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:
Mar. 11, 2008
Filed:
Apr. 24, 2006
Applicants:
Michifumi Nagawa, Fujimi, JP;
Tsuyoshi Kaneko, Shimosuwa, JP;
Atsushi Sato, Azumino, JP;
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/00 (2006.01); H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical element includes a substrate, a columnar section that is formed above the substrate and has an upper surface for light emission or light incidence, a first protection layer formed above the substrate in a region including at least a circumference of the columnar section, a resin layer formed above the first protection layer, a second protection layer formed above the resin layer, and an electrode that is electrically connected to the upper surface of the columnar section, wherein the first and second protection layers are composed of a material harder than the resin layer.