Rod lens and endoscope including the same

Details Rod lens and endoscope including the same Rod lens and endoscope including the same

Filed on

1982-03-16

Date issued

1986-09-02

Examiner

Coven, Edward M.

Patent Class

Surgery

SubClass

Truss

SubSubClass

Perineal

Other Related Categories

350 9626, A61B 106

Type

Patent

Status

active

Patent number

046089667

Description

ABSTRACT:
An endoscope including a rigid tube containing a rod lens, and a lens next to the rod lens cemented to it. Both lenses are embraced by the tube. The risk of destruction of the cement bond joining the lenses is reduced by reducing the diameter of the rod lens along a major portion of its length spaced from the cement bond. The invention includes a rod lens for this use, which has a reduced diameter for the major portion of its length between its ends.

REFERENCES:
patent: 3051166 (1962-08-01), Hounanian
patent: 4076018 (1978-02-01), Heckele
patent: 4148551 (1979-04-01), MacAnally
patent: 4360372 (1982-11-01), Maciejko

Affiliated with

Also associated with

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