Hologram recording and reproduction apparatus, hologram...

Details Hologram recording and reproduction apparatus, hologram... Hologram recording and reproduction apparatus, hologram...

2007-10-02

2007-10-02

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

For producing or reconstructing images from multiple holograms

C359S025000, C369S103000, C365S125000, C365S216000

Reexamination Certificate

active

10944937

ABSTRACT:
An apparatus and method is disclosed wherein, even if the multiplicity in multiplexing of recording data is increased, positioning of data upon reproduction can be performed with a high degree of accuracy without decreasing the recording capacity. Interference fringes generated by interference of a light beam spatially optically modulated by a spatial light modulator on which a marker data page is displayed with reference light are recorded at a recording spot on a hologram recording medium. Similarly, interference fringes corresponding to recording data page are recorded at another recording spot on the hologram recording medium. The multiplicity of such marker data pages upon recording is set to a value with which recognition of markers upon reproduction can be performed with a high degree of accuracy so that, even if the multiplicity of the data pages is raised, positioning information of high accuracy can be obtained. Consequently, positioning of data included in the data page can be performed with a high degree of accuracy, and reproduction data of high quality can be obtained.

REFERENCES:
patent: 4149269 (1979-04-01), Abe et al.
patent: 6064586 (2000-05-01), Snyder et al.
patent: 6888785 (2005-05-01), Morrison
patent: WO99/57719 (1999-11-01), None
patent: WO 01/29835 (2001-04-01), None
patent: WO 01/57859 (2001-08-01), None
R. Deml, et al., “Large Optical Memories: Some Practical Considerations”, Annual Meeting of the Optical Society of America, XP-001208357, 1971, p. 19.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3849002