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. 12, 2009
Filed:
Jun. 05, 2006
Takashi Takeda, Suwa, JP;
Hiroshi Shingu, Azumino, JP;
Takashi Takeda, Suwa, JP;
Hiroshi Shingu, Azumino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
To provide a laser light source unit, a display device, a scanning display device and a projector, in each of which, when a laser is taken out of the chassis or the like, a laser thereof is assuredly rendered incapable of emitting. The laser light source unit includes a laser light source portionhaving a light oscillation portionemitting light, a fixing member that fixes the laser light source portion, an interrupting means that, simultaneously with a movement of removing the laser light source portionoff the fixing member, interrupts a current path for supplying a current to the light oscillation portionin the laser light source portion.