Line fiberoptic light control module

Details Line fiberoptic light control module Line fiberoptic light control module

1991-04-08

1992-03-31

Ullah, Akm E.

Optical waveguides

Optical fiber bundle

128 4, G02B 640, G02B 636

Patent

active

051014688

ABSTRACT:
A light intensity control device for an endoscope or similar instrument comprising a light source, a fiberoptic cable connected at one to the light source, and a non-electrical diaphragm assembly connected between the end face of the fiberoptic cable and the end face of the fiberoptic bundle within the endoscope. The diaphragm assembly comprises an adjustable opening for receiving light from the end face of the cable for the transmission of light therethrough. A solid member of transparent material between the adjustable opening and the end face of the fiberoptic bundle within the endoscope transmits the light from the cable to the endoscope.

REFERENCES:
patent: 4268116 (1981-05-01), Schmadel et al.
patent: 4322129 (1982-03-01), Takahashi et al.
patent: 4676593 (1987-06-01), Adachi et al.
patent: 4772093 (1988-09-01), Abele et al.
patent: 4824205 (1989-04-01), Yamashita et al.
patent: 4856495 (1989-08-01), Tohjoh et al.
patent: 5005943 (1991-04-01), Fort

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