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. 31, 2012
Filed:
Nov. 18, 2009
Michihiro Okuda, Hirakata, JP;
Yoshihiro Yokote, Yokohama, JP;
Ryoko Kubo, Ikeda, JP;
Takaaki Abe, Osaka, JP;
Shinya Matsumoto, Hirakata, JP;
Michihiro Okuda, Hirakata, JP;
Yoshihiro Yokote, Yokohama, JP;
Ryoko Kubo, Ikeda, JP;
Takaaki Abe, Osaka, JP;
Shinya Matsumoto, Hirakata, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
An image display device includes a light source which emits laser light; an optical element which is operable to switch between a first state for reducing a coherence of the laser light and a second state for substantially maintaining the coherence of the laser light; a switching control circuit which controls the optical element; an imager which modulates the laser light transmitted through the optical element; and a modulation control circuit which controls the imager based on an image signal. The modulation control circuit causes the imager to render an image pattern for generating an image by changing alight amount at each pixel position when the optical element is in the first state, and causes the imager to render a hologram pattern for generating an image by diffraction when the optical element is in the second state.