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    • 7. 发明授权
    • Fibre optic device for homogenizing a laser beam
    • 用于使激光束均匀化的光纤装置
    • US6055346A
    • 2000-04-25
    • US111
    • 1998-01-23
    • Bruno GodardRobert Stehle
    • Bruno GodardRobert Stehle
    • B23K26/00B23K26/06G02B3/00G02B7/02G02B15/00G02B27/09G02B6/32
    • G02B27/0961B23K26/0604B23K26/066G02B27/09G02B27/0905
    • An optical device for homogenizing a laser beam includes a plurality of abutting front lenses (LF.sub.nm) for dividing the laser beam to be homogenized into m.times.n laser beams, each having a substantially uniform cross section, and a substantially homogeneous energy distribution; a first intermediate plane (PI1) located in the focal plane of the front lenses (LF.sub.mn) and having a plurality of entrance pupils (PE.sub.ij) each of which is arranged at the focus of a front lens (LF.sub.mn) selected among said plurality of front lenses (LF.sub.mn); a second intermediate plane (PI2) having a plurality of exit pupils (PS.sub.ij), a collection lens (LC) capable of collecting the beams from the plurality of exit pupils (PS.sub.ij); and optical transmission means for individually transmitting the light beams from the plurality of entrance pupils (PS.sub.ij) to the plurality of exit pupils (PS.sub.kj).
    • PCT No.PCT / FR96 / 01252 Sec。 371日期1998年1月23日 102(e)日期1998年1月23日PCT提交1996年8月6日PCT公布。 公开号WO97 / 07424 日期1997年2月27日激光束均匀化的光学装置包括多个邻接的前透镜(LFnm),用于将待均匀的激光束分成m×n个激光束,每个激光束具有基本上均匀的横截面,并且基本均匀的能量分布 ; 位于前透镜(LFmn)的焦平面中的第一中间平面(PI1),并且具有多个入射光瞳(PEij),每个入射光瞳被布置在从所述多个前视镜中选择的前透镜(LFmn)的焦点处 镜头(LFmn); 具有多个出射光瞳(PSij)的第二中间平面(PI2),能够收集来自多个出射瞳孔(PSij)的光束的收集透镜(LC); 以及光传输装置,用于将来自多个入射光瞳(PSij)的光束单独传输到多个出射光瞳(PSkj)。
    • 8. 发明授权
    • Gas laser generator
    • 气体激光发生器
    • US4011525A
    • 1977-03-08
    • US645775
    • 1975-12-31
    • Bruno Godard
    • Bruno Godard
    • H01S3/03H01S3/097H01S3/0973H01S3/22
    • H01S3/0973
    • Gas laser generator comprising a gaseous active medium, at least one electric excitation line formed by an insulating plate inserted between a first and second metallic plate, the first plate having a slot enclosing the gaseous medium, a circuit for setting up a progressive current wave in the line. The plates are cut in the shape of superimposed half parabolas. A variant consists in producing the generator in the form of two half parabolas such as above but insulated from each other and brought to different potentials. The invention is implemented in high-power lasers.
    • 气体激光发生器,其包括气体活性介质,至少一个电绝缘板形成的电激励线,该绝缘板插入在第一和第二金属板之间,第一板具有封闭气体介质的槽,用于设置逐行电流波的电路 线。 板被切成叠加的半抛物线的形状。 一种变型包括以如上所述的两个半抛物线的形式生产发生器,但彼此绝缘并带来不同的电位。 本发明在大功率激光器中实现。
    • 9. 发明授权
    • Optical device for homogenizing a laser beam
    • 用于使激光束均匀化的光学装置
    • US06014260A
    • 2000-01-11
    • US1
    • 1998-01-21
    • Bruno GodardRobert Stehle
    • Bruno GodardRobert Stehle
    • B23K26/00B23K26/06G02B3/00G02B7/02G02B15/00G02B27/09G02B27/10G02B3/02
    • G02B27/0961B23K26/0604B23K26/066G02B27/09G02B27/0905
    • An optical device for homogenizing a laser beam is described. Such a device is commonly used in the surface treatment of an object. The device consists of front lenses that are bonded together to form an assembly of lenses that breaks the laser light into multiple beams. This results in the homogenization of the gaussian profile of the beam intensity as viewed perpendicular to the beam's propagation. Advantageously the matrix of lenses is formed using groves or bevels in a manner that minimizes losses resulting from light impinging on glue disposed upon the entire lateral surface of the front lenses. In the invention gaps between front lenses that cause interference with the light path are eliminated. This gap free bonding is accomplished by filling the groves or bevels with glue, inserting a rod or wire into the grove to assemble the front lenses in a support frame, bonding a grill to assembled front lenses, or by using a combination of gluing with a support frame.
    • PCT No.PCT / FR96 / 01251 Sec。 371日期1998年1月21日 102(e)日期1998年1月21日PCT 1996年8月6日PCT公布。 出版物WO97 / 07423 日期:1997年2月27日描述了用于使激光束均匀化的光学装置。 这种装置通常用于物体的表面处理。 该装置由前透镜结合在一起以形成将激光切割成多个光束的透镜组件。 这导致垂直于光束传播观察的束强度的高斯分布的均匀化。 有利的是,透镜的矩阵使用凹槽或斜面来形成,使得最小化光照射在设置在前透镜的整个侧表面上的胶上的损耗。 在本发明中,消除了导致与光路干涉的前透镜之间的间隙。 这种无间隙粘合是通过用胶水填充凹槽或斜面来完成的,将棒或线插入树丛中以将前透镜组装在支撑框架中,将格栅粘合到组装的前透镜上,或者通过使用胶合与 支持框架。