Microscope for operation

Details Microscope for operation Microscope for operation

2006-06-14

2008-08-05

Nguyen, Thong (Department: 2872)

Optical: systems and elements

Compound lens system

Microscope

C359S368000, C359S381000, C351S214000

Reexamination Certificate

active

07408705

ABSTRACT:
A microscope for operation having an illuminating optical system with an illuminating field diaphragm, for directing an illuminating light toward an eye to be operated upon, an objective body tube with an objective positioned in the body tube to be opposite to the eye, a pair of observing optical systems disposed at opposite sides of an optical axis of the objective for observing the eye, a front lens disposed between the objective and the eye to collect the illuminating light and to guide the collected light in the front of the eye for illuminating the interior of the eye, and a slit plate provided in the optical path of the illuminating optical system, with the illuminating field diaphragm being conjugate with an anterior focus position u0of the objective, which is conjugate with a fundus through the front lens.

REFERENCES:
patent: 3563665 (1971-02-01), Takahashi et al.
patent: 4163150 (1979-07-01), Stankewitz
patent: 5249004 (1993-09-01), Kitajima
patent: 5684625 (1997-11-01), Stankewitz et al.
patent: 5713047 (1998-01-01), Kohayakawa
patent: 5801807 (1998-09-01), Satake et al.
patent: 6439721 (2002-08-01), Reiner et al.
patent: 7102818 (2006-09-01), Sander
patent: 94 15 219.5 (1995-01-01), None
patent: WO 91/15150 (1991-10-01), None

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