The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1985
Filed:
Jul. 06, 1984
Minoru Okada, Hachioji, JP;
Olympus Optical Co. Ltd., , JP;
Abstract
An endoscope includes an indicating index disposed between an objective optical system and an image transmitter so as to be movable in cooperation with the objective optical system through a cam mechanism and a stationary reference index disposed in a path for transmitting an image of an object to be observed, so that measurements of an actual size of the object, a magnification of the objective optical system, an object distance and the like can be made in a reliable manner based on the positional relationship between the indicating index and the stationary reference index, although the objective optical system moves due to a focus adjustment operation. In addition, an endoscope is provided with a plurality of the stationary reference indexes so that the above mentioned measurements can be made in a reliable manner, although the objective optical system moves by operation of an angle of view converting apparatus.