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:
Jun. 18, 2013
Filed:
Nov. 09, 2009
Jiro Minabe, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Yasuhiro Ogasawara, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Jiro Minabe, Kanagawa, JP;
Katsunori Kawano, Kanagawa, JP;
Kazuhiro Hayashi, Kanagawa, JP;
Yasuhiro Ogasawara, Kanagawa, JP;
Shin Yasuda, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
There is provided an exposure device including: a light-emitting element array having an elongated support and plural light-emitting elements, the light-emitting elements being arranged in at least one row along a length direction of the support such that a spacing between two adjacent light-emitting elements is a pre-specified first spacing; and a hologram element array having a hologram recording layer disposed on the support and plural hologram elements formed, the plural hologram elements corresponding with each of the light-emitting elements and being formed such that a spacing along the support length direction between two adjacent hologram elements is the first spacing, and a diameter in the support length direction of each of the plural hologram elements being larger than the first spacing, such that a respective light emitted from each of the light-emitting elements is diffracted and focused toward a pre-specified image-forming plane by the corresponding hologram element.