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:
Sep. 24, 2019
Filed:
Apr. 22, 2016
Nikon Vision Co., Ltd., Shinagawa-ku, Tokyo, JP;
Satoshi Arai, Kawasaki, JP;
Nikon Vision Co., Ltd., Tokyo, JP;
Abstract
Provided is a telescope (TSC) having: an objective optical system (OB); an erecting optical system (PR) for erecting an image formed by the Objective optical system (OB); and an eyepiece optical system (EP) for observing the image which is formed by the Objective optical system (OB) and erected by the erecting optical system (PR). The objective optical system (OB) includes, in order from an object, a first lens group (G) having positive or negative refractive power, a second lens group (G) having positive refractive power, and a third lens group (G) having negative refractive power. The second lens group (G) and the third lens group (G) rotate together around a point (O) on the optical axis of the Objective optical system (OB) in order to correct the image.