Objective lens

Details Objective lens Objective lens

1983-06-03

1985-07-30

Corbin, John K.

350414, G02B 914, G02B 2102

Patent

active

045318158

ABSTRACT:
An objective lens has a positive first lens disposed at a position most distant from an object surface, a meniscus-shaped second lens disposed on the object side of the first lens and having its convex surface facing the object side, and a positive third lens disposed on the object side of the second lens. The objective lens satisfies the following conditions:

REFERENCES:
patent: 4258981 (1981-03-01), Goto
patent: 4416519 (1983-11-01), Kobayashi

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