Arrangement for machining workpieces by means of a laser beam by
building up a plasma that is to be kept within limits
    2.
    发明授权
    Arrangement for machining workpieces by means of a laser beam by building up a plasma that is to be kept within limits 失效
    用于通过建立待保持在限度内的等离子体通过激光束加工工件的布置

    公开(公告)号:US4839493A

    公开(公告)日:1989-06-13

    申请号:US862235

    申请日:1986-04-17

    IPC分类号: B23K26/00 B23K26/03

    CPC分类号: B23K26/032

    摘要: In machining a workpiece, maximal absorption of laser irradiation in the workpiece is achieved by a minimal interference by optical back-coupling and plasma effects is achieved by continuously determining the actual value of the laser irradiation and continuously sensing stochastic processes taking place in the machining zone and in response to such measuring and sensing, controlling the modulation of laser irradiation.

    摘要翻译: PCT No.PCT / EP85 / 00328 Sec。 一九八六年四月十七日 102(e)日期1986年4月17日PCT提交1985年7月5日PCT公布。 公开号WO86 / 00552 日期:1986年1月30日。在加工工件时,通过光学反向耦合的最小干扰实现激光照射在工件中的最大吸收,并且通过连续地确定激光照射的实际值并连续感测随机 在加工区域发生的过程以及响应于这种测量和感测,控制激光照射的调制。

    Laser
    3.
    发明授权
    Laser 失效
    激光

    公开(公告)号:US5148443A

    公开(公告)日:1992-09-15

    申请号:US601757

    申请日:1990-12-17

    IPC分类号: H01S3/081

    CPC分类号: H01S3/081 H01S3/08059

    摘要: A laser has a beam path multiply folded by two resonator end mirrors and ateast one reflector retroreflectively folding the laser beam. The laser axis is parallel displaced to the axis of a further reflector. In order to improve the laser beam quality while retaining its comparatively low adjustment sensitivity, the beam path is folded at least twice with the retroreflective reflector.

    摘要翻译: PCT No.PCT / DE89 / 00250 Sec。 371 1990年12月17日第 102(e)日期1990年12月17日PCT 1989年4月21日PCT PCT。 第WO89 / 10642号公报 日期为1989年11月2日。激光具有通过两个谐振器端面镜折叠的光束路径和至少一个反射器来反射折叠激光束。 激光轴平行移动到另一反射器的轴线上。 为了提高激光束质量同时保持其相对较低的调节灵敏度,光束路径与回射反射器折叠至少两次。

    Gas laser
    4.
    发明授权
    Gas laser 失效
    气体激光

    公开(公告)号:US5014282A

    公开(公告)日:1991-05-07

    申请号:US306029

    申请日:1989-01-23

    摘要: Gas laser, particularly carbon dioxide laser, with a component-free gas dharge chamber between high voltage electrodes, with a beam of two resonator end mirrors multiply folded between facing reflectors and with openings of the outwardly sealed gas discharge chamber permitting the inflow and outflow of gas. A gas laser with the aforementioned features is so constructed for the purpose of increasing its efficiency, that there is a continuous gas flow in the gas discharge chamber and that the gas flow direction is parallel to the longitudinal axis of the component-free gas discharge chamber located between the reflectors.

    摘要翻译: PCT No.PCT / DE88 / 00303 Sec。 371日期1989年1月23日 102(e)日期1989年1月23日PCT提交1988年5月20日PCT公布。 出版物WO88 / 09578 日期:1988年12月1日。激光器,特别是二氧化碳激光器,在高压电极之间具有无分量的气体放电室,两个共振器端镜的光束在相对的反射器之间折叠并且与向外密封的气体放电 允许气体的流入和流出。 具有上述特征的气体激光器被构造成用于提高其效率,气体放电室中存在连续的气体流动,并且气体流动方向平行于无成分气体放电室的纵向轴线 位于反射体之间。

    Apparatus for determining the radial intensity distribution of laser
radiation
    5.
    发明授权
    Apparatus for determining the radial intensity distribution of laser radiation 失效
    用于确定激光辐射的径向强度分布的装置

