Objective for endoscopes

Details Objective for endoscopes Objective for endoscopes

1977-04-04

1979-08-28

Clark, Conrad J.

350 54, G02B 912

Patent

active

041659171

ABSTRACT:
An objective for endoscopes to be used in such endoscope arranged to transmit an image of an object by a plural number or relay lens groups and basically comprising a front diverging lens group, which comprises a negative lens, and a rear converging lens group, which comprises a positive lens and positive cemented doublet. The objective for endoscopes is arranged so that aberrations of the endoscope as a whole including the relay lens groups are corrected favorably.

REFERENCES:
patent: 4037938 (1977-07-01), Yamashita
patent: 4042295 (1977-08-01), Yamashita

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