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	Optical machining device
	FUJII, KOJI; HIRASAWA, KAZUSHIGE; NAGAYASU, DOKEI; RYUDO, MAKOTO
	2004-09-14
著作权人	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
专利号	US6791061
国家	美国
文献子类	授权发明
其他题名	Optical machining device
英文摘要	An optical processing apparatus has high reliability and stable welding quality. In the processing apparatus, a semiconductor laser and an optical system are disposed to a flow path of processing gas. The gas protects the semiconductor laser and the optical system from moisture and dust while cooling them. In addition, the apparatus also leads the processing gas to flow through a holder of the optical system to increase cooling effect for the optical system and to improve an optical accuracy. The apparatus guides the processing gas along a surface of a cover glass inside a nozzle ejecting the processing gas to a workpiece, to prevent the surface of the cover glass from being damaged and stained. The processing gas is ejected in a direction coaxial with a direction of output light, so as to shield an area being processed.
公开日期	2004-09-14
申请日期	2002-11-25
状态	失效
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/35509]
专题	半导体激光器专利数据库
作者单位	MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
推荐引用方式 GB/T 7714	FUJII, KOJI,HIRASAWA, KAZUSHIGE,NAGAYASU, DOKEI,et al. Optical machining device. US6791061. 2004-09-14.

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