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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.:

US 8842149 B1

PDFFull Text
Date of Patent:
Sep. 23, 2014

Filed:

Jun. 26, 2013

Optical scanning device with heat-insulating room capable of insulating heat transferred upward from device interior and image forming apparatus with the optical scanning device

Applicant:

Kyocera Document Solutions, Inc., Osaka, JP;

Inventor:

Hiroyuki Tomioka, Osaka, JP;

Assignee:

Kyocera Document Solutions Inc., Osaka, JP;

Attorney:

Knobbe, Martens, Olson & Bear LLP

Primary Examiner:

Hai C Pham

Int. Cl.
CPC ...
B41J 15/14 (2006.01); B41J 27/00 (2006.01); G02B 26/12 (2006.01); H04N 1/00 (2006.01); G03G 15/28 (2006.01); G02B 7/00 (2006.01);
U.S. Cl.
CPC ...
G03G 15/28 (2013.01); G02B 26/12 (2013.01); G02B 26/125 (2013.01); H04N 1/00978 (2013.01); G02B 7/008 (2013.01);
Abstract

An exposure device includes a polygon motor, an fθ lens, and a heat-insulating room. The polygon motor is driven into rotation while producing heat, which makes it likely that the temperature of a portion of the fθ lens near a housing right wall becomes lower than that of a portion of the fθ lens near a housing left wall. The exposure device further includes a recess located above the fθ lens and extended in a right-and-left direction. The heat-insulating room is formed by disposing a plate above the portion of the fθ lens near the housing right wall to cover the recess. Thus, the plate restricts upward heat release from the portion of the fθ lens near the housing right wall.

Find Patent Forward Citations

Tomioka, Hiroyuki. (2014). Optical scanning device with heat-insulating room capable of insulating heat transferred upward from device interior and image forming apparatus with the optical scanning device (U.S. Patent No. 8842149). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8842149

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

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