Light emitting device and projector

Patent metadata

Field	Value
Publication number	US-9105764-B2
Application number	US-201414272644-A
Country	US
Kind code	B2
Filing date	May 8, 2014
Priority date	Mar 9, 2011
Publication date	Aug 11, 2015
Grant date	Aug 11, 2015

Abstract

A light emitting device includes a first layer that generates light by injection current and forms a waveguide for the light, and an electrode that injects the current into the first layer, wherein the waveguide has a first region, a second region, and a third region, the first region and the second region connect at a first reflection part, the first region and the third region connect at a second reflection part, the second region and the third region extend to an output surface, a longitudinal direction of the first region is parallel to the output surface, and a first light output from the second region at the output surface and a second light output from the third region at the output surface are output in parallel to one another.

First claim

What is claimed is:

1. An illumination device comprising:
a first layer that generates light by injection current, and forms a waveguide for the light;
a second layer and a third layer that sandwich the first layer and suppress leakage of light; and
an electrode that injects the current into the first layer,
wherein the waveguide has a first region having an elongated shape, an elongated second region, and an elongated third region,
the first region and the second region c…

Assignees

• Seiko Epson Corp

Inventors

• Mochizuki Masamitsu

Classifications

• H10H20/819

  Electricity · mapped topic

• H10H20/042

  Electricity · mapped topic

• H10H20/81 Primary

  Electricity · mapped topic

• G02B19/0028

  Physics · mapped topic

• H01L33/02 Primary

  Electricity · mapped topic