Copying objective lens system

Details Copying objective lens system Copying objective lens system

1976-04-13

1978-04-11

Clark, Conrad J.

G02B 1124

Patent

active

040836282

ABSTRACT:
A copying objective lens system of four-component six-element lens configuration comprising a front and rear lens groups arranged symmetrically in respect to the stop positioned at the center, each of said front and rear lens groups comprising a negative cemented doublet lens and positive lens, said copying objective lens system being arranged so that uniform brightness of image can be obtained over the whole field.

REFERENCES:
patent: 3592531 (1971-07-01), McCrobie

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