Relaxing the alignment and fabrication tolerances of thin annular folded imaging systems using wavefront coding |
| |
Authors: | Tremblay Eric J Rutkowski Joel Tamayo Inga Silveira Paulo E X Stack Ronald A Morrison Rick L Neifeld Mark A Fainman Yeshaiyahu Ford Joseph E |
| |
Affiliation: | Department of Electrical and Computer Engineering, University of California San Diego, La Jolla, California 92093, USA. etremblay@ucsd.edu |
| |
Abstract: | Annular folded imagers can be up to 10x thinner than corresponding full-aperture imagers, but have tight fabrication tolerances and relatively shallow depth of focus. Wavefront coding, the use of specialized optics with postdetection signal processing, has been used to improve the depth of focus in full-aperture imaging systems. Here we explore the application of wavefront coding to annular folded optics. We compare the design and experimental results for an imaging system with a 38 mm focal length and just 5 mm total track. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|