Adaptor for measuring length optically for endoscope

Details Adaptor for measuring length optically for endoscope Adaptor for measuring length optically for endoscope

1985-05-07

1987-04-28

Evans, F. L.

Optics: measuring and testing

By configuration comparison

With photosensitive film or plate

128 6, G01B 1102

Patent

active

046609822

ABSTRACT:
An optical adaptor incorporating a projecting optical system, view field-changing optical system and at least one index attached to said projecting optical system is provided to be attached detachably to the tip portion of insert member of an endoscope equipped with an illuminating optical system for illuminating an object and an objective optical system for focusing the object into the elongated tip of the insert member, thereby enabling measuring the length of the object by projecting the index to the plane including the object.

REFERENCES:
patent: 3817631 (1974-06-01), Kawahara
patent: 3817635 (1974-06-01), Kawahara
patent: 4271829 (1981-06-01), Heckele
patent: 4588294 (1986-05-01), Siegmund

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