    公开(公告)号:US5514867A

    公开(公告)日:1996-05-07

    申请号:US50701

    申请日:1987-07-13

    摘要: A waveguide is arranged in radial extension on a support mounted in rotary manner and whose pivot pin is parallel to the laser beam axis. The outer end thereof intersects the laser beam during a rotation of the support and in each case detects a partial beam of the laser radiation. By means of the waveguide, said partial beam is supplied to a detector, which is arranged in fixed manner in the pivot pin of the support. A hollow waveguide or light guide serves as the waveguide. A parallel displacement of the pivot pin of the support is possible by means of a stepping motor to enable the complete beam profile to be determined by a plurality of sections through the laser beam. In place of the stepping motor, the support can be provided with several waveguides of different lengths, distributed with the same angular spacing over the support circumference and which successively supply the detected partial beams to the same detector.

    摘要翻译: PCT No.PCT / DE86 / 00358 Sec。 371日期1987年7月13日 102(e)日期1987年7月13日PCT PCT 1986年9月6日PCT公布。 第WO87 / 01447号公报 日期1987年3月12日。波导以径向延伸布置在以旋转方式安装的支撑件上,并且其枢轴销平行于激光束轴线。 在支撑件旋转期间,其外端与激光束相交,并且在每种情况下都检测激光辐射的部分光束。 通过波导,所述部分光束被提供给检测器,该检测器以固定方式布置在支撑件的枢转销中。 中空波导或光导用作波导。 通过步进电机可以使支撑件的枢转销的平行位移能够通过穿过激光束的多个部分来确定完整的光束轮廓。 代替步进电机,支撑件可以设置有不同长度的多个波导,在支撑圆周上以相同的角度间隔分布,并且将检测到的部分光束依次提供给相同的检测器。

    Apparatus for measuring the radiation capacity of lasers
    6.
    发明授权
    Apparatus for measuring the radiation capacity of lasers 失效
    用于测量激光辐射能力的装置

    公开(公告)号:US5209567A

    公开(公告)日:1993-05-11

    申请号:US623929

    申请日:1991-02-12

    摘要: Apparatus for measuring the radiation power of lasers, particularly infrared lasers, with a thermal detector, which supplies a power-caused measurement signal.In order to be able to measure rapid laser radiation power changes, the apparatus is so constructed that there is a device which locally integrates the laser radiation and to which, apart from the thermal detector, is connected at least one further detector, which is able to detect radiation power changes with a larger band width than the band width detectable by the thermal detector and that there is a circuit combining the measurement signals of the detectors.

    摘要翻译: PCT No.PCT / DE89 / 00402 Sec。 371日期1991年2月12日 102(e)日期1991年2月12日PCT提交1989年6月16日PCT公布。 出版物WO89 / 12806 日期1989年12月28日。用于通过热检测器测量激光器,特别是红外激光器的辐射功率的装置,其提供功率引起的测量信号。 为了能够测量快速的激光辐射功率变化,该装置被构造成使得存在局部集成激光辐射的装置,除了热检测器之外,还连接有至少一个另外的检测器,其可以 检测具有比由热检测器可检测的带宽更大的带宽的辐射功率变化,并且存在组合检测器的测量信号的电路。

    Aerodynamic window for a gas laser
    7.
    发明授权
    Aerodynamic window for a gas laser 失效
    气动窗用于气体激光

    公开(公告)号:US5185760A

    公开(公告)日:1993-02-09

    申请号:US635619

    申请日:1991-02-28

    IPC分类号: H01S3/08 H01S3/034

    CPC分类号: H01S3/0343

    摘要: Aerodynamic window for a gas laser, whose active chamber emits a focussed ser beam and is flow connected by means of a beam passage opening with a window chamber connected to a vacuum pump and which has a beam exit opening in an outer area which is preferably under atmospheric pressure. In order to reduce the pumping power necessary for the aerodynamic window and improve the laser beam quality, the window is so constructed that the laser beam emitted by the active chamber has a first focus in the vicinity of the beam passage opening and is deflected onto a focussing mirror arranged in the window chamber and which gives the laser beam leaving the latter a second focus located in the vicinity of the beam exit opening.

