Stereoscopic-vision endoscope offering a large angle of introver

Details Stereoscopic-vision endoscope offering a large angle of introver Stereoscopic-vision endoscope offering a large angle of introver

1995-08-23

1999-01-19

Willis, Davis L.

Optical: systems and elements

Compound lens system

With relay

359435, 359654, 359735, 359737, 359784, 359738, 359674, 359429, 359441, G02B 2702, G02B 300, G02B 1700, G02B 912

Patent

active

058619879

ABSTRACT:
A stereoscopic-vision endoscope of the present invention comprises a tubular elongated insertional part, an objective optical system situated in the insertional part, a relay optical system situated in the insertional part for transmitting an object image formed by the objective optical system, a pupil dividing stop for dividing a light beam emanating from an object image formed by the relay optical system into a plurality of portions, an image formation optical system for receiving light beams from the pupil dividing stop so as to form a plurality of object images having parallax, and imaging devices for picking up the object images formed by the image formation optical system. The relay optical system satisfies the condition .phi..sup.2 /L>0.43 (where .phi. denotes an outer diameter of a system of relay lenses, and L denotes a relay length of the relay optical system).

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patent: 5005957 (1991-04-01), Kanamori et al.
patent: 5206759 (1993-04-01), Ono et al.
patent: 5233473 (1993-08-01), Kanamori
patent: 5508846 (1996-04-01), Hall

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