Light source device and optical pickup device

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	Light source device and optical pickup device
其他题名	Light source device and optical pickup device
	SAKAMOTO, KATSUYA C/O KONICA MINOLTA OPTO, INC.; HASHIMURA, JUNJI C/O KONICA MINOLTA OPTO, INC.
	2009-04-01
专利权人	KONICA MINOLTA OPTO, INC.
公开日期	2009-04-01
授权国家	欧洲专利局
专利类型	发明申请
摘要	The present invention has a beam shaping element for converting the light flux from the light source 11 into a light flux whose emitting angle is almost equal and for projecting it, and a generation amount of the astigmatism generated by the temperature change is suppressed by a linear expansion of the beam shaping element.
其他摘要	本发明具有光束整形元件，用于将来自光源11的光通量转换成发射角几乎相等并用于投射它的光通量，并且通过线性抑制由温度变化产生的像散的产生量。光束整形元件的扩展。
主权项	A light source apparatus which is characterized in that: it has a light source by which a light flux whose emitting angle is different in a horizontal direction and in a vertical direction is projected, and a beam shaping element, for converting the light flux into a light flux whose emitting angle is almost equal and projecting, of a single lens formed of plastic in which a linear expansion coefficient n satisfies the following expression (1) 5.0 X 10 (1), and a part of the beam shaping element is fixed and arranged to the light source, so that an astigmatism generated following the refractive index change of the beam shaping element generated by the temperature change is suppressed by an interval change, which is generated by the linear expansion of the beam shaping element, between the light source and the incident surface of the beam shaping element.
申请日期	2004-08-10
专利号	EP1657715A4
专利状态	失效
申请号	EP2004771690
公开（公告）号	EP1657715A4
IPC 分类号	G11B7/135 \| G02B27/00 \| G02B13/00 \| G02B13/18 \| G02B27/09 \| G11B7/1372 \| G11B7/1378 \| G11B7/1392 \| G11B7/1398
专利代理人	-
代理机构	NICHOLLS, MICHAEL JOHN
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/53397
专题	半导体激光器专利数据库
作者单位	KONICA MINOLTA OPTO, INC.
推荐引用方式 GB/T 7714	SAKAMOTO, KATSUYA C/O KONICA MINOLTA OPTO, INC.,HASHIMURA, JUNJI C/O KONICA MINOLTA OPTO, INC.. Light source device and optical pickup device. EP1657715A4[P]. 2009-04-01.

条目包含的文件
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EP1657715A4.PDF（1080KB）	专利		开放获取	CC BY-NC-SA	请求全文