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Optical Engineering

Programmable apodizer in incoherent imaging systems using a digital micromirror device
Author(s): Chu-Ming Cheng; Jyh-Long Chern
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Paper Abstract

We propose a programmable apodizer using a digital micromirror device and the total-internal-reflection prism subsystem for incoherent imaging systems. It is shown that the proposed programmable apodizer can extend the depth of focus with the specific shaped aperture generated by the digital micromirror device. With a scale ratio of K0.05, one can achieve almost the same level of imaging quality as provided by the conventional annular apodizer, where K represents the ratio between the integer multiple of the micromirror's square pixel size and the diameter of the effective aperture stop.

Paper Details

Date Published: 1 February 2010
PDF: 7 pages
Opt. Eng. 49(2) 023201 doi: 10.1117/1.3314306
Published in: Optical Engineering Volume 49, Issue 2
Show Author Affiliations
Chu-Ming Cheng, National Chiao Tung Univ. (Taiwan)
Jyh-Long Chern, National Chiao Tung Univ. (Taiwan)

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