Holographic exposure system to reduce spurious hologram noise

Details Holographic exposure system to reduce spurious hologram noise Holographic exposure system to reduce spurious hologram noise

G - Physics

03

H

88/0.14

G03H 1/04 (2006.01) G03H 1/00 (2006.01) G03H 1/20 (2006.01) G03H 1/32 (2006.01)

Patent

CA 2022016

HOLOGRAPHIC EXPOSURE SYSTEM TO REDUCE SPURIOUS HOLOGRAM NOISE ABSTRACT OF THE DISCLOSURE A method and apparatus of exposing a hologram to reduce spurious noise holograms. The exposure light source is moved relative to a recording module within predetermined distances that will ensure a blurring of the fringes of a noise hologram that is formed at a distance from a primary hologram while substantially not affecting the primary hologram. The controlled relative movement of the exposure source and the recording module within predetermined limits provide a considerable improvement in reducing the efficiency of spurious noise holograms.

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