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68 条记录 (耗时 0.041 秒)

    Time correlation of ultrafast laser pulses
    31.
    发明授权
    Time correlation of ultrafast laser pulses 有权
    超快激光脉冲的时间相关性

    公开(公告)号：US07038781B2

    公开(公告)日：2006-05-02

    申请号：US10676679

    申请日：2003-10-01

    申请人： H. Yang Pang ,  R. Russel Austin

    发明人： H. Yang Pang ,  R. Russel Austin

    IPC分类号： G01B9/02

    CPC分类号： G01J11/00 ,  H01S3/10053 ,  H01S3/105 ,  H01S3/106 ,  H01S3/1394 ,  H01S3/2383

    摘要： Time-correlation methods for determining pulse characteristics from a modelocked ultrafast laser include a cross-correlation method and an auto-correlation method. In the cross-correlation method, pulses from the laser and pulses from another modelocked laser are incident on a two-photon detector that responds when the pulses overlap in time. The lasers are synchronized to the same frequency and the phase difference between pulses from the two lasers is varied to vary the temporal pulse overlap while recording the detector response. Pulse characteristics are determined from recorded data representing the detector response as a function of phase difference. In the auto-correlation method, pulses from one laser are divided into two components. One component follows a fixed delay path before being temporally overlapped at the detector with another component that has not been delayed. The temporal overlap is varied by varying the pulse repetition frequency. Pulse characteristics are determined from recorded data representing the detector response as a function of phase difference.

    摘要翻译： 用于从锁模超快激光器确定脉冲特性的时间相关方法包括互相关方法和自相关方法。 在互相关方法中，来自激光器的脉冲和来自另一个锁模激光器的脉冲入射在双光子检测器上，当脉冲在时间上重叠时响应。 激光器被同步到相同的频率，并且来自两个激光器的脉冲之间的相位差被改变以在记录检测器响应的同时改变时间脉冲重叠。 根据表示作为相位差的函数的检测器响应的记录数据确定脉冲特性。 在自相关方法中，来自一个激光器的脉冲被分成两部分。 一个组件遵循固定的延迟路径，然后在未被延迟的另一个组件在检测器处暂时重叠。 通过改变脉冲重复频率来改变时间重叠。 根据表示作为相位差的函数的检测器响应的记录数据确定脉冲特性。

    Apparatus for reducing spacing of beams delivered by stacked diode-laser bars
    32.
    发明授权
    Apparatus for reducing spacing of beams delivered by stacked diode-laser bars 失效
    用于减少由堆叠的二极管激光棒传递的光束的间隔的装置

    公开(公告)号：US06993059B2

    公开(公告)日：2006-01-31

    申请号：US10458833

    申请日：2003-06-11

    申请人： Serguei G. Anikitchev ,  R. Russel Austin

    发明人： Serguei G. Anikitchev ,  R. Russel Austin

    IPC分类号： H01S3/08

    CPC分类号： G02B19/0057 ,  G02B19/0028 ,  G02B27/0977 ,  G02B27/283 ,  H01S3/005 ,  H01S5/4012 ,  H01S5/405

    摘要： Apparatus for reducing spacing between a plurality of parallel, spaced apart plane-polarized laser-radiation beams delivered by a stack of laser-diode bars includes a ninety degree polarization rotator, and a compound prism including a total reflecting surface an internal polarization-selective surface parallel to each other. The polarization-selective surface is highly transmissive for radiation plane-polarized in one polarization orientation and highly reflective for radiation plane-polarized at ninety degrees to that orientation. The polarization rotator rotates the polarization of a portion of the beams. The beams are transmitted through the compound prism with the portion of polarization-rotated beams following a different path through the prism from that of the beams that are not polarization rotated. The beams exit the prism with spacing therebetween one-half of the spacing between beams entering the prism.

    摘要翻译： 用于减少由一堆激光二极管条输送的多个平行，间隔开的平面偏振的激光辐射束之间的间隔的装置包括九十度偏振旋转器，以及包括全反射表面的复合棱镜，内部偏振选择表面 彼此平行。 偏振选择性表面对于在一个偏振取向中的辐射平面偏振是高度透射的，并且对于朝向该取向的九十度的辐射平面极化是高反射性的。 偏振旋转器旋转一部分光束的偏振。 光束通过复合棱镜透射，偏振旋转光束的部分跟随着不是偏振旋转的光束穿过棱镜的不同路径。 光束离开棱镜之间的间隔，进入棱镜的光束之间的间隔的一半。

    Fluence monitoring method for laser treatment of biological tissue
    33.
    发明授权
    Fluence monitoring method for laser treatment of biological tissue 失效
    用于激光治疗生物组织的荧光监测方法

