Hologram recording apparatus, hologram recording method, and...

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

2006-08-01

2006-08-01

Lavarias, Arnel C. (Department: 2872)

Optical: systems and elements

Holographic system or element

Hardware for producing a hologram

C359S021000, C359S030000, C359S569000

Reexamination Certificate

active

07085028

ABSTRACT:
A hologram recording apparatus, a hologram recording method and a hologram recording medium reduce noise components generated by a phase modulation type spatial light modulator, thus permitting improved integrity of data to be achieved. A light beam whose diffraction state has been controlled by a diffraction control element is condensed on a hologram recording medium. With this arrangement, a predetermined diffracted light component is removed from a diffracted light beam emergent from the diffraction control element when recording information, which is based on the diffraction state controlled by the diffraction control element, in a hologram recording medium. Thus, noise components when information is recorded can be reduced.

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P. Hariharan, ‘Optical Holography—Principles, techniques, and applications’, Cambridge University Press, Cambridge, 1996, pp. 85, 114-115.

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