发明名称 |
Surface-emitting laser device, surface-emitting laser array, optical scanning apparatus and image forming apparatus |
摘要 |
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. |
申请公布号 |
US8649407(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US201313887778 |
申请日期 |
2013.05.06 |
申请人 |
HARASAKA KAZUHIRO;SATO SHUNICHI;JIKUTANI NAOTO;RICOH COMPANY, LTD. |
发明人 |
HARASAKA KAZUHIRO;SATO SHUNICHI;JIKUTANI NAOTO |
分类号 |
H01S5/00 |
主分类号 |
H01S5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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