Observation system with an endoscope

Details Observation system with an endoscope Observation system with an endoscope

1993-12-15

1995-02-28

Healy, Brian

Optical waveguides

Optical fiber bundle

Imaging

385 33, 385115, 385116, 385117, 385126, 128 4, 128 6, G02B 606, A61B 106

Patent

active

053944992

ABSTRACT:
An observation system for an endoscope has an entrance end face upon which an image is incident and an exit end face from which the image exits. The system comprises an image guide fiber of a very small diameter to allow transmission of the image, an object optical system arranged in front of the entrance end face of the image guide fiber, and a reproduction optical system arranged on the back side of the exit end face of the image guide fiber. The reproduction optical system is comprised of an eyepiece optical system and relay lens system. The maximal exit numerical aperture of the object optical system is greater than the maximal entrance numerical aperture of the reproduction optical system.

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T. Hosono; "Transmission Characteristics of Image Fiber"; 1983; pp.843-850; College of Science And Technology, Nihon University, Tokyo, Japan; vol. J66-C.

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