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Optical Engineering

Digital holographic recording and reconstruction of large scale objects for metrology and display
Author(s): Jan Mundt; Thomas M. Kreis
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Paper Abstract

Digital holography captures holograms by charge-coupled device or complementary metal-oxide semiconductor cameras, which have a spatial resolution still not reaching that of silver-halide holofilms. Thus, due to the sampling theorem, the angle between the reference and object wave is limited. Only fields coming from small objects, objects far away, or optically reduced fields can be recorded. Here we investigate optical reduction by a system of lenses, and show that a system of two concave lenses results in a drastic reduction of the object-target distance, while the effect of using more lenses is insignificant. Experimental results obtained with Fresnel and lensless Fourier-transform geometry are presented, and implications on holographic interferometric metrology as well as on holographic 3-D television are given.

Paper Details

Date Published: 1 December 2010
PDF: 6 pages
Opt. Eng. 49(12) 125801 doi: 10.1117/1.3524238
Published in: Optical Engineering Volume 49, Issue 12
Show Author Affiliations
Jan Mundt, Bremer Institut für angewandte Strahltechnik GmbH (Germany)
Thomas M. Kreis, Bremer Institut für angewandte Strahltechnik GmbH (Germany)


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