Lens system for use with an optical disk

Details Lens system for use with an optical disk Lens system for use with an optical disk

1986-11-18

1988-01-26

Corbin, John K.

G02B 910

Patent

active

047213736

ABSTRACT:
A lens system for use with an optical disk consisting of a positive lens (+) and a negative lens (-) cemented to the positive lens satisfying the conditions of

REFERENCES:
patent: 4384766 (1983-05-01), Tokuhara
patent: 4632520 (1986-12-01), Yamakawa

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