Holographic printer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 16, 2005
Grant Date -
Mar 27, 2003
app pub date -
Dec 8, 2000
filing date -
Dec 10, 1999
priority date (Note) -
Expired
status (Latency Note)
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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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