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. 18, 2009
Filed:
Mar. 03, 2006
Tomoki Kanesaka, Miyagi, JP;
Nobuhiro Kihara, Kanagawa, JP;
Shigeyuki Baba, Tokyo, JP;
Hisayuki Yamatsu, Tokyo, JP;
Megumi Ezura, Tokyo, JP;
Tomoki Kanesaka, Miyagi, JP;
Nobuhiro Kihara, Kanagawa, JP;
Shigeyuki Baba, Tokyo, JP;
Hisayuki Yamatsu, Tokyo, JP;
Megumi Ezura, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A hologram recording device for recording interference fringes between reference light and signal light modulated by data displayed in a spatial modulator in a hologram recording material, the hologram recording device including a phase mask for diffusing light, the phase mask being disposed in an optical system that the signal light passes, wherein a minimum unit of a light diffusing pattern formed in the phase mask is a natural number of times a minimum unit of display data of the spatial modulator.