发明名称 |
DEVICE FOR PROCESSING INFORMATION DISK |
摘要 |
PURPOSE:To improve the manufacturing yield and to shorten the processing time by executing laser beam scanning with a laser beam scanning device and processing an information disk. CONSTITUTION:Positional mark signal on the information disk is detected with a telecamera 4. Reference position signal on the information disk is calculated with a controller 2 from output of the telecamera 4 and based on this, the necessary signal to scanning of the laser beam is generated. The laser beam scanning device 3 is controlled with the controller 2. The laser beam is made to scan with the laser beam scanning device 3 to process the information disk. By this method, the working space in manufacturing site can be reduced. |
申请公布号 |
JPH02280983(A) |
申请公布日期 |
1990.11.16 |
申请号 |
JP19890100152 |
申请日期 |
1989.04.21 |
申请人 |
HITACHI LTD |
发明人 |
SAKUMA TOSHIJI;KODERA YOSHIE;MURANAKA MASAYUKI;MIURA HIROTO;FUJII TAKASHI |
分类号 |
B23K26/00;B23K26/14;G11B5/84 |
主分类号 |
B23K26/00 |
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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