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    • 5. 发明授权
    • Camera calibration system and three-dimensional measuring system
    • 相机校准系统和三维测量系统
    • US07750969B2
    • 2010-07-06
    • US11658105
    • 2005-07-21
    • Yukio SatoSusumu Shibata
    • Yukio SatoSusumu Shibata
    • H04N5/225H04N17/00G06K9/00
    • G01B11/2504G06T7/80H04N13/207H04N13/254H04N17/002
    • Camera calibration which is robust against noise factors such as variation in environmental lighting and obstructions is realized. Light-emitting markers, whose on/off states can be controlled, are arrayed in a matrix on a reference panel on which an object is placed. The light-emitting markers blink in accordance with respective switching patterns in synchronism with the frame of continuous imaging of a camera. A three-dimensional measuring instrument determines the time-varying bright-and-dark pattern of a blinking point from the image of each frame and identifies, on the basis of the pattern, to which light-emitting marker each point corresponds. By reference to the identification results, camera calibration is performed, and a coordinate transformation parameter is computed.
    • 实现了对环境照明和障碍物变化等噪声因素的鲁棒性的相机校准。 可以控制其开/关状态的发光标记物被放置在放置对象的参考面板上的矩阵中。 发光标记根据相机的连续成像的帧同步地切换。 三维测量仪器从每个帧的图像确定闪烁点的时变亮和暗图案,并且基于图案识别每个点对应于哪个发光标记。 通过参照识别结果,进行相机校准,并计算坐标变换参数。
    • 6. 发明申请
    • LIGHT SOURCE UNIT AND IMAGE DISPLAYING APPARATUS USING THE SAME
    • 光源单元和使用其的图像显示装置
    • US20100118283A1
    • 2010-05-13
    • US12560995
    • 2009-09-16
    • Jyunichi AIZAWAYukio SatoMitoru YabeHiroshi Sasaki
    • Jyunichi AIZAWAYukio SatoMitoru YabeHiroshi Sasaki
    • G03B21/20G02B27/20
    • G02B7/021G02B6/4206G02B6/4292G03B21/2033G03B21/208
    • An object is to provide a light source unit that focuses a laser beam, having different divergence angles in longitudinal direction and lateral direction, so as not to allow longitudinally and laterally deviating from an incident end-face of an optical fiber. The light source unit herein provided is configured to form the laser beam 9 emitted from a laser element 7, having different divergence angles in longitudinal direction and lateral direction, into a parallel-ray laser beam by collimating laser beam rays in a plane in which the beam has a larger divergence angle using cylindrical lenses 10 and 11 in a first lens barrel 1 and also by collimating laser beam rays in a plane in which the beam has a smaller divergence angle using a cylindrical lens 12 therein, and to focus the parallel-ray laser beam onto the entrance of the optical fiber 3 using circular lenses 13 and 14 in a second lens barrel 2, whereby the first lens barrel 1 and the second lens barrel 2 are regularly positioned and directly coupled so that their optical axes coincide with each other.
    • 本发明的目的是提供一种在长度方向和横向上具有不同发散角的激光束聚焦的光源单元,以便不允许纵向和横向偏离光纤的入射端面。 这里提供的光源单元被配置为通过在激光元件7的纵向方向和横向上具有不同发散角的激光束9中形成激光束9而形成平行射线激光束,该激光束通过在 光束在第一透镜镜筒1中使用柱面透镜10和11具有较大的发散角,并且还通过使用其中的柱面透镜12将光束具有较小发散角的平面中的激光束射线准直, 射线激光束在第二透镜镜筒2中使用圆形透镜13和14在光纤3的入口上,由此第一透镜镜筒1和第二透镜镜筒2被规则地定位并直接耦合,使得它们的光轴与每个 其他。
    • 8. 发明授权
    • Current voltage converter circuit
    • 电流电压转换电路
    • US07227119B2
    • 2007-06-05
    • US11118347
    • 2005-05-02
    • Yukio SatoMoriyasu Ichino
    • Yukio SatoMoriyasu Ichino
    • H03F3/08
    • H03F3/08G11B7/126H03F3/343H03G1/0088H03G3/3084
    • A current voltage converter circuit includes a light receiving element which receives a light output from a laser and generates a light current according to the light output, a current distributor circuit which distributes the light current from the light receiving element, the current distributor circuit being configured of a current mirror circuit which includes a transistor pair and a first operating amplifier. The current voltage converter circuit further includes a voltage converter circuit which converts a current distributed by the current distributor circuit into a voltage, the voltage converter circuit including a second operating amplifier.
    • 电流电压转换器电路包括接收来自激光器的光输出并根据光输出产生光电流的光接收元件,分配来自光接收元件的光电流的分流器电路,配置电流分配器电路 包括晶体管对和第一运算放大器的电流镜电路。 当前的电压转换器电路还包括电压转换器电路,其将由分配器电路分配的电流转换成电压,该电压转换器电路包括第二运算放大器。