    公开(公告)号：US5928221A

    公开(公告)日：1999-07-27

    申请号：US971318

    申请日：1997-11-17

    申请人： Michael W. Sasnett ,  R. Russel Austin

    发明人： Michael W. Sasnett ,  R. Russel Austin

    IPC分类号： A61F9/008 ,  A61F9/01 ,  A61B17/36

    CPC分类号： A61F9/008 ,  A61F9/00802 ,  A61F2009/00846 ,  A61F2009/00855 ,  A61F2009/00872 ,  A61F2009/00897

    摘要： Fluence monitoring apparatus is disclosed for a system for modifying curvature of a cornea by selective laser photoablation of corneal tissue by means of a succession of pulses of laser radiation delivered to the cornea in an overlapping pattern corresponding to a desired pattern of photoablation. The system includes a scanning arrangement for directing the pulses to form the overlapping pattern. The fluence monitoring apparatus includes a beamsplitter located between the scanning arrangement and the cornea for directing a fraction of each of the pulses to a monitor plate. The monitor plate emits fluorescent light on being irradiated by each pulse-fraction. A video camera provides an electronic image of the monitor plate. Processing circuitry periodically records the electronic image, and the periodic image recordings are integrated to form a composite image representative of spatial distribution of laser fluence on the cornea.

    摘要翻译： 荧光监测装置被公开用于通过用对应于期望的光消除图案的重叠图案递送到角膜的一系列激光辐射脉冲的选择性激光光切割角膜组织来修改角膜的弯曲的系统。 该系统包括用于引导脉冲以形成重叠图案的扫描装置。 注量监测装置包括位于扫描装置和角膜之间的分束器，用于将每个脉冲的一部分引导到监视器板。 监控板在每个脉冲分数照射下发射荧光。 视频摄像机提供监视器板的电子图像。 处理电路周期性地记录电子图像，并且周期性图像记录被整合以形成代表角膜上的激光注量的空间分布的合成图像。

    Faceplate for a touch-sensitive video display unit
    34.
    发明授权
    Faceplate for a touch-sensitive video display unit 失效
    触摸屏视频显示单元的面板

    公开(公告)号：US5556694A

    公开(公告)日：1996-09-17

    申请号：US350968

    申请日：1994-12-07

    申请人： R. Russel Austin

    发明人： R. Russel Austin

    IPC分类号： G06F3/033 ,  G06F3/047 ,  G06F3/048 ,  B32B7/00

    CPC分类号： G06F3/044 ,  G06F3/045 ,  Y10T428/24851 ,  Y10T428/24917 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24975 ,  Y10T428/261

    摘要： A faceplate for a touch-sensitive display includes, on an outermost surface, a pattern of electrode-regions separated by spaces. A base-coating is deposited on the surface and extends continuously over the surface. The electrode-regions are formed from a layer of a conductive transparent metal-oxide deposited on the base-coating. The electrode-regions and spaces are overcoated by a protective-layer of an insulating material. For light incident on the faceplate at about normal incidence photopic reflectivity in the protective-layer-overcoated electrode-regions is within plus or minus ten percent of photopic reflectivity in the protective-layer-overcoated spaces.

    摘要翻译： 用于触敏显示器的面板在最外表面上包括由空间分开的电极区域的图案。 基底涂层沉积在表面上并且在表面上连续延伸。 电极区域由沉积在基底涂层上的导电透明金属氧化物层形成。 电极区域和空间被绝缘材料的保护层覆盖。 对于围绕正常入射的面板的光，保护层覆盖电极区域中的光反射率在保护层外涂层空间中的光反射率的±10％以内。

    Laser beam transformer and projector having stacked plates
    37.
    发明授权
    Laser beam transformer and projector having stacked plates 失效
    激光束变压器和具有堆叠板的投影机

    公开(公告)号：US07891821B2

    公开(公告)日：2011-02-22

    申请号：US11958127

    申请日：2007-12-17

    申请人： H. Yang Pang ,  Murray K. Reed ,  Alexander O. W. Wiessner ,  R. Russel Austin

    发明人： H. Yang Pang ,  Murray K. Reed ,  Alexander O. W. Wiessner ,  R. Russel Austin

    IPC分类号： G03B21/14 ,  G02B27/10

    CPC分类号： H01S3/005 ,  G02B27/0905 ,  G02B27/0961 ,  H01S5/4012

    摘要： An original laser-radiation beam having a symmetrical M2 but poor beam quality is sliced in one transverse axis, by a fanned-out stack of parallel transparent plates, into a plurality of beam slices. The beam-slices are also spread by the stack of plates in another transverse axis perpendicular to the first axis. A fanned-out stack of glass blocks aligns the spread beam-slices in the first axis to form what is effectively a single beam having an asymmetric M2, with beam quality improved in one axis and degraded in the other compared with the original beam. The effective single beam is projected into a line of radiation by a cylindrical lens, or by a homogenizing projector including spaced apart cylindrical lens arrays followed by a spherical condenser lens.

