Holographic printer

Details Holographic printer Holographic printer

2008-03-11

2009-06-16

Chang, Audrey Y (Department: 2872)

Optical: systems and elements

Holographic system or element

Hardware for producing a hologram

C359S012000, C359S010000

Reexamination Certificate

active

07548360

ABSTRACT:
A single method and apparatus for producing many of the most common types of hologram from digital data is disclosed. The data are generated entirely by a computer as a 3-D (animated) model or from multiple 2-D camera images taken of a real 3-D (moving) object or scene from a plurality of different camera positions. The data are digitally processed and displayed on a small high resolution spatial light modulator (SLM). A compact low energy pulsed laser, is used to record composite holograms. The present invention permits the creation of restricted or full parallax master transmission or reflection type composite holograms, known as H1 holograms, that can be copied using traditional methods. Alternatively the same invention and apparatus permits the direct writing of hologram without the need to pass through the intermediate stage of the H1 transmission hologram.

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Masahiro Yamaguchi et al.; Development of prototype full-parallax holoprinter, XP-000979992, SPIE vol. 2406, 1995, pp. 50-56.

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