Dynamic Spatial Filter For Optical Signal Processing Using A Liquid Crystal Light Valve

William R. Mallory; H. Lee Task

doi:10.1117/12.932519

30 July 1982 Dynamic Spatial Filter For Optical Signal Processing Using A Liquid Crystal Light Valve

William R. Mallory, H. Lee Task

Proceedings Volume 0298, Real-Time Signal Processing IV; (1982) https://doi.org/10.1117/12.932519
Event: 25th Annual Technical Symposium, 1981, San Diego, United States

Abstract

A device is described which is capable of doing dynamic spatial filtering. The filter, which can be changed at TV frame rates, utilizes a liquid crystal light valve (LCLV) in a controlled-reflectivity mode. A filter pattern can be generated by a CRT or by other optical methods and imaged onto the LCLV. The LCLV is placed in the Fourier plane of an optical transform system. The dynamic spatial filter is described in detail, and current experimental results are given.

Citation Download Citation

William R. Mallory and H. Lee Task "Dynamic Spatial Filter For Optical Signal Processing Using A Liquid Crystal Light Valve", Proc. SPIE 0298, Real-Time Signal Processing IV, (30 July 1982); https://doi.org/10.1117/12.932519

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available