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:
Oct. 12, 1999
Filed:
Feb. 25, 1997
Applicant:
Inventors:
Moriyasu Shirayanagi, Tokyo, JP;
Tomohiko Kanzaki, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
359481 ; 359409 ; 359411 ;
Abstract
Binocular magnifying glasses include a pair of magnifying optical systems, one system for each of the left and right eyes. Each optical system has an objective lens having a positive power and an eyepiece having a negative power arranged in that order from the object side in. The optical center of at least one eyepiece is positioned outside of a line connecting the center of rotation of the eye and the object point.