QQ客服 官方微博 反馈留言

	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
著作权人	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
专利号	WO2007099842A1
国家	世界知识产权组织
文献子类	发明申请
其他题名	Optical head device, optical information device, computer, optical disc player, optical disc server, car navigation system and optical disc recorder
英文摘要	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).
公开日期	2007-09-07
申请日期	2007-02-22
状态	未确认
内容类型	专利
源URL	[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. 2007-09-07.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。