发明申请
US20110128343A1 SURFACE-EMITTING LASER ELEMENT, SURFACE-EMITTING LASER ARRAY, OPTICAL SCANNER DEVICE, AND IMAGE FORMING APPARATUS
有权
表面发射激光元件，表面发射激光阵列，光学扫描仪器和图像形成装置
- 专利标题： SURFACE-EMITTING LASER ELEMENT, SURFACE-EMITTING LASER ARRAY, OPTICAL SCANNER DEVICE, AND IMAGE FORMING APPARATUS
- 专利标题（中）： 表面发射激光元件，表面发射激光阵列，光学扫描仪器和图像形成装置
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申请号： US12950365申请日： 2010-11-19
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公开(公告)号： US20110128343A1公开(公告)日： 2011-06-02
- 发明人: Shunichi SATO , Kazuhiro Harasaka , Naoto Jikutani
- 申请人： Shunichi SATO , Kazuhiro Harasaka , Naoto Jikutani
- 申请人地址： JP Tokyo
- 专利权人： RICOH COMPANY, LTD.
- 当前专利权人： RICOH COMPANY, LTD.
- 当前专利权人地址： JP Tokyo
- 优先权： JP2009-269358 20091127; JP2010-150759 20100701
- 主分类号： B41J2/435
- IPC分类号： B41J2/435 ; H01S5/00
摘要：
A disclosed surface-emitting laser element includes a resonator structure having an active layer, a first semiconductor multilayer mirror and a second semiconductor multilayer mirror configured to sandwich the resonator structure having the active layer, an electrode provided around an emission region of a light-emitting surface, and a dielectric film provided in a peripheral portion within the emission region and outside a central portion of the emission region to make a reflectance of the peripheral portion lower than a reflectance of the central portion. In the surface-emitting laser element, an outer shape of a portion where the electrode provided around the emission region of the light-emitting surface is in contact with a contact layer includes corners.
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