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	Optical information processor
	NAGASHIMA MICHIYOSHI; YOSHIDA TOMIO; NAKADA AKIFUMI; HARIKAE SHIYUNJI; SATOU TOSHIO
	1981-04-23
著作权人	MATSUSHITA ELECTRIC IND CO LTD
专利号	JP1981044125A
国家	日本
文献子类	发明申请
其他题名	Optical information processor
英文摘要	PURPOSE:To reduce the size of an optical system by providing a convex cylindrical lens, which collimates a light beam into nearly circular parallel light by focusing it, between a fully reflecting mirror and objective lens. CONSTITUTION:Between fully reflecting mirror 15 changing a light beam in direction and objective lens 16, concave cylindrical lens 14 is arranged which while a light beam is parallel in either direction of mutually orthogonal directions perpendicular to the optical axis of the light beam, focues a light beam spread in the other direction to obtain nearly circular parallel light beams in both directions. The function of reducing the light beam to an extremely small spot is the same. The leading- in range of focusing control can be expanded by reducing the distance between convex cylindrical lens 14 and objective lens 16. Therefore, the size of the optical system can be reduced in this constitution.
公开日期	1981-04-23
申请日期	1979-09-14
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/59251]
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC IND CO LTD
推荐引用方式 GB/T 7714	NAGASHIMA MICHIYOSHI,YOSHIDA TOMIO,NAKADA AKIFUMI,et al. Optical information processor. JP1981044125A. 1981-04-23.

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