Scanning apparatus using holographic beam deflector

Details Scanning apparatus using holographic beam deflector Scanning apparatus using holographic beam deflector

1975-12-23

1977-05-31

Corbin, John K.

350 35, G02B 2717

Patent

active

040266303

ABSTRACT:
An omnidirectional scanning apparatus which generates a multiple cross scanning pattern is described. The scanning apparatus comprises a flat ring-shaped hologram. The hologram disk is rotated about its axis as a small area is illuminated by a collimated light source, such as a laser, to produce a series of reconstructed beams which scan segments of a circle. Optical means is provided to intercept the reconstructed beams and reflect them to a scanning window where the segments produce a multiple cross scanning pattern. In a specific embodiment the holograms recorded are reconstructed as segments of concentric circles and the optical means comprises a stationary mirror for each direction of scan across the scanning window.

REFERENCES:
patent: 3614193 (1971-10-01), Beiser
patent: 3703724 (1972-11-01), Thomas
patent: 3721487 (1973-03-01), Pieuchard et al.
patent: 3795768 (1974-03-01), Locke
patent: 3907197 (1975-09-01), Poschl et al.
patent: 3916158 (1975-10-01), San Sone et al.
patent: 3940202 (1976-02-01), Kato et al.

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