Hologram recording apparatus and hologram reconstruction...

Details Hologram recording apparatus and hologram reconstruction... Hologram recording apparatus and hologram reconstruction...

2007-03-09

2011-12-06

Chang, Audrey Y (Department: 2872)

Optical: systems and elements

Holographic system or element

Using modulated or plural reference beams

C359S021000, C359S035000

Reexamination Certificate

active

08072660

ABSTRACT:
A hologram recording apparatus includes a signal-beam spatial light modulating section, a reference-beam spatial light modulating section, and a control unit. A signal beam pattern generates a signal beam. A reference beam pattern generates a reference beam. The control unit controls the shapes of the two beam patterns. A data-recording signal beam pattern is displayed on the signal-beam spatial light modulating section and a data-recording reference beam pattern is displayed on the reference-beam spatial light modulating section so that a data-recording hologram is formed in a predetermined area of a holographic recording medium. An encryption signal beam pattern for encrypting the data-recording hologram is displayed on the signal-beam spatial light modulating section and an encryption reference beam pattern is displayed on the reference-beam spatial light modulating section so that an encryption hologram is formed in the same area as the predetermined area of the holographic recording medium.

REFERENCES:
patent: 5940514 (1999-08-01), Heanue et al.
patent: 7088482 (2006-08-01), Edwards
patent: SHO 51-007946 (1976-01-01), None
patent: 2000-284672 (2000-10-01), None
patent: 2004-226821 (2004-08-01), None
patent: 2004/102542 (2004-11-01), None
Japanese Office Action issued on May 6, 2010, corresponding to Japanese Patent Appin. No. 2006-134436.

Affiliated with

Also associated with

Rating

Hologram recording apparatus and hologram reconstruction... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hologram recording apparatus and hologram reconstruction..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hologram recording apparatus and hologram reconstruction... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4300376