Fresnel lens system

Details Fresnel lens system Fresnel lens system

1982-02-18

1983-08-16

Corbin, John K.

350445, G02B 308, G02B 1700

Patent

active

043988105

ABSTRACT:
A projection lens system of the type used in connection with cathode ray tubes, and more specifically a cathode ray tube projection system having an internal lens folding means, useful in projecting an image or series of images on a screen.

REFERENCES:
patent: 3537771 (1970-11-01), Trufanoff
patent: 3767291 (1973-10-01), Johnson
patent: 4051535 (1977-09-01), Inglis
patent: 4309074 (1982-01-01), Graniari, Jr.

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