Motor-controlled lens system

Details Motor-controlled lens system Motor-controlled lens system

1988-07-26

1991-07-09

Arnold, Bruce Y.

Optics: image projectors

Plural projection paths with single light source

350255, 353101, 356147, G02B 1500

Patent

active

050299921

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.

REFERENCES:
patent: 4161756 (1979-07-01), Thomas
patent: 4357107 (1982-11-01), Rosli
patent: 4697891 (1987-10-01), Kawai
patent: 4752126 (1988-06-01), Fujii

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