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. 25, 2010
Filed:
Jul. 11, 2005
Yasuharu Koyata, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Kiyohide Sakai, Tokyo, JP;
Masao Imaki, Tokyo, JP;
Shinsuke Shikama, Tokyo, JP;
Jiro Suzuki, Tokyo, JP;
Takao Endou, Tokyo, JP;
Kouhei Teramoto, Tokyo, JP;
Shigenori Shibue, Tokyo, JP;
Yasuharu Koyata, Tokyo, JP;
Yoshihito Hirano, Tokyo, JP;
Kiyohide Sakai, Tokyo, JP;
Masao Imaki, Tokyo, JP;
Shinsuke Shikama, Tokyo, JP;
Jiro Suzuki, Tokyo, JP;
Takao Endou, Tokyo, JP;
Kouhei Teramoto, Tokyo, JP;
Shigenori Shibue, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided are a speckle removing light source capable of removing speckle by using laser light whose wavelength is temporally changed and a lighting apparatus for producing an image from which the speckle is removed. Included are a light source for outputting laser light, and a light frequency modulator for temporally changing a wavelength of the laser light. The light frequency modulator has a predetermined period set for changing the wavelength of the laser light. Also, provided is a lighting apparatus, including a spatial light modulator illuminated with the laser light outputted from the speckle removing light source to produce an image. The spatial light modulator has a period set for producing the image, which is longer than the period for changing the wavelength of the laser light by the light frequency modulator.