Three dimensional projection arrangement
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United States of America Patent
Stats
-
Feb 18, 1986
Issued Date -
N/A
app pub date -
Oct 25, 1984
filing date -
Jan 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A projection arrangement for projecting three-dimensional images of objects into space. The object is illuminated by a source of light, and the light rays reflected from the object are directed so as to be incident on a mirror surface located behind a lens. The mirror surface receives an image from the lens and the combination forms an enlarged three-dimensional image projected into space. The lens can be in the form of a modified Fresnel lens of multiple focal lengths and having spherical zones in the form of strips. The Fresnel lens, which may be used in combination with other optical elements, provides a substantially large field of view suitable for viewing a three-dimensional image of the object by a mass audience. The image projection may be achieved without the use of a screen. The enlarged three-dimensional image appears floating in space visible to unaided eyes of an audience.
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Family
International Classification(s)
Cited Art Landscape
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