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. 07, 2008
Filed:
Sep. 29, 2006
Michifumi Nagawa, Fujimi, JP;
Michifumi Nagawa, Fujimi, JP;
Seiko Epson Corporation, , JP;
Abstract
An optical element includes: a substrate; a surface-emitting type semiconductor laser that is provided on the substrate and emits laser light in a direction orthogonal to a surface of the substrate; a rectification element that is provided on the substrate and connected in parallel with the surface-emitting type semiconductor laser, the rectification element having a rectification action with respect to a reverse bias voltage applied to the surface-emitting type semiconductor laser; a first insulation layer that covers a side surface and a portion of an upper surface of a first columnar section including at least a portion of the surface-emitting type semiconductor laser; and a second insulation layer that covers a side surface and an upper surface of a second columnar section along an entire circumference thereof, the second columnar section including at least a portion of the rectification element.