Fourier transform lens assembly

Details Fourier transform lens assembly Fourier transform lens assembly

1994-10-11

1996-06-11

Dzierzynski, Paul M.

Optical: systems and elements

Lens

Multiple component lenses

359786, 359787, 359788, 359809, G02B 962

Patent

active

055261914

ABSTRACT:
A Fourier transform lens assembly suited for use in an optical information processor includes a first lens group having a positive power, a second lens group having a negative power disposed on one side of the first lens group, and a third lens group having a positive power disposed on the side opposite to the first lens group with respect to the second lens group. The distance between a front focal plane and a back focal plane of the Fourier transform lens assembly is less than two times a focal length of the Fourier transform lens assembly.

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SU-1392-536A Abstract: Soviet, Mosc. Eng. Geodsky, "Coherent Spectrum Analyser Fourier Lens" Apr. 30, 1988, Derwent Publications, Ltd., London.
Abstract: Japan, Mitsubishi Denki et al., Apr. 22, 1983, Patent Abstracts of Japan, vol. 7, No. 96 (p. 193) & JP-A-58-21716.

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