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公开(公告)号:US5850068A
公开(公告)日:1998-12-15
申请号:US867813
申请日:1997-06-03
CPC分类号: B23K26/046
摘要: When a laser beam interacts with a workpiece to be welded by the beam, a plume of optical radiation is generated. An apparatus and method is disclosed in which radiation from the plume is received back through a beam delivery path comprising optical elements (L1,L2) having chromatic aberration. This alters the focus of different spectral bands of the plume radiation and a discriminating aperture is formed by a face of an optical fibre (3). After passing through the fibre, the plume radiation is separated from any laser radiation and the respective powers of the different spectral bands are measured (5). By subtraction, an error signal is obtained which is used to control the focus of the laser beam.
摘要翻译: 当激光束与待焊接的工件相互作用时,产生一束光辐射。 公开了一种装置和方法,其中来自羽流的辐射通过包括具有色差的光学元件(L1,L2)的光束传递路径被接收回来。 这改变了羽流辐射的不同谱带的焦点,并且由光纤(3)的面形成鉴别孔。 通过光纤后,羽流辐射与任何激光辐射分离,并测量不同光谱带的相应功率(5)。 通过减法,获得用于控制激光束焦点的误差信号。
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公开(公告)号:US20130180959A1
公开(公告)日:2013-07-18
申请号:US13824883
申请日:2011-09-26
CPC分类号: B23K26/354 , B23K26/0006 , B23K26/126 , B23K26/3584 , B23K26/364 , B23K26/40 , B23K2101/35 , B23K2103/05 , B23K2103/08 , B23K2103/26 , B23K2103/42 , B23K2103/50 , G01D5/34707
摘要: A method of forming an optical device comprises applying a laser beam to a target area of the surface so as to selectively heat material of the surface thereby to provide transfer of material due to a surface tension gradient, wherein the surface is such that, when liquid, parts of the surface at higher temperatures have a higher surface tension than adjacent parts of the surface at lower temperatures.
摘要翻译: 形成光学器件的方法包括将激光束施加到表面的目标区域,以便选择性地加热表面的材料,从而由于表面张力梯度而提供材料的转移,其中表面使得当液体 ,在较高温度下表面的部分表面张力高于较低温度下表面的相邻部分。
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公开(公告)号:US10226840B2
公开(公告)日:2019-03-12
申请号:US13824883
申请日:2011-09-26
IPC分类号: B23K26/00 , B23K26/354 , B23K26/12 , G01D5/347 , B23K26/364 , B23K26/40 , B23K26/352 , B23K101/34 , B23K103/04 , B23K103/08 , B23K103/18 , B23K103/00
摘要: A method of forming an optical device comprises applying a laser beam to a target area of the surface so as to selectively heat material of the surface thereby to provide transfer of material due to a surface tension gradient, wherein the surface is such that, when liquid, parts of the surface at higher temperatures have a higher surface tension than adjacent parts of the surface at lower temperatures.
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公开(公告)号:US20140305791A1
公开(公告)日:2014-10-16
申请号:US13983192
申请日:2012-02-03
IPC分类号: B01J19/12
CPC分类号: B01J19/127 , B01J19/121 , C23C18/1612 , C23C18/1658 , C23C18/1667 , C23C18/1868 , C23C18/1893 , C23C18/204 , C23C18/2066 , C23C18/2086 , C23C18/30 , C23C18/34 , C23C18/40 , C23C18/44 , C23C18/52
摘要: The invention provides a method of reducing metal ions (3, 204) present on a substrate (100) comprising contacting the metal ions with a material (2, 201, 202) capable of reducing the metal ions to metal atoms (6, 9) upon exposure to visible light, and exposing the material to visible light (1) whereby to generate metal atoms from the metal ions.
摘要翻译: 本发明提供一种减少存在于基底(100)上的金属离子(3,204)的方法,包括使金属离子与能够将金属离子还原成金属原子(6,9)的材料(2,201,202)接触, 暴露于可见光,并将材料暴露于可见光(1),从而从金属离子产生金属原子。
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