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    • 41. 发明授权
    • Focus detection unit and optical measuring instrument having the same
    • 聚焦检测单元和光学测量仪具有相同的功能
    • US06407800B1
    • 2002-06-18
    • US09512772
    • 2000-02-25
    • Seiji ShimokawaKenji OkabeTaizo Nakamura
    • Seiji ShimokawaKenji OkabeTaizo Nakamura
    • G03B2752
    • G02B21/241
    • A focus detection unit being applicable to various workpiece and capable of reducing production cost and an optical measuring instrument having the focus detection unit are provided. The focus detection unit is for forming image of first focusing pattern and second focusing pattern onto an image surface of an optical system, projecting the image onto the workpiece, and adjusting relative position of the first focusing pattern and the second focusing pattern for focusing, the focus detection unit including: a slide plate having a plurality of pair of the first focusing pattern and the second focusing pattern; a switching member for switching the slide plate to project the image of either one of the first focusing patterns and the second pattern corresponding thereto onto the workpiece; and a projector for projecting the image of the focusing patterns switched by the switching member onto the workpiece.
    • 提供了一种适用于各种工件并能够降低生产成本的焦点检测单元和具有焦点检测单元的光学测量仪器。 焦点检测单元用于将第一聚焦图案和第二聚焦图案的图像形成在光学系统的图像表面上,将图像投影到工件上,并且调节第一聚焦图案和第二聚焦图案的聚焦的相对位置, 焦点检测单元包括:具有多对第一聚焦图案和第二聚焦图案的滑板; 切换构件,用于切换滑板以将第一聚焦图案中的任一个的图像和与其对应的第二图案的图像投影到工件上; 以及用于将由切换构件切换的聚焦图案的图像投影到工件上的投影仪。
    • 42. 发明授权
    • Projection measuring instrument
    • 投影测量仪
    • US6147758A
    • 2000-11-14
    • US490780
    • 2000-01-24
    • Kenji OkabeHiroshi WatabeTaizo Nakamura
    • Kenji OkabeHiroshi WatabeTaizo Nakamura
    • G01B9/08G01B11/24G01B11/30
    • G01B11/2433G01B9/08
    • A projection measuring instrument requiring no exchange work of overlay chart for comparatively observing a workpiece image and a template is provided. For the object, a table (56) for a workpiece (55) to be put on, an observation optical system having a screen (1) and a projection lens (53) for projecting an image of the workpiece (55) onto the screen (1), a relative movement unit (57) for relatively moving the table (56) and the observation optical system, and a displacement sensor (61) for detecting relative movement displacement by the relative movement unit (57) are provided, the screen (1) being a liquid crystal display, the liquid crystal display having a display controller (2) for displaying a line drawing for measuring a profile of the workpiece (55) onto the liquid crystal display at a predetermined magnification.
    • 提供了一种不需要交换工作的投影测量仪器,用于比较观察工件图像和模板的重叠图。 对于该目的,要放置的工件(55)的工作台(56),具有屏幕(1)的观察光学系统和用于将工件(55)的图像投影到屏幕上的投影透镜(53) (1),用于相对移动台(56)和观察光学系统的相对运动单元(57)和用于检测相对运动单元(57)的相对运动位移的位移传感器(61),屏幕 (1)是液晶显示器,液晶显示器具有显示控制器(2),用于以预定的倍率显示用于将工件(55)的轮廓测量到轮廓上的线条图。
    • 44. 发明授权
    • Feed-back control plate for joystick
    • 用于操纵杆的反馈控制板
    • US5804781A
    • 1998-09-08
    • US745898
    • 1996-11-07
    • Kenji Okabe
    • Kenji Okabe
    • G05G9/047H01H25/04
    • G05G9/047G05G2009/04766
    • An eight-way joystick control system is disclosed. The joystick comprises a control shaft having a handle end adapted for grasping and deflection of the control shaft by a user, and pivot defining a fixed point about which the control shaft is deflected at the handle end by the user. The control shaft has a central neutral position and eight control sector positions spaced radially around the neutral position. An indicator is included that produces a distinctive electrical signal when the control shaft is in each of the control sector positions. A control structure defines a deflection limit of the control shaft in an octagon shaped deflection pattern with eight corners. Each corner corresponds to one of the eight control sector positions such that when the control shaft is deflected into any one of the eight corners the control shaft is positioned in the corresponding control sector position. The control structure provides for a smooth unimpeded deflection limit between the corners, and provides a stop for tactile feedback to the user indicating that the control shaft is in the control sector position corresponding to a corner.
    • 公开了一种八路操纵杆控制系统。 操纵杆包括控制轴,该控制轴具有用于使用者抓握和偏转控制轴的手柄端,枢轴限定一个固定点,使用者在该固定点处控制轴在手柄端被偏转。 控制轴具有中心中立位置和八个控制扇区位置,围绕中立位置径向间隔开。 包括一个指示器,当控制轴处于每个控制扇区位置时,产生独特的电信号。 控制结构限定了具有八个角的八边形偏转图案中的控制轴的偏转极限。 每个角对应于八个控制扇区位置中的一个,使得当控制轴偏转到八个角中的任一个时,控制轴位于相应的控制扇区位置。 控制结构提供角部之间平滑无阻碍的偏转极限,并且为用户提供用于触觉反馈的停止,指示控制轴处于对应于拐角的控制扇区位置。