发明名称 Optical mirror, optical scanner and laser machining apparatus using the same
摘要 <p>A reliable galvano-mirror employed for laser machining is disclosed. The mirror is far reduced its weight for getting a higher rotation. On the rear surface of the mirror, a lightweight rib-structure, which is formed from a mirror support beam centered across the surface and some ribs extending from the beam, holds the mirror. Against a distortion occurred in rotating at high speed, the mirror is provided with a high rigidity. And the mirror is structured integrally with the motor shaft holder. Besides, a slit is formed between the rib disposed close to the holder and the support beam centered across the rear surface of the mirror. Providing slit enables to minimize a local distortion caused by a stress from fastening screws to attach the mirror to the motor shaft. <IMAGE></p>
申请公布号 EP1094343(A2) 申请公布日期 2001.04.25
申请号 EP20000122895 申请日期 2000.10.20
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. 发明人 KARASAKI, HIDEHIKO;KAWAZOE, KIMIKO
分类号 B23K26/06;B23K26/08;G02B5/08;G02B7/182;G02B26/10;(IPC1-7):G02B5/09;B23K26/00;G02B26/12 主分类号 B23K26/06
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