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. 30, 2006
Filed:
Feb. 18, 2004
Ryoji Katsuma, Suwa, JP;
Motoyuki Fujimori, Suwa, JP;
Ryoji Katsuma, Suwa, JP;
Motoyuki Fujimori, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The invention provides a light source and a projector with sufficiently high luminance and size reduction for related art lamps, an increased lamp lifetime, and reduced noises from a cooling fan. A light source includes a concave mirror which has a reflecting part that reflects light, non-reflecting parts adjacent to this reflecting part, and permeable ports that pass through the non-reflecting parts, and which opens forward; a lamp which is arranged in this concave mirror and emits the light; and a light permeable member which covers the opening part of the concave mirror. The concave mirror includes a mesh arranged in a position where it covers the permeable port, and a protective wall to protect the mesh, which is arranged in a position where direct collision between the mesh and broken pieces of the lamp made by a burst of the lamp is reduced or prevented.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile