Optical devices for forming image and reference beams with a pol

Details Optical devices for forming image and reference beams with a pol Optical devices for forming image and reference beams with a pol

1988-04-11

1989-06-06

Corbin, John K.

350 364, 350394, G02F 101, G03H 104, G02B 2728

Patent

active

048366587

ABSTRACT:
An optical device for use in forming a holographic record, comprising a polarizing beam splitter and a spatial light modulator arranged to derive from an incident beam a focussed image beam and a collimated reference beam, the device being of unitary construction and providing substantially equal path-lengths for the image and reference beams.

REFERENCES:
patent: 4650286 (1987-03-01), Koda et al.

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