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	Light coupling device to couple a light source to an optical fiber
	TAKAHASHI, MITSUO
	1996-12-24
著作权人	SEIKOH GIKEN CO., LTD.
专利号	US5588081
国家	美国
文献子类	授权发明
其他题名	Light coupling device to couple a light source to an optical fiber
英文摘要	A light coupling device for coupling a light source to an optical fiber. The device includes a first cylindrical sleeve carrying a GRIN lens and a ferrule. The ferrule receives the optical fiber. Movability of the ferrule along the optical axis of a first through-hole in the first sleeve allows a determination of a focal length between the GRIN lens and an incident end face of the optical fiber. A first setting means sets a relative position of the ferrule with respect to the first sleeve for holding the two in position with respect to one another when the GRIN lens and the incident end face of the optical fiber are separated by a distance equal to the focal length therebetween. The device further includes a second cylindrical sleeve. The first sleeve is coaxially disposed within a second through-hole of the second sleeve, and a light source unit is concentrically disposed within the second through-hole. Movability of the first sleeve along the optical axis of the second through-hole allows a determination of a focal length between the light source unit and the GRIN lens. A second setting means is disposed on the second sleeve for setting a relative position of the first sleeve with respect to the second sleeve for holding the two in position with respect to one another when the light source unit and the GRIN lens are separated by a distance equal to the focal length therebetween.
公开日期	1996-12-24
申请日期	1995-05-24
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/36258]
专题	半导体激光器专利数据库
作者单位	SEIKOH GIKEN CO., LTD.
推荐引用方式 GB/T 7714	TAKAHASHI, MITSUO. Light coupling device to couple a light source to an optical fiber. US5588081. 1996-12-24.

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