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:
Jan. 05, 1993
Filed:
Sep. 25, 1991
Hidehiko Furuhashi, Fujisawa, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A lens barrel for a microscope comprises an eyepiece barrel provided for rotation relative to a barrel body, a reflecting mirror holder for holding on the rotational center axis of the eyepiece barrel a reflecting mirror having a reflecting surface for reflecting light from an objective lens, and rotating the reflecting mirror about the rotational center axis, first and second circumferential surfaces having a ratio of outer diameters of approximately 1 to 2 and formed on the eyepiece barrel and the reflecting mirror holder, respectively, about the rotational center axis, a pulley rotatably supported on the barrel body, and a connecting member for connecting the first circumferential surface of the eyepiece barrel and the second circumferential surface of the reflecting mirror holder together through the pulley.