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    • 54. 发明申请
    • FILTERING ACOUSTIC WAVEFORMS IN DOWNHOLE ENVIRONMENTS
    • 在井下环境中滤波声波
    • US20120147702A1
    • 2012-06-14
    • US13310780
    • 2011-12-04
    • Henri-Pierre ValeroShinichi SunagaTakeshi Endo
    • Henri-Pierre ValeroShinichi SunagaTakeshi Endo
    • G01V1/40
    • G01V1/48G01V1/44G01V2210/23
    • Methods and apparatus to filter acoustic waveforms in downhole environments are described. An example method involves receiving acoustic waveform data representing acoustic signals traversing at least a portion of a borehole adjacent a subterranean formation and performing a direct transform operation on the acoustic waveform data to generate wavelet map data. The wavelet map data comprises a time-frequency representation of the acoustic waveform data. The example method also involves identifying a waveform of interest via the wavelet map data, extracting data associated with the waveform of interest from the wavelet map data, generating filtered wavelet map data based on the extracted data, and performing an inverse transform operation on the filtered wavelet map data to generate filtered acoustic waveform data
    • 描述了在井下环境中滤波声波的方法和装置。 示例性方法包括接收表示穿过邻近地层的钻孔的至少一部分的声信号的声波形数据,并且对声波形数据执行直接变换操作以产生小波图数据。 小波图数据包括声波形数据的时间 - 频率表示。 该示例方法还涉及通过小波变换图数据识别感兴趣的波形,从小波变换数据中提取与感兴趣波形相关联的数据,基于所提取的数据产生滤波后的小波变换数据,并对经滤波的 小波图数据生成滤波后的声波形数据
    • 56. 发明授权
    • Laser exposure device and optical axis adjustment method in laser exposure device
    • 激光曝光装置中的激光曝光装置和光轴调整方法
    • US08054326B2
    • 2011-11-08
    • US12477961
    • 2009-06-04
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • Takeshi EndoTakahiro KojimaKazutoshi Takahashi
    • B41J2/44
    • G03G15/04072G03G15/0435
    • In a laser exposure device according to the present invention, a positioning pin, which is formed in a lens holder supporting a lens system, is inserted through an elongated hole for restriction of a board holder supporting a laser diode. An eccentric cam is inserted into an elongated hole for rotation movement formed in a board holder and a circular hole for rotation movement which is formed in the lens holder and which faces the elongated hole for rotation movement. An eccentric cam is inserted into an elongated hole for slide movement formed in the board holder and a circular hole for slide movement which is formed in the lens holder and which faces the elongated hole for slide movement. The eccentric cams are rotated to relatively move the board holder and lens holder with respect to each other to thereby establish alignment between the optical axes of the laser diode and lens system. In a state where the eccentric cams are fitted into the elongated holes, the board holder and lens holder are fixed to each other by screws.
    • 在根据本发明的激光曝光装置中,形成在支撑透镜系统的透镜支架中的定位销被插入通过长孔以限制支撑激光二极管的板支架。 偏心凸轮被插入到用于旋转运动的长孔中,形成在板保持器中的旋转运动和用于旋转运动的圆形孔,其形成在透镜保持器中并面向用于旋转运动的细长孔。 偏心凸轮被插入到用于滑动运动的细长孔中,形成在板保持器中,并且用于滑动运动的圆形孔形成在透镜保持器中并面对用于滑动运动的长孔。 偏心凸轮旋转以相对于彼此相对地移动板保持器和透镜保持器,从而在激光二极管和透镜系统的光轴之间建立对准。 在将偏心凸轮装配到细长孔中的状态下,通过螺钉将板保持器和透镜保持器彼此固定。
    • 60. 发明申请
    • HOLOGRAM OPTICAL ELEMENT, FABRICATION METHOD THEREOF, AND IMAGE DISPLAY APPARATUS
    • HOLOGRAM光学元件,其制造方法和图像显示装置
    • US20080297866A1
    • 2008-12-04
    • US12126105
    • 2008-05-23
    • Takeshi EndoYoshie Shimizu
    • Takeshi EndoYoshie Shimizu
    • G02B27/01G02B5/32G03H1/02
    • G03H1/04G02B5/32G02B27/0103G02B27/1073G02B27/1086G02B2027/0109G02B2027/0123G03H2001/0439G03H2001/2231G03H2222/55
    • A volume-phase reflection hologram optical element is fabricated by exposing a hologram photosensitive material to two coherent light beams. One exposure light beam has an axis-asymmetric wavefront, and the other exposure light beam has focus points different in the optical axis direction (Z-direction) between on a plane (ZX-plane) including one of two directions (X- and Y-directions) mutually perpendicular on a sectional plane perpendicular to that light beam and on a plane (YZ-plane) including the other of those two directions. Thus, an image display apparatus is realized in which at the time of reproduction, the component of a predetermined wavelength of the image light diffraction-reflected by the hologram optical element is focused at positions different in the optical axis direction between on the ZX-plane and on the YZ-plane, offering different image viewing characteristics between in the X- and Y-directions.
    • 通过将全息图感光材料曝光于两个相干光束来制造体积相位反射全息光学元件。 一个曝光光束具有轴非对称波前,另一个曝光光束在包括两个方向之一的平面(ZX平面)上的光轴方向(Z方向)上具有不同的焦点(X和Y 二维)在垂直于该光束的截面上和在包括这两个方向中的另一个的平面(YZ-平面)上相互垂直。 因此,实现了一种图像显示装置,其中在再现时,由全息光学元件衍射反射的图像光的预定波长的分量被聚焦在Z轴平面上的光轴方向上不同的位置 并且在YZ平面上,在X和Y方向之间提供不同的图像观看特性。