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:
Apr. 02, 2002
Filed:
Jun. 04, 1998
Motoyuki Fujimori, Suwa, JP;
Akitoshi Kuroda, Suwa, JP;
Shinji Haba, Suwa, JP;
Kiyoshi Miyashita, Suwa, JP;
Takeshi Takizawa, Suwa, JP;
Mutsuya Furuhata, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In a projection display provided with an optical unit, a power source unit, an external case to store the optical unit and the power source unit, a suction opening ( ) is formed in one end part of the power source unit, a discharge opening ( ) is formed in the other end part, and the suction opening ( ) is arranged in the vicinity of an air inlet in the external case. Because the suction opening ( ) and the discharge opening ( ) are provided, the inside of the power source unit can be independently and efficiently cooled, and the optical unit and the power source unit can be arranged closely to each other.