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	Measuring instrument for far visual field image of light emitting element
	NITSUTA SHIGEYUKI
	1987-11-28
著作权人	MITSUBISHI ELECTRIC CORP
专利号	JP1987274235A
国家	日本
文献子类	发明申请
其他题名	Measuring instrument for far visual field image of light emitting element
英文摘要	PURPOSE:To obtain a far visual field image with the stable quantity of light and to improve measurement accuracy by specifying the angle of light reception of the light incidence window of a light receiving waveguide, etc. CONSTITUTION:An optical fiber 6 which forms the light receiving waveguide is provided to a range of + or -90 deg. about the light emission point 2 of the laser light, etc., of a light emitting element 1 and a light receiver provided to the optical fiber 6 receives the far visual image of the light emission point 2 through the optical fiber. The light reception section of this optical fiber 6 is longitudinally long and the angle of light reception to the light output of the element 1 is set to >=3.5 deg. to stabilize the quantity of light reception and obtain the smooth far visual field image. consequently, measurement reproducibility is good and the measurement accuracy is improved.
公开日期	1987-11-28
申请日期	1986-05-22
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/85109]
专题	半导体激光器专利数据库
作者单位	MITSUBISHI ELECTRIC CORP
推荐引用方式 GB/T 7714	NITSUTA SHIGEYUKI. Measuring instrument for far visual field image of light emitting element. JP1987274235A. 1987-11-28.

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