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. 20, 2008
Filed:
Sep. 20, 2005
Applicant:
Hisashi Nakamura, Hyogo, JP;
Inventor:
Hisashi Nakamura, Hyogo, JP;
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); G03B 21/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A shutter device can switch between a state where illuminating light from a lamp of an illuminating device is blocked (referred to as a closing state of the shutter device) and a state where illuminating light passes through (referred to as an opening state of the shutter device). A system control circuit instructs a panel cooling fan-use power source to decrease a fan rotation speed, when receiving information indicating that the shutter device is in the closing state from the detecting portion. After receiving this instruction, the panel fan power source decreases power supplied to the panel cooling fan (fan motor).