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.

Date of Patent:
Oct. 23, 2001

Filed:

Oct. 31, 2000
Applicant:
Inventors:

Ken Hirunuma, Tokyo, JP;

Shinji Tsukamoto, Saitama, JP;

Atsushi Denpo, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 2/300 ;
U.S. Cl.
CPC ...
G02B 2/300 ;
Abstract

A connecting member is provided with a first, a second and a third arm which radially extend. A first hole is formed at an end of the first arm, and a second hole is formed at an end of the second arm. The centers of the first and second holes respectively coincide with optical axes of objective lenses. A pair of eyepiece groups are held by a pair of holders. The holders are rotatably held by the first and second holes, so that an interpupillary adjustment is carried out. A rotation ring axle is threadably engaged with a third hole formed at an end of the third arm. A guide shaft passes through a junction of the first, second and third arms. The connecting member is movable along optical axes of the eyepieces, so that a focusing operation is carried out.


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Hirunuma, Ken. (2001). Focusing device of binocular (U.S. Patent No. 6307673). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6307673

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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