System and method for multi-pulse laser processing
    41.
    发明授权
    System and method for multi-pulse laser processing 失效
    多脉冲激光加工的系统和方法

    公开(公告)号:US08367968B2

    公开(公告)日:2013-02-05

    申请号:US11969000

    申请日:2008-01-03

    Abstract: Laser pulses are selected from a group of closely spaced laser pulses with an optical modulator by adjusting pulse timing relative to an impingement interval. An adjusted pulse is moved from an impingement interval to a non-impingement interval and is blocked. The blocked laser source is stabilized by running nearly continuously. Pulse selection with multiple laser sources is achieved with a single acousto-optic modulator.

    Abstract translation: 通过相对于冲击间隔调整脉冲定时,通过光学调制器从一组紧密间隔的激光脉冲中选择激光脉冲。 调整脉冲从冲击间隔移动到非冲击间隔并被阻挡。 封闭的激光源通过几乎连续运行而稳定。 使用单个声光调制器实现具有多个激光源的脉冲选择。

    Laser array
    42.
    发明授权
    Laser array 有权
    激光阵列

    公开(公告)号:US08259770B2

    公开(公告)日:2012-09-04

    申请号:US12577201

    申请日:2009-10-11

    CPC classification number: B41J2/45 H01S5/042 H01S5/4025

    Abstract: Electrophotographic print system, comprising a photosensitive medium, and a laser array being provided with a plurality of laser diodes arranged to emit light onto the photosensitive medium for varying an electrical potential on a surface of the photosensitive medium, and a plurality of heat dissipation diodes, each heat dissipation diode being arranged in proximity to a corresponding laser diode, wherein each laser diode and the corresponding heat dissipation diode are coupled to a common drive circuit and are arranged in opposite current flow directions with respect to each other, so that in use the current flows either through the laser diode or through the heat dissipation diode depending on the current flow direction in the drive circuit.

    Abstract translation: 电子照相打印系统,包括感光介质和激光阵列,其设置有多个激光二极管,所述多个激光二极管被布置成将光发射到感光介质上以改变感光介质的表面上的电位,以及多个散热二极管, 每个散热二极管布置在相应的激光二极管附近,其中每个激光二极管和相应的散热二极管耦合到公共驱动电路并且相对于彼此以相反的电流流动方向布置,使得在使用中 电流根据驱动电路中的电流流动方向通过激光二极管或通过散热二极管流动。

    Reducing side lobes within optical irradiance distributions used to selectively expose photosensitive surface
    43.
    发明授权
    Reducing side lobes within optical irradiance distributions used to selectively expose photosensitive surface 有权
    用于选择性曝光光敏表面的光学辐射分布中的旁瓣减少

    公开(公告)号:US08085289B1

    公开(公告)日:2011-12-27

    申请号:US12258092

    申请日:2008-10-24

    CPC classification number: B41J2/471 B41J2/473 G02B26/124 G02B27/58

    Abstract: An optical beam is selectively output towards a scanner in accordance with image data for a scan line of an image. The optical beam has a beam irradiance distribution that is elliptical in shape. The optical beam passes through an aperture stop, ordinarily creating side lobes within a focus irradiance distribution of the optical beam. The scanner scans the optical beam to form the scan line on a photosensitive surface by selectively exposing positions along the scan line in accordance with image data. The optical beam is modified before it reaches the photosensitive surface to substantially remove the side lobes that have been created within the focus irradiance distribution and/or to substantially prevent the side lobes from being created within the focus irradiance distribution of the optical beam.

    Abstract translation: 根据图像的扫描线的图像数据,选择性地向扫描仪输出光束。 光束具有椭圆形的光束辐照度分布。 光束通过孔径光阑,通常在光束的聚焦辐照度分布内产生旁瓣。 通过根据图像数据选择性地暴露沿着扫描线的位置,扫描仪扫描光束以在感光表面上形成扫描线。 光束在其到达感光表面之前被修改以基本上去除已经在聚焦辐照度分布内产生的旁瓣,和/或基本上防止在光束的聚焦辐照度分布内产生旁瓣。

    Skewing compensation method and apparatus in a laser based image-forming system
    46.
    发明申请
    Skewing compensation method and apparatus in a laser based image-forming system 有权
    基于激光的图像形成系统中的扭曲补偿方法和装置

    公开(公告)号:US20070019059A1

    公开(公告)日:2007-01-25

    申请号:US11187069

    申请日:2005-07-22

    CPC classification number: B41J2/473 G03G15/04072 G03G15/55 G03G2215/0404

    Abstract: Skew compensation apparatus for compensating for skew of a multi-beam scanning source, comprises: delay commencement detector(s) for detecting the start of a beam scanner position, position detectors for detecting the position of the multiple beams at a predefined interval following the commencement, so that the position indicates skew of the respective beam, and compensating electronics for automatically inserting a compensation for the skew by altering a delay into a timing signal for switching the respective beam. The commencement detector can be an existing start of scan detector and the apparatus can be built into the writing head, particularly at the conjugate location to the focal plane or at the focal plane of a laser printer or the like to provide a self-calibrating printer.

