Motor-controlled lens system
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United States of America Patent
Stats
-
Jul 9, 1991
Grant Date -
N/A
app pub date -
Jul 26, 1988
filing date -
Jul 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stage light projector including an electronically controlled lens system capable of independently positioning two lenses of a triplet lens system to focus light from different selected back focal plane distances to project images having different selected sizes upon a screen or stage at a selected distance.
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Family
International Classification(s)
Cited Art Landscape
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