Imaging Systems

Programmable apodizer in incoherent imaging systems using a digital micromirror device

[+] Author Affiliations
Chu-Ming Cheng

National Chiao Tung University, Institute of Electro-Optical Engineering, Department of Photonics, Microelectronics and Information System Research Center, 1001 University Road, Hsinchu, 300 Taiwan

Jyh-Long Chern

National Chiao Tung University, Institute of Electro-Optical Engineering, Department of Photonics, Microelectronics and Information System Research Center, 1001 University Road, Hsinchu, 300 Taiwan

Opt. Eng. 49(2), 023201 (February 23, 2010). doi:10.1117/1.3314306
History: Received May 08, 2009; Revised October 28, 2009; Accepted December 18, 2009; Published February 23, 2010
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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.

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© 2010 Society of Photo-Optical Instrumentation Engineers

Citation

Chu-Ming Cheng and Jyh-Long Chern
"Programmable apodizer in incoherent imaging systems using a digital micromirror device", Opt. Eng. 49(2), 023201 (February 23, 2010). ; http://dx.doi.org/10.1117/1.3314306


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