Endoscope illuminating optical system device

Details Endoscope illuminating optical system device Endoscope illuminating optical system device

1987-06-02

1989-02-07

Grieb, William H.

Surgery

Truss

Perineal

350 9626, A61B 106

Patent

active

048024600

ABSTRACT:
An endoscope illuminating optical system device wherein a light guide inserted through an insertable part of an endoscope and transmitting an illuminating light to an observing system is formed to be noncircular as a whole on the exit end surface at the front end and an illuminating optical member formed to be of a cross-section as a whole substantially of the same shape and size as of the exit end surface of the light guide and distributing the illuminating light projected out of the exit end surface of the light guide to an object to be observed is provided in a position opposed to the exit end surface of the light guide.

REFERENCES:
patent: 3261349 (1966-07-01), Wallace
patent: 3799150 (1974-03-01), Bonnet
patent: 4272156 (1981-06-01), Ishibashi et al.
patent: 4403273 (1983-09-01), Nishiota
patent: 4660982 (1987-04-01), Okada

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