Title:
METHOD FOR MANUFACTURING OPTICAL HEAD DEVICE, AND THE OPTICAL HEAD DEVICE
Document Type and Number:
Japanese Patent JP3970819
Kind Code:
B2
Abstract:
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.
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.
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Inventors:
Hisahiro Ishihara
Katsuya Moriyama
Fujimori Yasuo
Katsuya Moriyama
Fujimori Yasuo
Application Number:
JP2003304539A
Publication Date:
September 05, 2007
Filing Date:
August 28, 2003
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
G11B7/08; G11B7/135; G11B7/00; G11B7/09; G11B7/12; G11B7/22; (IPC1-7): G11B7/08; G11B7/09; G11B7/135; G11B7/22
Domestic Patent References:
| JP2003067944A | ||||
| JP3095434Y2 | ||||
| JP11073666A | ||||
| JP62264436A | ||||
| JP2002288863A | ||||
| JP2001134952A | ||||
| JP2218028A |
Attorney, Agent or Firm:
Shiro Yokozawa