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:
Aug. 17, 2010
Filed:
Feb. 05, 2007
Kazuyuki Iinuma, Azumino, JP;
Hiroaki Yanai, Shiojiri, JP;
Gaku Nishizawa, Nagano, JP;
Takanori Fukuyama, Matsumoto, JP;
Kazuyuki Iinuma, Azumino, JP;
Hiroaki Yanai, Shiojiri, JP;
Gaku Nishizawa, Nagano, JP;
Takanori Fukuyama, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
An optical device is provided which includes a plurality of optical modulation devices, a plurality of optical elements, and a prism having a plurality of luminous flux incidence surfaces positioned on a luminous flux irradiation-side of each optical element. The optical device includes a holding member which holds at least one of the plurality of optical modulation devices and a pair of light-transmissive substrates. In one implementation, an irradiation-side substrate disposed on the luminous flux irradiation-side of the optical element has a dimension larger than that of the optical element, and the irradiation-side substrate is secured to the luminous flux incidence surface of the prism, an aperture is formed in the holding member, and the holding member is attached to the irradiation-side substrate so as to cover the optical element.