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:
Oct. 30, 2012
Filed:
Apr. 21, 2010
Yujiro Nomura, Shiojiri, JP;
Nozomu Inoue, Matsumoto, JP;
Ryuta Koizumi, Shiojiri, JP;
Ken Ikuma, Suwa, JP;
Yujiro Nomura, Shiojiri, JP;
Nozomu Inoue, Matsumoto, JP;
Ryuta Koizumi, Shiojiri, JP;
Ken Ikuma, Suwa, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A line head, includes: a substrate which is provided with a plurality of luminous element groups which respectively include a plurality of luminous elements in a first direction which emit light beams; a lens array which includes a plurality of imaging lenses which are provided corresponding to the plurality of luminous element groups; and a light shielding member which is disposed between the substrate and the lens array and includes a plurality of light guiding holes which correspond to the plurality of luminous element groups, wherein the lens array is away from the light shielding member, an inner diameter of each of the plurality of light guiding holes in the first direction is a first light guiding hole diameter, and a bore diameter of each of the plurality of imaging lenses in the first direction is a first lens diameter, and the first light guiding hole diameter is smaller than the first lens diameter.