Invention Grant
US08424030B2 Optical pickup device and laser welding structure of optical components
失效
光学元件的光学拾取装置和激光焊接结构
- Patent Title: Optical pickup device and laser welding structure of optical components
- Patent Title (中): 光学元件的光学拾取装置和激光焊接结构
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Application No.: US12421701Application Date: 2009-04-10
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Publication No.: US08424030B2Publication Date: 2013-04-16
- Inventor: Satoshi Arai , Hiroaki Furuichi , Mitsuo Satake
- Applicant: Satoshi Arai , Hiroaki Furuichi , Mitsuo Satake
- Applicant Address: JP Iwate
- Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee: Hitachi Media Electronics Co., Ltd.
- Current Assignee Address: JP Iwate
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: JP2008-205199 20080808
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G02B7/02
Abstract:
To provide a reliable optical pickup device, a pickup case and an optical component including a lens are fixed by laser welding to increase the welding strength and reduce the positional displacement due to environmental changes. In a laser welded portion between a pickup case and an optical component including a lens, the optical component is provided with a joint portion having a convex protrusion at a portion to be joined to the pickup case. Laser beam irradiation is performed extending longer than the protrusion to form a thick welded portion at an end of the protrusion, in order to increase welding strength between the optical component and the pickup case.
Public/Granted literature
- US20100034070A1 OPTICAL PICKUP DEVICE AND LASER WELDING STRUCTURE OF OPTICAL COMPONENTS Public/Granted day:2010-02-11
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