Holographic recording apparatus and method for recording...

Details Holographic recording apparatus and method for recording... Holographic recording apparatus and method for recording...

2007-08-07

2007-08-07

Amari, Alessandro (Department: 2872)

Optical: systems and elements

Holographic system or element

For producing or reconstructing images from multiple holograms

C369S116000

Reexamination Certificate

active

11239705

ABSTRACT:
A hologram recording apparatus for carrying out holographic recording by emitting a signal beam and a reference beam onto a holographic recording medium includes a laser light source configured to output a pulsed laser beam, a splitter configured to split the laser beam into a signal beam and a reference beam, a spatial light modulator configured to modulate the signal beam or both the signal beam and the reference beam, and a controlling unit configured to control the spatial light modulator to modulate at least one of the signal beam and the reference beam with a totally dark pattern for a predetermined period of time, wherein the predetermined period begins no later than the start of the risetime of a pulse of a laser beam output from the laser light source.

REFERENCES:
patent: 2004/0062178 (2004-04-01), Horimai

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