Dynamic binary fourier filtered imaging system

Details Dynamic binary fourier filtered imaging system Dynamic binary fourier filtered imaging system

1980-05-06

1983-01-25

Corbin, John K.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250550, G02B 518

Patent

active

043700241

ABSTRACT:
An apparatus for altering the spatial frequency content of recorded patterns by selectively filtering the patterns after they are transformed into the Fourier domain. The filter characteristics are spatially and temporally variable while the real space image of the altered pattern is being observed. A laser beam is projected through a transparency containing the pattern. The patterned beam, with diffraction interference effects, is transformed to the Fourier domain at the surface of a liquid crystal light valve responsive to a spatially and temporally varying light projector. The projector activated regions reflect areas of the Fourier domain beam, while other areas are absorbed or incoherently reflected. A beam splitter redirects a portion of the reflected beam to a continuously observable image plane after transformation back into real space.

REFERENCES:
patent: 4207370 (1980-06-01), Liu
Bleha, W. P. et al., "Application of the Liquid Crystal Light Valve to Real-Time Optical Data Processing", Optical Engineering, vol. 17, No. 4, Jul.-Aug. 1978, pp. 371-384.
Jenkins et al., Fundamentals of Optics, Third Edition, p. 491, McGraw-Hill, N.Y., 1957.

Affiliated with

Also associated with

Rating

Dynamic binary fourier filtered imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic binary fourier filtered imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic binary fourier filtered imaging system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1621400