    摘要翻译： 具有对称M2但差的光束质量的原始激光辐射束在一个横向轴线上通过平行的平行透明板的扇形叠层切割成多个光束切片。 光束切片也在垂直于第一轴线的另一个横向轴上的板堆叠扩展。 玻璃块的扇形排列将扩展的光束片在第一轴上对准以形成具有不对称M2的单个光束，其中一个轴上的光束质量得到改善并且与原始光束相比在另一个轴上劣化。 有效的单光束通过柱面透镜投射到辐射线中，或者通过均匀化的投影仪投影，其包括间隔开的柱面透镜阵列，随后是球面聚光透镜。

    Quasi-CW UV laser with low peak pulse-power
    38.
    发明授权
    Quasi-CW UV laser with low peak pulse-power 有权
    具有低峰值脉冲功率的准CW UV激光器

    公开(公告)号：US07738515B2

    公开(公告)日：2010-06-15

    申请号：US12138042

    申请日：2008-06-12

    申请人： Luis A. Spinelli ,  Sergei V. Govorkov ,  R. Russel Austin

    发明人： Luis A. Spinelli ,  Sergei V. Govorkov ,  R. Russel Austin

    IPC分类号： H01S3/10

    CPC分类号： H01S3/1106 ,  G02F1/37 ,  H01S3/0057 ,  H01S3/0092 ,  Y10S372/70

    摘要： Laser apparatus is disclosed in which fundamental-wavelength optical pulses delivered from a mode-locked laser resonator at a pulse-repetition frequency (PRF) are converted to harmonic-wavelength pulses in an optical delay loop. One example is disclosed in which the harmonic-wavelength pulses are delivered directly from the delay loop. Another example is disclosed in which the harmonic-wavelength pulses are divided by the delay loop into a number of temporally spaced-apart replicas thereof, and the delay loop delivers bursts of replicas of different one of the harmonic wavelength pulses at a burst-repetition frequency equal to or a multiple of the PRF of the resonator.

    摘要翻译： 公开了一种激光装置，其中以脉冲重复频率（PRF）从锁模激光谐振器传送的基波波长光脉冲被转换成光延迟环路中的谐波波长脉冲。 公开了一个示例，其中谐波波长脉冲直接从延迟环路传送。 公开了另一个例子，其中谐波波长脉冲被延迟环分成多个时间间隔分开的副本，并且延迟环以突发重复频率递送不同一个谐波波长脉冲的复制脉冲串 等于谐振器的PRF或倍数。

    Attenuator for high-power unpolarized laser beams
    39.
    发明授权
    Attenuator for high-power unpolarized laser beams 失效
    用于大功率非偏振激光束的衰减器

    公开(公告)号：US07706069B2

    公开(公告)日：2010-04-27

    申请号：US11803271

    申请日：2007-05-14

    申请人： Oliver Mehl ,  R. Russel Austin

    发明人： Oliver Mehl ,  R. Russel Austin

    IPC分类号： G02B27/28

    CPC分类号： G02B27/281 ,  H01S3/005

    摘要： Apparatus for attenuating an unpolarized laser beam includes a polarizing beamsplitter for separating the laser beam into two plane-polarized beams following separate paths. The two plane-polarized beams are polarization rotated by a single polarization rotator. Each of the polarization-rotated beams is separated by a polarizing beam-combiner into two plane-polarized portions. One of the portions of one polarization-rotated beam is combined by the beam-combiner with one of the portions of the other polarization-rotated beam to provide an attenuated output-beam. In certain examples of the apparatus the separate paths are made equal in length so that combined beam portions are equal in diameter.

    摘要翻译： 用于衰减非偏振激光束的装置包括偏振分束器，用于将激光束分离成分开的路径之后的两个平面偏振光束。 两个平面偏振光束由单个偏振旋转器偏振旋转。 每个偏振旋转光束由偏振光束组合器分离成两个平面偏振部分。 一个偏振旋转光束的一个部分由光束组合器与另一个偏振旋转光束的部分之一组合以提供衰减的输出光束。 在设备的某些实例中，分离的路径的长度相等，使得组合的梁部分的直径相等。