Hologram recording apparatus and hologram recording method

Details Hologram recording apparatus and hologram recording method Hologram recording apparatus and hologram recording method

2005-06-27

2010-12-14

Chang, Audrey Y (Department: 2872)

Optical: systems and elements

Holographic system or element

Using modulated or plural reference beams

C359S011000, C359S009000, C359S022000

Reexamination Certificate

active

07852538

ABSTRACT:
At the time of varying the angle of a scan mirror for varying the angle of incidence of a reference beam on a hologram recording material, the angle of a slit is also varied in conjunction, whereby the beam diameter of the reference beam is varied by the slit so that the irradiation range on the hologram recording material will be constant without being varied according to the variation in the incidence angle of the reference beam. This ensures that the area of irradiation of the hologram recording material with the reference beam can always be kept constant, even when the incidence angle of the reference beam is varied at the time of recording holograms by the angle multiplex recording system.

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Japanese Office Action Application No. 2004-265078 issued May 7, 2010; 2 pgs.

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