    摘要翻译: PCT No.PCT / DE89 / 00432 Sec。 371日期1991年2月28日 102(e)日期1991年2月28日PCT Filed 1989年6月29日PCT Pub。 第WO90 / 00319号公报 日期1990年1月11日。气体激光器的动力学窗口,其活动室发射聚焦激光束,并且通过光束通道开口流动连接,窗口室连接到真空泵,并且具有光束出射开口 优选在大气压下的外部区域。 为了减小空气动力学窗口所需的泵送功率并提高激光束质量,窗口被构造成使得由主动室发射的激光束在光束通道开口附近具有第一焦点并被偏转到 聚焦反射镜布置在窗室中,并且使得激光束离开光束离开光束出口的附近的第二焦点。

    Device for providing the cross-section of the radiation emitted by
several solid-state and/or semiconductor diode lasers with a specific
geometry
    8.
    发明授权
    Device for providing the cross-section of the radiation emitted by several solid-state and/or semiconductor diode lasers with a specific geometry 有权
    用于提供具有特定几何形状的由多个固态和/或半导体二极管激光器发射的辐射的横截面的装置

    公开(公告)号:US6124973A

    公开(公告)日:2000-09-26

    申请号:US125534

    申请日:1999-01-11

    IPC分类号: G02B27/09 H01S5/40 G02B27/10

    摘要: The invention concerns an arrangement for shaping the geometrical cross-sion of a radiation field of a plurality of solid and/or semiconductor laser, in particular a plurality of diode laser arrays or field arrangements whose beam-outlet openings extend in a direction lying in the x-y plane and whose ray beam is radiated in the z direction, the x, y and z directions establishing a rectangular co-ordinate system, with an optical structure for generating a defined cross-section for a radiation field. The optical structure comprises reflective elements onto which the radiation of the respective lasers or laser field arrangements is guided and at which the radiation is reflected. The arrangement according to the invention is characterized in that each laser or laser field arrangement both in the x direction and in the y direction; and in that the reflection surfaces of the reflective elements are disposed in planes which are mutually offset and/or tilted such that the radiation portions reflected by the reflection surfaces are mutually offset perpendicular to the radiation diffusion direction with respect to the offset of the radiation outlet surfaces.

    摘要翻译: PCT No.PCT / EP97 / 00823 Sec。 371日期1999年1月11日 102(e)日期1999年1月11日PCT提交1997年2月20日PCT公布。 公开号WO97 / 31284 日期1997年8月28日本发明涉及一种用于整形多个固体和/或半导体激光器的辐射场的几何横截面的布置,特别是多个二极管激光器阵列或其射出口开口延伸的现场布置 位于xy平面中的方向,其射线束沿z方向辐射,x,y和z方向建立矩形坐标系,具有用于产生用于辐射场的限定横截面的光学结构。 光学结构包括反射元件,各激光器或激光器场布置的辐射被引导到反射元件上,并且辐射被反射。 根据本发明的装置的特征在于,在x方向和y方向上的每个激光或激光场布置; 并且反射元件的反射表面设置在相互偏移和/或倾斜的平面中,使得被反射表面反射的辐射部分相对于辐射扩散方向相对于辐射扩散方向相对偏移 表面。

    Resonator system with at least two folding elements
    10.
    发明授权
    Resonator system with at least two folding elements 失效
    具有至少两个折叠元件的谐振器系统

    公开(公告)号:US06768763B1

    公开(公告)日:2004-07-27

    申请号:US09913115

    申请日:2001-09-06

    IPC分类号: H01S308

    摘要: The invention relates to a resonator system with at least two folding elements for folding the beam path. Said folding elements serve to restrict the divergence angle of the radiation. The inventive resonator system is further characterized in that the respective folding is caused by reflection on a reflecting surface of the respective folding element. The beam axis of the radiation and the surface normal of the respective reflecting area are positioned at an angle relative to each other that is greater than the critical angle for the total reflection but smaller than the sum of the critical angle for the total reflection plus the divergence angle of the radiation.

    摘要翻译: 本发明涉及一种具有至少两个用于折叠光束路径的折叠元件的谐振器系统。 所述折叠元件用于限制辐射的发散角。 本发明的谐振器系统的特征还在于,各个折叠是由各个折叠元件的反射表面上的反射引起的。 辐射的光束轴线和相应反射区域的表面法线相对于彼此定位成大于全反射的临界角,但是小于全反射的临界角的总和加上 辐射角发散角。