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US 6,796,939 B1Granted
Electronic endoscope
AssigneeOlympus Corporation
InventorsYasuo Hirata, Yutaka Konomura, Yasundo Tanaka, Katsunori Sakiyama
Life of this patent
Estimating the term…
Abstract
An electronic endoscope having an illuminating section in which an LED for illumination that emits illuminating light to illuminate an observed site is provided and a C-MOS image sensor which has an image pickup surface on which an optical image is formed and outputs a video signal.
Claims15
An electronic endoscope, comprising:
- an operating portion;
- an inserting portion coupled to the operating portion and arranged distally thereof;
- and
- an image pickup adapter detachably coupleable to an end of the inserting portion, the image pickup adapter including at least one LED to emit light to illuminate an observed site;
- a C-MOS image sensor having an image pickup surface on which an optical image of the observed site is formed, the C-MOS image sensor outputting a video signal to the operating section, the video signal corresponding to the optical image;
- a first power supply circuit substrate which supplies power to the C-MOS image sensor;
- a second power supply circuit substrate which supplies power to the at least one LED;
- and a temperature increase controller which prevents an increase in temperature of the C-MOS image sensor above a predetermined temperature.
5 more elements
An electronic endoscope, comprising:
- an operating portion;
- an inserting portion coupled to the operating portion and arranged distally thereof;
- and
- an image pickup adapter detachably coupleable to an end of the inserting portion, the image pickup adapter including at least one LED to emit light to illuminate an observed site;
- a C-MOS image sensor having an image pickup surface on which an optical image of the observed site is formed, the C-MOS image sensor outputting a video signal to the operating section, the video signal corresponding to the optical image;
- a first power supply circuit substrate to supply power to the C-MOS image sensor;
- a second power supply circuit substrate to supply power to the at least one LED;
- and a temperature increase controller to prevent an increase in temperature of the C-MOS image sensor above a predetermined temperature, wherein the temperature increase controller is a light quantity switch which changes a quantity of light emitted by the illuminating section.
5 more elements
Dependencies are inferred from the claim text.