G - Physics – 02 – B
Patent
G - Physics
02
B
88/0.15, 88/96.2
G02B 5/32 (2006.01) G02B 26/10 (2006.01) G02F 1/29 (2006.01) G06K 7/10 (2006.01)
Patent
CA 1068141
SCANNING APPARATUS USING HOLOGRAPHIC BEAM DEFLECTOR Abstract of the Disclosure 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 con- centric circles and the optical means comprises a stationary mirror for each direction of scan across the scanning window.
268097
International Business Machines Corporation
Na
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