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. 25, 2006
Filed:
Mar. 10, 2003
Hideya Seki, Nagano-Ken, JP;
Masatoshi Yonekubo, Nagano-Ken, JP;
Hideya Seki, Nagano-Ken, JP;
Masatoshi Yonekubo, Nagano-Ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The present invention relates to a small optical writing head, such as an organic EL array exposure head, having long work distance with little crosstalk, a method of manufacturing the same, and an image forming apparatus using the same. The optical writing head is an optical writing head which projects fluxes of modulated light from light-emitting partsof a light-emitting element array such as an organic EL array or fluxes of modulated light transmitted through shutter partsof an optical shutter element array onto an image carrierto form a predetermined pattern on the image carrier. The optical writing head comprises ball lenseswhich are arranged such that the alignment of the ball lensescorresponds to the alignment of the light-emitting partsof the light-emitting element array or the shutter partsof the optical shutter element array.