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. 18, 2006
Filed:
Jan. 28, 2005
Daisuke Uchikawa, Chino, JP;
Masatoshi Yonekubo, Hara-mura, JP;
Shunji Kamijima, Hara-mura, JP;
Kazuhisa Mizusako, Fujimi-machi, JP;
Daisuke Uchikawa, Chino, JP;
Masatoshi Yonekubo, Hara-mura, JP;
Shunji Kamijima, Hara-mura, JP;
Kazuhisa Mizusako, Fujimi-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Exemplary embodiments of the invention provide a spatial light modulator that is inexpensive, has a long life and a high light use efficiency, and with which can be obtained a high-contrast image, and a projector disposed with the spatial light modulator. Exemplary embodiments provide a spatial light modulator including a liquid crystal layer that includes plural aperture regions AP, modulates light in accordance with image signals and emits the modulated light; and microlens elements that are disposed at an incident side of the liquid crystal layer in correspondence to the aperture regions AP and condense the light made incident so that the light passes through the aperture regions AP. The microlens elements include plural focal positions fand fthat are different per plural substantially annular portions Rand Raround an optical axis AX.