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. 03, 1999
Filed:
Mar. 05, 1998
Yutaka Ishizuka, Nagano, JP;
Kabushiki Kaisha Sankyo Seiki Sisakusho, Nagano, JP;
Abstract
In a rotary polygon mirror type light deflector 1, since a ring-shaped polygon mirror 8 is mounted on the periphery of a bearing rotor 3, there exists a clearance between the bearing rotor 3 and polygon mirror 8. Even in this structure, if the leading end portion 110 of a fixing screw 11 is contacted with a wedge-shaped positioning member 12A within a groove 35 when the fixing screw 11 is threadedly engaged into the screw hole 35, then the positioning member 12A is allowed to push out the polygon mirror 8 toward the outer peripheral side thereof by an amount equivalent to the above-mentioned clearance, thereby being able to position and fix the polygon mirror 8 in the radial direction.