发明授权
US06967979B2 Semiconductor laser device, optical pickup and fabrication method of semiconductor laser device
失效
半导体激光器件，半导体激光器件的光学拾取和制造方法
- 专利标题： Semiconductor laser device, optical pickup and fabrication method of semiconductor laser device
- 专利标题（中）： 半导体激光器件，半导体激光器件的光学拾取和制造方法
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申请号： US09971207申请日： 2001-10-04
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公开(公告)号： US06967979B2公开(公告)日： 2005-11-22
- 发明人: Takehiro Shiomoto , Kenzo Nozaki , Toshihiko Yoshida , Masayuki Honda
- 申请人： Takehiro Shiomoto , Kenzo Nozaki , Toshihiko Yoshida , Masayuki Honda
- 申请人地址： JP Osaka
- 专利权人： Sharp Kabushiki Kaisha
- 当前专利权人： Sharp Kabushiki Kaisha
- 当前专利权人地址： JP Osaka
- 代理机构： Edwards & Angell, LLP
- 代理商 William J. Daley, Jr.; David G. Conlin
- 优先权： JP2000-307462 20001006; JP2001-112770 20010411
- 主分类号： H01S5/00
- IPC分类号： H01S5/00 ; H01S5/02 ; H01S5/022
摘要：
A semiconductor laser device and optical pickup in which the reflectance of the side beam at a header portion will not adversely affect the characteristics of the optical pickup, and superior in productivity, and a method of fabricating such a semiconductor laser device are obtained. A reflector is attached on a side beam incident region of a leading end plane of a header mounted with a laser chip that emits a laser beam. Said side beam is one of the two side beams generated by the reflected ±first order beams and fed back through the optical system returning towards the header portion to strike the side beam incident region. The reflector reflects side beam outside the optical system.