Abstract

A logarithmic nonlinearity in the transmittance-versus-exposure curve of a photographic material can greatly simplify holographic fabrication of inverse filters. We present here two filter-production methods utilizing this nonlinearity, which produce relatively high-dynamic-range inverse filters. Confirming computer simulations and coherent-optical experiments are presented.

© 1978 Optical Society of America

Color-sensitive spatial filters

Nai K. Shi
Opt. Lett. 3(3) 85-87 (1978)

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