Zoom lens having magnification factors in the range of 12X to 24

Details Zoom lens having magnification factors in the range of 12X to 24 Zoom lens having magnification factors in the range of 12X to 24

1987-04-01

1988-05-10

Corbin, John K.

G02B 1514, G02B 1708

Patent

active

047431024

ABSTRACT:
A zoom lens system which provides magnification factors in the range of 12 to 24. The lens system of the invention is particularly useful in micrographic reader/printers.

REFERENCES:
patent: 3354776 (1967-11-01), Smitzer et al.
patent: 3360325 (1967-12-01), Gustafson
patent: 3482901 (1969-12-01), Melech
patent: 3582203 (1971-06-01), Cox
patent: 3724927 (1973-04-01), Cox

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