chromatic aberration present in the four-reflection imager prototype.
Tremblay
Eric J
EJ
Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA. etremblay@ucsd.edu
Stack
Ronald A
RA
Morrison
Rick L
RL
Karp
Jason H
JH
Ford
Joseph E
JE