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:
Aug. 18, 1981
Filed:
Dec. 28, 1979
Applicant:
Inventors:
Isao Ishibai, Machida, JP;
Kunimitsu Kobayashi, Higashimurayama, JP;
Assignee:
Hoya Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G02B / ;
U.S. Cl.
CPC ...
350 36 ; 350 47 ; 350 76 ;
Abstract
Binoculars including an eye span adjustment mechanism and an automatic focussing feature. A pair of guide rails is disposed laterally in the binoculars housing. Drive rods threadedly engaged with the lens barrels are movable along the guide rails to move the lens barrels back and forth in response to rotation of a knob and adjustment rod. An automatic focussing is disposed between the lens barrel to move the ocular lens in response to an electronically produced focussing signal.
Ishibai, Isao. (1981). Eye span adjustment mechanism for binoculars (U.S. Patent No. 4284325). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4284325
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile