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. 03, 2011
Filed:
Jan. 17, 2008
Yoshitaka Ito, Matsumoto, JP;
Yoshitaka Ito, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A projector includes a light source that emits light including visible light and infrared light, a light separating unit that separates the light from the light source into lights in plural different wavelength regions, at least one light modulation element for visible light that modulates visible light separated by the light separating unit, at least one light modulation element for infrared light that modulates one kind of infrared light or at least two kinds of infrared light in wavelength regions different from each other separated by the light separating unit, a light combining unit that combines the modulated light modulated by the light modulation element for visible light and the modulated light modulated by the light modulation element for infrared light into one to form combined light, and a projecting unit that projects and displays the combined light combined by the light combining unit on a projection surface. The projector superimposes and displays a visible light image formed by the light modulation element for visible light and an infrared image formed by the light modulation element for infrared light on the identical projection surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile