Optical Computing With Variable Grating Mode Liquid Crystal Devices

B. H. Soffer; D Boswell; A. M. Lackner; P. Chavel; A. A. Sawchuk,; T C. Strand; A. R. Tanguay Jr.

doi:10.1117/12.958881

22 August 1980 Optical Computing With Variable Grating Mode Liquid Crystal Devices

B. H. Soffer, D Boswell, A. M. Lackner, P. Chavel, A. A. Sawchuk,, T C. Strand, A. R. Tanguay Jr.

Proceedings Volume 0232, 1980 Intl Optical Computing Conf II; (1980) https://doi.org/10.1117/12.958881
Event: 1980 Technical Symposium East, 1980, Washington, D.C., United States

Abstract

A liquid crystal device that performs a two-dimensional intensity-to-spatial frequency conversion has been developed for use as an optical transducer. When such a device is used as the input transducer in an optical filtering arrangement, image intensity levels can be easily manipulated via Fourier plane filters. This variable input intensity-output intensity transfer function has numerous potential applications in image processing. Implementation of a variable level slice operation is discussed and experimental results presented. The VGM LCLV device is also particularly well adapted to performing binary logic operations on 2-D images. This application is discussed, and results demonstrating the implementation of common logic operations are presented.

Citation Download Citation

B. H. Soffer, D Boswell, A. M. Lackner, P. Chavel, A. A. Sawchuk,, T C. Strand, and A. R. Tanguay Jr. "Optical Computing With Variable Grating Mode Liquid Crystal Devices", Proc. SPIE 0232, 1980 Intl Optical Computing Conf II, (22 August 1980); https://doi.org/10.1117/12.958881

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