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:
Jul. 21, 2014
Filed:
Aug. 06, 2013
Seiko Epson Corporation, Tokyo, JP;
Akira Miyamae, Fujimi-machi, JP;
Shuji Narimatsu, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes: a first solid-state light source device which includes a first solid-state light source emitting main excitation light, and a fluorescent layer converting main excitation light to light including a first color light component and a second color light component different from the first color light component, and emitting converted light; a second solid-state light source device which includes a second solid-state light source emitting a third color light component different from the first color light component and the second color light component; a light modulation device modulating the first color light component, the second color light component, and the third color light component in accordance with image information; a projection optical system projecting the modulated light components from the light modulation device as a projection image; and a third solid-state light source device which includes a third solid-state light source emitting auxiliary excitation light, wherein the fluorescent layer is configured such that auxiliary excitation light is input thereto in a direction different from a direction in which main excitation light is input, and the fluorescent layer is configured to convert auxiliary excitation light to light including the first color light component and the second color light component, and to emit converted light.