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. 27, 2006
Filed:
Jun. 09, 2003
Hiroshi Sunagawa, Kanagawa, JP;
Hiromi Ishikawa, Kanagawa, JP;
Yoji Okazaki, Kanagawa, JP;
Kazuhiko Nagano, Kanagawa, JP;
Takeshi Fujii, Kanagawa, JP;
Toshihiko Omori, Kanagawa, JP;
Hiroshi Sunagawa, Kanagawa, JP;
Hiromi Ishikawa, Kanagawa, JP;
Yoji Okazaki, Kanagawa, JP;
Kazuhiko Nagano, Kanagawa, JP;
Takeshi Fujii, Kanagawa, JP;
Toshihiko Omori, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A reduction in utilization efficiency of laser beams emitted from laser emission portions of illumination means is limited and an exposure surface is exposed by beam spots with desired spot diameters and spot forms. At an exposure head, first microlenses are arranged in a two dimensional manner so as to correspond to micromirrors at a DMD, and apertures are arranged in a two dimensional manner at back side focusing positions of the first microlenses. With this exposure head, light source images, which are formed to be very small at back side focusing positions of the first microlenses by the first microlenses, are projected onto the exposure surface, and these light source images serve as beam spots BS and expose the exposure surface.