Extended Depth of Field through Unbalanced OPD

Kaiqin Chu; Nicholas George; Wanli Chi

doi:10.1364/FIO.2008.FThQ2

Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing
OSA Technical Digest (CD) (Optica Publishing Group, 2008),
paper FThQ2
•https://doi.org/10.1364/FIO.2008.FThQ2

Extended Depth of Field through Unbalanced OPD

Kaiqin Chu, Nicholas George, and Wanli Chi

Frontiers in Optics 2008

Rochester, New York United States
19–23 October 2008
ISBN: 978-1-55752-861-2

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Imaging and Detection (FThQ)

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K. Chu, N. George, and W. Chi, "Extended Depth of Field through Unbalanced OPD," in Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, OSA Technical Digest (CD) (Optica Publishing Group, 2008), paper FThQ2.

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Abstract

The depth of field of a conventional camera is extended simply by inserting an annular glass ring in front of the lens. The operating principle is explained and experimental results are shown.

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