Imaging endoscope and endoscopic method employing phase conjugat

Details Imaging endoscope and endoscopic method employing phase conjugat Imaging endoscope and endoscopic method employing phase conjugat

1992-09-03

1993-11-16

Lee, John D.

Optical waveguides

Optical fiber bundle

Imaging

359435, 359737, 385119, 385902, G02B 2326

Patent

active

052631109

ABSTRACT:
An improved endoscope employing phase conjugate imaging principles includes a first transmissive member for transmitting light rays received at a distal tip of the endoscope to an intermediate filter location. A phase conjugate filter at the intermediate filter location redirects the rays, according to the precise inverse of their incoming direction, along a second transmissive member optically identical to the first. Rays exiting the endoscope bear the exact relation to one another as when entering the tip of the endoscope and may be imaged or displayed on an eyepiece or video screen.

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