Light source device for an endoscope

Details Light source device for an endoscope Light source device for an endoscope

1985-05-02

1987-11-03

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

128 6, G01J 132, A61B 106

Patent

active

047045205

ABSTRACT:
Disclosed is a light source device for an endoscope including a lamp to flash or to normally emit light according to current fed thereto, a shutter for photographing, and a diaphragm for photographing/observing. In the light source device, the amount of light emitted is variable. In response to a supplied check start command signal, except when the endoscope body is used, the light source device successively checks at least two of the following items; the operation of the shutter, the operation of the diaphragm, normal light emission of the lamp and the flashing of the lamp. Then, the light source device automatically checks, according to the amount of light detected by a photosensitive element, whether the above functions are operating normally or not, and displays the result of the check.

REFERENCES:
patent: 4048493 (1977-09-01), Lee
patent: 4356534 (1982-10-01), Hattori
patent: 4366529 (1982-12-01), Takahashi et al.
patent: 4369767 (1983-01-01), Shishido
patent: 4429686 (1984-02-01), Hosoda
patent: 4487489 (1984-12-01), Takamatsu

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