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 |
EP2351172(A1) |
申请公布日期 |
2011.08.03 |
申请号 |
EP20090829185 |
申请日期 |
2009.11.24 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
HARASAKA, KAZUHIRO;SATO, SHUNICHI;JIKUTANI, NAOTO |
分类号 |
H01S5/183;H01S5/022;H01S5/343 |
主分类号 |
H01S5/183 |
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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