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	Device for recording and reading data on a multi-layer optical disc
	KIYKO, VADIM VENIAMINOVICH
	2013-09-03
著作权人	EVERHOST INVESTMENTS LIMITED
专利号	NZ598845B
国家	新西兰
文献子类	授权发明
其他题名	Device for recording and reading data on a multi-layer optical disc
英文摘要	598845 Disclosed is a device for recording/reading information on a multilayer optical disc (1). The device includes an optical disc positioning system (6), a source of radiation (3) with wavelength λ1, a source of radiation (5) with wavelength λ2 and a focusing system (4) that is arranged such that its optical axis is perpendicular to the flat surface of the multilayer optical disc (1) and is within a focusing system positioning means. An illumination system is arranged such that its optical axis is perpendicular to the optical axis of the focusing system (4). A spectrum splitter (14) is located between the source of radiation with wavelength λ1 and the focusing system (4), as well as an optical sensor (8) optically coupled with the focusing system (4) via the spectrum splitter (14). Also included is a control unit (9) electrically coupled with the sources of radiation (3, 5) with wavelengths λ1 and λ2, and the optical sensor (8). The source of radiation (5) with wavelength λ2 is designed as a strip of laser diodes whose optical axes are parallel and lie in the same plane, while the illumination system has components serially arranged along the optical axis. The components include a cylindrical lens (11) which is arranged such that the generatrix of its cylindrical surface is parallel to the plane in which the p-n junctions of the laser diodes are located, a focusing lens and a stabilizing circuit that includes a beam splitter that is placed between the focusing lens (15) and the cylindrical lens (11). A second optical sensor is optically coupled with the focusing lens (15) via the beam splitter (14), and a stabilizer is coupled with the focusing lens (15). The stabilizer and second optical sensor are electrically connected to the control unit.
公开日期	2013-09-03
申请日期	2010-09-09
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/32874]
专题	半导体激光器专利数据库
作者单位	EVERHOST INVESTMENTS LIMITED
推荐引用方式 GB/T 7714	KIYKO, VADIM VENIAMINOVICH. Device for recording and reading data on a multi-layer optical disc. NZ598845B. 2013-09-03.

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