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Endoscopic system with adjustable light source

Image Number 5 for United States Patent #4791480.

An endoscopic system comprises a light source for continuously irradiating an object to be photographed; a solid-state camera element for obtaining image signals from the object; a memory for storing a predetermined unit of the image signals obtained from the solid-state camera element; a display converting device for reading out a unit image under a freezing state from the memory; and a intercepting device for intercepting continuous light of the light source when the display converting device reads out a frozen unit image from the memory, such that pulsed light is irradiated onto the object in synchronous with a timing of transferring a unit image from the solid-state camera element.

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