    Abstract translation: 用于补偿多光束扫描源的偏斜的偏斜补偿装置包括:用于检测光束扫描器位置的起始的延迟启动检测器,用于在开始之后的预定间隔检测多个光束的位置的位置检测器 ,使得该位置指示相应波束的偏斜,以及补偿电子装置,用于通过将延迟改变为用于切换相应波束的定时信号来自动插入对于偏斜的补偿。 启动检测器可以是扫描检测器的现有开始,并且该装置可以内置在写入头中,特别是在激光打印机等的焦平面或焦平面的共轭位置处,以提供自校准打印机 。

    Method and system for precisely positioning a waist of a material-processing laser beam to process microstructures within a laser-processing site

    公开(公告)号:US20050184036A1

    公开(公告)日:2005-08-25

    申请号:US11114520

    申请日:2005-04-26

    Abstract: A high-speed method and system for precisely positioning a waist of a material-processing laser beam to dynamically compensate for local variations in height of microstructures located on a plurality of objects spaced apart within a laser-processing site are provided. In the preferred embodiment, the microstructures are a plurality of conductive lines formed on a plurality of memory dice of a semiconductor wafer. The system includes a focusing lens subsystem for focusing a laser beam along an optical axis substantially orthogonal to a plane, an x-y stage for moving the wafer in the plane, and a first air bearing sled for moving the focusing lens subsystem along the optical axis. The system also includes a first controller for controlling the x-y stage based on reference data which represents 3-D locations of microstructures to be processed within the site, a second controller, and a first voice coil coupled to the second controller for positioning the first air bearing sled along the optical axis also based on the reference data. The reference data is generated by the system which includes a modulator for reducing power of the material-processing laser beam to obtain a probe laser beam to measure height of the semiconductor wafer at a plurality of locations about the site to obtain reference height data. A computer computes a reference surface based on the reference height data. A trajectory planner generates trajectories for the wafer and the waist of the laser beam based on the reference surface. The x-y stage and the first air bearing sled controllably move the wafer and the focusing lens subsystem, respectively, to precisely position the waist of the laser beam so that the waist substantially coincides with the 3-D locations of the microstructures within the site. The system also includes a spot size lens subsystem for controlling size of the waist of the laser beam, a second air bearing sled for moving the spot size lens subsystem along the optical axis, a third controller for controlling the second air bearing sled, and a second voice coil coupled to the third controller for positioning the second air bearing sled along the optical axis.

    Concentration detector for colored toner
    49.
    发明授权
    Concentration detector for colored toner 失效
    彩色调色剂浓度检测仪

    公开(公告)号:US5570193A

    公开(公告)日:1996-10-29

    申请号:US360681

    申请日:1995-02-27

    CPC classification number: G03G15/105 G01N21/534 G03G15/0121

    Abstract: Apparatus for detecting concentrations of colored toner particles in the presence of black or other absorbing toner particles including a light source, a light detector having a field of view of less than about .+-.10 degrees and preferably less than .+-.5 degrees, apparatus for supplying a dispersion of colored toner particles optionally containing undesirable contamination by black toner particles between the light source and the detector and computing circuitry operative for determining the concentration of the colored toner particles utilizing output from the light detector.

    Abstract translation: PCT No.PCT / NL92 / 00117 Sec。 371日期:1995年2月27日 102(e)日期1995年2月27日PCT提交1992年7月2日PCT公布。 公开号WO94 / 01809 日期1994年1月20日用于检测在存在黑色或其它吸收调色剂颗粒的情况下着色调色剂颗粒的浓度的装置,包括光源,具有小于约+/- 10度,优选小于+ 用于供应彩色调色剂颗粒的分散体的装置,任选地包含在光源和检测器之间的黑色调色剂颗粒的不期望的污染物,以及计算电路,用于利用来自光检测器的输出来确定着色调色剂颗粒的浓度。

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