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. 31, 2010
Filed:
Jun. 12, 2007
Yasuhiro Ogasawara, Kanagawa, JP;
Jiro Minabe, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Koichi Haga, Kanagawa, JP;
Hisae Yoshizawa, Kanagawa, JP;
Makoto Furuki, Kanagawa, JP;
Yasuhiro Ogasawara, Kanagawa, JP;
Jiro Minabe, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Koichi Haga, Kanagawa, JP;
Hisae Yoshizawa, Kanagawa, JP;
Makoto Furuki, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
There is provided a hologram recording method, including generating a signal light which is spatially modulated such that digital data is represented by an image of intensity distribution, irradiating the signal light on an optical recording medium after a Fourier transformation of the signal light such that a zero-order component of the signal light comes into focus at a point removed from the optical recording medium, forming a diffraction grating in the optical recording medium by interference between the zero-order component of the signal light and a high-order component thereof, and recording digital data represented by the signal light as a hologram.