Cylindrical Liquid Crystal Lens and Its Applications in Optical Pattern Correlation Systems
- 1 May 1995
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 34 (5R), 2392-2395
- https://doi.org/10.1143/jjap.34.2392
Abstract
The optical characteristics of a cylindrical liquid crystal (LC) lens are investigated with voltages applied to LC cells. We show that the focusing performance of cylindrical LC lenses, such as focal length, can be varied by voltage application. With this kind of cylindrical LC lens, optical correlation architectures are achieved for the first time using a holographic matched spatial filter. The influence on correlation results of different reference light distributions from a LC lens under various applied voltages is also discussed.Keywords
This publication has 9 references indexed in Scilit:
- Optical Performance of Liquid Crystal Cells with Asymmetric Slit-Patterned Electrodes in Various Applied Field ConfigurationsJapanese Journal of Applied Physics, 1994
- Optical pattern recognition system based on a winner-take-all model of a neural networkOptical Engineering, 1993
- Optical face recognition system (Invited Paper)Published by SPIE-Intl Soc Optical Eng ,1992
- Using liquid-crystal devices as input and filter SLMsPublished by SPIE-Intl Soc Optical Eng ,1992
- Feature-based correlation filters for distortion invariancePublished by SPIE-Intl Soc Optical Eng ,1992
- Experimental Demonstration of Optical Three-Layer Neural NetworkJapanese Journal of Applied Physics, 1990
- A liquid crystal microlens obtained with a non-uniform electric fieldLiquid Crystals, 1989
- What classical optics can do for the digital optical computerApplied Optics, 1986
- The PROM Theory And Applications For The Pockels Readout Optical ModulatorOptical Engineering, 1978