Quick change lens system

Details Quick change lens system Quick change lens system

1979-09-24

1981-05-12

McGraw, Vincent P.

Optics: image projectors

Plural projection paths with single light source

350257, 353101, 355 55, 355 61, G02B 716, G03B 2114, G03B 2752

Patent

active

042668557

ABSTRACT:
A lens nesting member carries a plurality of lenses in position to enable rapid selection of a desired lens and photoelectric means is provided for sensing and for identifying the desired lens.

REFERENCES:
patent: 3458706 (1969-07-01), Ravenhall et al.

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