Surface emitting laser module, optical scanner, and image forming apparatus
US8697459B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02257
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a surface emitting laser module including a surface emitting laser element formed in a semiconductor substrate and having a surface emitting laser array that emits light in a direction perpendicular to a surface of the semiconductor substrate; a package having a region in which the semiconductor substrate is provided; and a metal cap having a cylindrical part formed of metal, the cylindrical part having a transparent substrate on one side thereof and a bottom part on the other side thereof bonded to the package. The transparent substrate is provided in the metal cap in such a manner as to be inclined with respect to the semiconductor substrate, the package has a metal part at a bonding part thereof bonded to the metal cap, and the metal part and the metal cap are bonded together by welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.