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. 31, 2016
Filed:
Oct. 29, 2013
Shinnosuke Enomoto, Yamanashi, JP;
Seiji Nishizawa, Yamanashi, JP;
Masataka Hamada, Yamanashi, JP;
NISCA CORPORATION, Minamikoma-gun, Yamanashi-ken, JP;
Abstract
Provided are: an illumination device having a configuration in which a temperature rise of a radiation member is suppressed in a limited volume to thereby maintain a temperature of an LED at a predetermined value or less and an image reading device provided with the illumination device. In order to release heat generated by the LED from a substrate on which the LED is mounted, a first heat radiation plate () and a second heat radiation plate () are provided on both sides of the LED-mounted substrate; the second heat radiation plate (), the LED-mounted substrate, and the first heat radiation plate () are installed in this order on a second frame () that supports the LED-mounted substrate, first and second heat radiation plates () and (); a fan is disposed on the first heat radiation plate () side; when viewing the second frame () in a direction perpendicular to a longitudinal direction thereof, a cross-sectional profile of the second heat radiation plate () has an area protruding with respect to a cross-sectional profile of the first heat radiation plate (); and the configuration is such that wind from the fan is aggressively blown against the first and second heat radiation plates () and ().