Twice folded compound magnified virtual image electronic display
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United States of America Patent
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May 18, 1999
Issued Date -
N/A
app pub date -
Apr 1, 1997
filing date -
Dec 21, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A compact virtual image electronic display system is provided which includes a microdisplay for producing a source object, one or more magnification optics, and a distance adjusting mechanism for adjusting a distance between the one or more magnification optics and each other or a reflective surface, the magnification of the compound magnified image relative to the source object being dependent on this distance. The system may include a distance sensing mechanism for sensing the distance between the beamsplitting magnification optic and the reflective element and communicating the distance to a control mechanism which modifies the source object in response. The system can also include a control mechanism for causing the distance adjusting mechanism to adjust the distance in response to the source object produced by the microdisplay. The system can also include a user selectable input for modifying the source object.
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Family
International Classification(s)
Cited Art Landscape
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