Optical pickup device and optical disc apparatus applying the same

OPT OpenIR > 半导体激光器专利数据库

	Optical pickup device and optical disc apparatus applying the same
其他题名	Optical pickup device and optical disc apparatus applying the same
	PARK, SEONG-SU; PARK, SOO-HAN; HONG, JUNG-WOO; PARK, SE-JUNE; SHIN, DONG-JIN; MORISHITA, ICHIRO
	2012-07-12
专利权人	SAMSUNG ELECTRONICS CO., LTD.
公开日期	2012-07-12
授权国家	美国
专利类型	发明申请
摘要	An optical pickup device is provided. The device includes a semiconductor laser light source which outputs linearly-polarized light having an elliptical shape, an objective lens which focuses light outputted from the semiconductor laser light source, forming an optical spot on an optical disc; and a polarization plate which is disposed placed on an optical path between the semiconductor laser light source and the objective lens, and which polarizes the light outputted from the semiconductor laser light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to or perpendicular to a major axis of the elliptical shape of the light.
其他摘要	提供一种光学拾取装置。该装置包括：半导体激光光源，其输出具有椭圆形状的线性偏振光;物镜，其聚焦从半导体激光光源输出的光，在光盘上形成光点;偏振板设置在半导体激光光源和物镜之间的光路上，偏振半导体激光光源输出的光并透射椭圆偏振光，其中偏振板设置成使得由偏振板透射的光的椭圆偏振的长轴平行于或垂直于光的椭圆形状的长轴。
主权项	An optical pickup device comprising: a light source which outputs linearly-polarized light having an elliptical shape; a lens which focuses light outputted from the light source; and a polarization plate which is disposed on an optical path between the light source and the lens, and which polarizes the light outputted from the light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to a major axis of the elliptical shape of the light.
申请日期	2011-11-23
专利号	US20120176881A1
专利状态	失效
申请号	US13/303393
公开（公告）号	US20120176881A1
IPC 分类号	G11B7/135
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/58734
专题	半导体激光器专利数据库
作者单位	SAMSUNG ELECTRONICS CO., LTD.
推荐引用方式 GB/T 7714	PARK, SEONG-SU,PARK, SOO-HAN,HONG, JUNG-WOO,et al. Optical pickup device and optical disc apparatus applying the same. US20120176881A1[P]. 2012-07-12.