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. 26, 1997
Filed:
Sep. 01, 1995
Yutaka Ishizuka, Nagano, JP;
Koichi Katakura, Nagano, JP;
Kabushiki Kaisha Sankyo Seiki Seisakusho, Nagano, JP;
Abstract
A rotary polygon mirror type light deflecting system including a mirror, a hub, and a fixed shaft made of materials whose coefficients of linear expansion are equal to one another. A fixed shaft is erected integrally with a frame. Inner races of ball bearings are secured to the fixed shaft. A stator has a coil wound around a stator core formed contiguously with the frame. A drive magnet annularly surrounding the outer circumferential surface of the stator core and a yoke are fixed to a polygon mirror with a clamper and screws through a hub. The drive magnet, the yoke, and the hub are secured to the fixed shaft and made rotatable by the outer races of the ball bearings secured to the fixed shaft.