发明名称 METHOD FOR MANUFACTURING OPTICAL HEAD DEVICE, AND THE OPTICAL HEAD DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical head device, capable of easily adjusting a spot position on the optical recording medium of a sub-beam generated by a diffraction element even in the case of being miniaturized, and the optical head device. <P>SOLUTION: When the optical head device is manufactured, two light emitting elements 21 and 22, and two diffraction elements 71 and 72 or the like are integrated as an optical module 3, a relative positional relation between the two diffraction elements 71 and 72 on the optical module 3 is adjusted, and then the position of the entire optical module 3 is adjusted on a device frame 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005078661(A) 申请公布日期 2005.03.24
申请号 JP20030304539 申请日期 2003.08.28
申请人 SANKYO SEIKI MFG CO LTD 发明人 ISHIHARA HISAHIRO;MORIYAMA KATSUYA;FUJIMORI YASUO
分类号 G11B7/08;G11B7/00;G11B7/09;G11B7/12;G11B7/135;G11B7/22 主分类号 G11B7/08
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