Internal projection system for projecting coherent light...

Optics: image projectors – Relief illusion

Reexamination Certificate

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Details

C353S020000, C353S122000, C345S032000, C359S451000, C348S744000

Reexamination Certificate

active

08066379

ABSTRACT:
A projection system that projects coherent light rays from a coherent light (e.g., laser) source onto an inner reflective surface of a three-dimensional viewing space is disclosed. A relatively compact and low-power laser light image can thereby be formed and seen by an observer from inside the viewing space. Raster scanning or simultaneous projection onto large solid angles of said viewing space are possible. Useful and entertaining information can also be displayed, optionally as dynamic and moving images, onto the projection screen as well.

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