System for copying multiple holograms

Details System for copying multiple holograms System for copying multiple holograms

1994-08-31

1996-03-12

Lerner, Martin

Optical: systems and elements

Holographic system or element

Copying by holographic means

359 22, 359 24, G03H 120, G03H 126, G03H 128

Patent

active

054991188

ABSTRACT:
A hologram copying system that includes a first reconstruction beam, a second reconstruction beam that is incoherent with respect to the first reconstruction beam, a first master hologram responsive to the first reconstruction beam for producing a first diffracted beam, a second master hologram responsive to the second reconstruction beam for producing a second diffracted beam, and a holographic recording layer responsive to the first and second reconstruction beams and the first and second diffracted beams, whereby a first hologram is formed by interference of the first reconstruction beam and the first diffracted beam, and a second hologram is formed by interference of the second reconstruction beam and the second diffracted beam.

REFERENCES:
patent: 3758186 (1973-09-01), Brumm
patent: 4984856 (1991-01-01), Moss et al.
patent: 5327266 (1994-07-01), Mulder et al.

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