Fundus camera

Details Fundus camera Fundus camera

1995-02-10

1997-04-01

Nguyen, Thong

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351206, 351213, A61B 314, A61B 310

Patent

active

056171560

ABSTRACT:
A fundus camera, for taking photographs by fluorescence, has an illuminating optical system to illuminate a fundus. The illuminating optical system is provided with a diaphragm that can be adjusted to modify the illumination state of the fundus according to the light reflected from the fundus when taking photographs by fluorescence. As a result, a good photographic image of the fundus can always be obtained.

REFERENCES:
patent: 4265518 (1981-05-01), Matsumura
patent: 4422736 (1983-12-01), Nunokawa
patent: 4439024 (1984-03-01), Ito
patent: 4799783 (1989-01-01), Takahashi et al.
patent: 4810084 (1989-03-01), Nyui
patent: 4859051 (1989-08-01), Fukuma et al.
patent: 5039214 (1991-08-01), Nagata et all.
patent: 5214454 (1993-05-01), Sano

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