Light emitting element and method of manufacturing the same
US-2016308332-A1 · Oct 20, 2016 · US
Surface-emitting laser device, surface-emitting laser array, optical scanning apparatus and image forming apparatus
US8958449B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8958449-B2 |
| Application number | US-201314134718-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2013 |
| Priority date | Nov 27, 2008 |
| Publication date | Feb 17, 2015 |
| Grant date | Feb 17, 2015 |
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Abstract
Official abstract text for this publication.
A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate includes a p-side electrode surrounding an emitting area on an emitting surface to emit the laser light; and a transparent dielectric film formed on an outside area outside a center part of the emitting area and within the emitting area to lower a reflectance to be less than that of the center part. The outside area within the emitting area has shape anisotropy in two mutually perpendicular directions.
First claim
Opening claim text (preview).
The invention claimed is: 1. A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate and to include a current passing area in a mesa structure comprising: an electrode configured to surround an emitting area larger than the current passing area and to be provided on an emitting surface from which the laser light is emitted in the mesa structure, wherein a low reflectance area in the emitting area has shape anisotropy in two mutu…
Assignees
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Electricity · mapped topic
Electricity · mapped topic
Operations & Transport · mapped topic
Electricity · mapped topic
- H01S5/18391Primary
Electricity · mapped topic
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- What does patent US8958449B2 cover?
- A surface-emitting laser device configured to emit laser light in a direction perpendicular to a substrate includes a p-side electrode surrounding an emitting area on an emitting surface to emit the laser light; and a transparent dielectric film formed on an outside area outside a center part of the emitting area and within the emitting area to lower a reflectance to be less than that of the ce…
- Who is the assignee on this patent?
- Harasaka Kazuhiro, Sato Shunichi, Jikutani Naoto, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01S5/18391. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 17 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).