Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder

OPT OpenIR > 半导体激光器专利数据库

	Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder
其他题名	Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder
	SANO, KOUSEI; KOMMA, YOSHIAKI; WAKABAYASHI, KANJI; WADA, HIDENORI; MATSUZAKI, KEIICHI; TANAKA, TOSHIYASU
	2007-09-07
专利权人	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
公开日期	2007-09-07
授权国家	世界知识产权组织
专利类型	发明申请
摘要	An optical head device is provided with a blue semiconductor laser (203) which emits light having a first wavelength; an LDPD module (205) for DVD, which emits light having a second wavelength; a first objective lens (201) for collecting light from the blue semiconductor laser (203) to an optical disc (707); a second objective lens (202) for collecting light from the LDPD module (205) to an optical disc (707); a photodetector (204) for detecting light returned from the optical disc (707); and a laser driver (410) for controlling emission of the blue semiconductor laser (203) and that of the LDPD module (205). A laser driver (410) is arranged on a narrower angle side where an angle formed between a virtual first straight line (L1), which connects the revolution center of a motor (112) with the blue semiconductor laser (203), and a virtual second straight line (L2), which connects the revolution center of the motor (112) with the LDPD module (205), is narrower. The laser driver (410) is positioned closer to the optical disc (707) than the blue semiconductor laser (203) and the LDPD module (205).
其他摘要	一种光学头装置，具有发射具有第一波长的光的蓝色半导体激光器（203）;用于DVD的LDPD模块（205），其发射具有第二波长的光;第一物镜（201），用于将来自蓝色半导体激光器（203）的光收集到光盘（707）;第二物镜（202），用于将来自LDPD模块（205）的光收集到光盘（707）;光检测器（204），用于检测从光盘（707）返回的光;激光驱动器（410）用于控制蓝色半导体激光器（203）和LDPD模块（205）的发射。激光驱动器（410）布置在较窄的角度侧，其中在连接电动机（112）的旋转中心的虚拟第一直线（L1）与蓝色半导体激光器（203）之间形成的角度与虚拟连接电动机（112）的旋转中心和LDPD模块（205）的第二直线（L2）更窄。激光驱动器（410）比蓝色半导体激光器（203）和LDPD模块（205）更靠近光盘（707）。
主权项	-
申请日期	2007-02-22
专利号	WO2007099842A1
专利状态	未确认
申请号	PCT/JP2007/053253
公开（公告）号	WO2007099842A1
IPC 分类号	G11B7/125 \| G11B7/004 \| G11B7/135 \| G11B7/04
专利代理人	KOTANI, ETSUJI
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/58018
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
推荐引用方式 GB/T 7714	SANO, KOUSEI,KOMMA, YOSHIAKI,WAKABAYASHI, KANJI,et al. Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder. WO2007099842A1[P]. 2007-09-07.