Photographing light quantity controller for endoscope

Details Photographing light quantity controller for endoscope Photographing light quantity controller for endoscope

1991-07-11

1992-10-27

Perkey, W. B.

Surgery

Truss

Pad

354416, 354 62, 128 6, 315241P, G03B 1505, A61B 106

Patent

active

051593807

ABSTRACT:
A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to be taken through the endoscope. The photographing light quantity controller comprises a device for supplying light for illuminating an object to be viewed by the endoscope, a photoelectric conversion device for converting into an electric signal, a brightness level of exposure light that is applied to a photographic plane in a photographing device after being reflected from the object, and a device for integrating the output from the photoelectric conversion device and outputting the resulting integral value. The photographing light quantity controller further comprises a device for outputting a numerical value corresponding to a quantity of exposure light which is to be applied to the photographic plane, a device for converting the integral value into a numerical value on the same scale as that of the numerical value of the exposure quantity, and a device for deciding an exposure quantity, and a device for deciding an exposure time by comparing the numerical value of the exposure quantity and the output value from the integral value converting device.

REFERENCES:
patent: 3680457 (1972-08-01), Uno et al.
patent: 4021663 (1977-05-01), Takahashi
patent: 4086583 (1978-04-01), Takahashi
patent: 4297011 (1981-10-01), Adams, Jr.
patent: 4322129 (1982-03-01), Takahashi et al.
patent: 4329623 (1982-05-01), Hattori
patent: 4366529 (1982-12-01), Takahashi et al.
patent: 4398127 (1983-08-01), Bahn et al.
patent: 4509508 (1985-04-01), Tsukaya
patent: 4985725 (1991-01-01), Serikawa

Affiliated with

Also associated with

Rating

Photographing light quantity controller for endoscope does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photographing light quantity controller for endoscope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photographing light quantity controller for endoscope will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-908798