Hologram recording/reproducing apparatus and hologram...

Details Hologram recording/reproducing apparatus and hologram... Hologram recording/reproducing apparatus and hologram...

2007-02-27

2007-02-27

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

Using modulated or plural reference beams

C359S010000, C359S024000, C359S025000, C369S103000

Reexamination Certificate

active

10934443

ABSTRACT:
This invention provides a hologram recording apparatus for recording an interference fringe, generated by interference of a first light beam subjected to spatial light modulation by recording data with a second light beam, in a recording area of a hologram recording medium, the hologram recording apparatus including: a random phase body for randomizing the wave front of the second light beam, and a multiplex recording control unit for recording the interference fringe of the first light beam and the second light beam in the same recording area of the hologram recording medium each time the random phase body is rotated.

REFERENCES:
patent: 5943145 (1999-08-01), Curtis et al.
patent: 6697180 (2004-02-01), Wilson et al.

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