Accession Number:

ADD010949

Title:

Real-Time Optical Filtering Method with Improved Filtered Image Detection and Bandwidth Adjustment.

Descriptive Note:

Patent,

Corporate Author:

DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s):

Report Date:

1984-01-17

Pagination or Media Count:

7.0

Abstract:

This document pertains to a system for real-time coherent optical filtering of visual imagery which encompasses a laser and a set of lenses for transmitting a visual target image of an input, a Fabry-Perot interferometer for filtering the target image to produce a filtered target image at an output having a predetermined bandwidth of spatial frequency information, the improvements relate to the output being in the form of a low-light level video system capable of detecting the filtered image even when at a low level of luminance, and a laser adjustable in operating power between low and high levels and in operating wavelength within a wide range for adjusting the bandwidths of the interferometer between narrow and broad ranges. Author

Subject Categories:

  • Printing and Graphic Arts
  • Optical Detection and Detectors
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE