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. 05, 2011
Filed:
Jan. 14, 2008
Makoto Furuki, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Jiro Minabe, Kanagawa, JP;
Yasuhiro Ogasawara, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Koichi Haga, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Hisae Yoshizawa, Kanagawa, JP;
Makoto Furuki, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Jiro Minabe, Kanagawa, JP;
Yasuhiro Ogasawara, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Koichi Haga, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Hisae Yoshizawa, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An optical device for holographic recording or reading is provided and includes: a light emission unit that emits light to be irradiated on an optical recording medium, the light being recording or reading light; a first prism unit that moves in accordance with a moving speed of the optical recording medium and refracts the light to move the light irradiated on the optical recording medium over a distance in a moving direction of the optical recording medium so that the light is irradiated on substantially the same position on the optical recording medium for a period of time; and a second prism unit that moves in accordance with the moving speed of the first prism unit to compensate for an optical path length of the light.