Abstract

A high-resolution, optically-addressed, variable-gamma spatial light modulator would be very useful for general-purpose, real-time optical processing. In this paper, we describe how the standard and Fabry-Perot Microchannel Spatial Light Modulators (MSLM)^1-3 can be modified and operated to achieve a wide range of gamma similar to that for phototgraphic emulsions (see Fig. 1). Such a variable-gamma device will be applicable to both linear (low gamma) and nonlinear (high gamma) optical processing. Preliminary image processing results are presented.

© 1987 Optical Society of America