Observation optical system for endoscopes

Details Observation optical system for endoscopes Observation optical system for endoscopes

1993-04-09

1995-06-13

Sugarman, Scott J.

Optical: systems and elements

Lens

Telecentric system

359753, G02B 1322, G02B 1304

Patent

active

054248779

ABSTRACT:
An observation optical system for endoscopes configured so as to allow observation of objects located in liquids, comprising an objective lens system and relay lenses for relaying an image formed by the objective lens system, and satisfies the following conditions (1) and (2):

REFERENCES:
patent: Re33689 (1991-09-01), Nishioka
patent: 5005957 (1991-04-01), Kanamori et al.
patent: 5087989 (1992-02-01), Igarashi

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