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:
May. 23, 2000
Filed:
Dec. 01, 1998
Ken Hirunuma, Tokyo, JP;
Shinji Tsukamoto, Saitama-ken, JP;
Moriyasu Kanai, Tokyo, JP;
Tetsuo Sekiguchi, Saitama-ken, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A binocular is provided with a pair of telescopic optical systems. Each of the pair of telescopic optical systems has an objective lens system, an erecting optical system, and an observing optical system. The erecting optical system of each of the telescopic optical systems may be a type I or type II Porro prism, which is divided into two sub prisms respectively have two reflection surfaces. First and second hand vibration compensation mechanism is provided: (a) between the objective lenses and erecting optical systems; and (b) between the first sub prisms and the second sub prisms.