Hologram recording apparatus and hologram recording method

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

2005-02-15

2009-12-15

Lavarias, Arnel C (Department: 2872)

Optical: systems and elements

Holographic system or element

Having multiple object beam or diffuse object illumination

C359S010000, C359S011000

Reexamination Certificate

active

07633661

ABSTRACT:
A hologram recording apparatus includes a light source for irradiating coherent light, light separator for separating the coherent light into light for reference beam and light for signal beam, optical path changer for changing an optical path of each light separated by the light separator so that the reference beam and the signal beam may be irradiated simultaneously onto an optical recording medium, a spatial light modulator disposed in the optical path of the light for the signal beam for modulating the light for the signal beam in accordance with a supplied recording signal to create signal beam for recording a hologram, and diffused light irradiator for irradiating diffused light simultaneously with the reference beam at least onto an area of the optical recording medium where the reference beam is irradiated.

REFERENCES:
patent: 6281994 (2001-08-01), Horikoshi et al.
patent: 2004/0085600 (2004-05-01), Kim
patent: 10-340479 (1998-12-01), None
patent: 2000-211257 (2000-08-01), None
patent: 2000-263910 (2000-09-01), None

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