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    • 4. 发明授权
    • Fine displacement transducer employing plural optical fibers
    • 采用多根光纤的精细位移传感器
    • US4739161A
    • 1988-04-19
    • US870814
    • 1986-06-05
    • Shigeo MoriyamaFumihiko Uchida
    • Shigeo MoriyamaFumihiko Uchida
    • G01B11/00G01B11/02G01C3/00G01C3/06G01C3/08H01J5/16
    • G01B11/026
    • A fine displacement transducer, wherein either end of a first and a second optical fibers which are mutually adjacent are respectively provided in alignment with each other opposed to the reflection surface and the illuminating light is made incident from the one end of the first optical fiber and the light irradiated from the other end of the first optical fiber is made to illuminate its reflection surface, while the reflected light therefrom is received by the second optical fiber, so that the amount of displacement of the reflection surface relative to both end surfaces of the second optical fiber can be detected from the variation of intensity of the received light, and a measuring system wherein the reflected light from the reflection surface is received by either of the second or a separately provided third optical fiber to detect the intensity of received light for converting it into the electric signal.
    • 精细位移传感器,其中彼此相邻的第一和第二光纤的任一端分别设置成与反射表面相对准,并且照明光从第一光纤的一端入射, 使从第一光纤的另一端照射的光照射其反射面,同时其反射光被第二光纤接收,使得反射面相对于第二光纤的两个端面的位移量 可以从接收光的强度的变化来检测第二光纤,以及测量系统,其中来自反射表面的反射光由第二光纤或单独提供的第三光纤中的任一个接收,以检测接收光的强度 将其转换为电信号。
    • 8. 发明授权
    • Photoelectric microscope
    • 光电显微镜
    • US4045141A
    • 1977-08-30
    • US695556
    • 1976-06-14
    • Shigeo MoriyamaYoshio Kawamura
    • Shigeo MoriyamaYoshio Kawamura
    • G01B9/04G01B11/02
    • G01B9/04G01B11/02
    • Description is made of improvements in a photoelectric microscope which is employed for the measurement of a very small distance. According to this invention, an optical system for making point-symmetric images is disposed in an optical path of an objective of a photoelectric microscope so as to form on an identical focal plane a pair of (two) images of a reference line (or mark) on a test piece which are in the relation of point symmetry to each other, and the distance between the pair of (two) images is measured, whereby the deviating distance of the reference line (or mark) on the test piece from the optic axis of the objective is evaluated. The distance between the pair of images is evaluated by gauging the time difference between two detection signals which are obtained by scanning the pair of images at equal speeds with photoelectric detectors.
    • 描述用于测量非常小距离的光电显微镜的改进。 根据本发明,用于制造点对称图像的光学系统设置在光电显微镜的物镜的光路中,以便在同一焦平面上形成参考线(或标记)的一对(两个)图像 ),并且测量一对(两个)图像之间的距离,由此测试片上的参考线(或标记)与光学元件的偏离距离 评估目标轴。 通过测量通过用光电检测器以等速扫描一对图像而获得的两个检测信号之间的时间差来评估该对图像之间的距离。
    • 10. 发明授权
    • Automatic focusing apparatus
    • 自动对焦装置
    • US4153341A
    • 1979-05-08
    • US783141
    • 1977-03-31
    • Yoshio KawamuraShigeo Moriyama
    • Yoshio KawamuraShigeo Moriyama
    • G03B13/36G02B7/28G02B21/00G03B27/34G11B7/09H01L21/027H01L21/30H04N5/232G02B7/11
    • G11B7/0914G02B7/28
    • This invention relates to an automatic focusing apparatus, in that a position of a substrate mounted on the base of the apparatus is detected as a pressure value by a first detecting means, such as an air micrometer, in that second detecting means, such as an air micrometer, are provided on a portion of the apparatus to determine a reference pressure, gas supplied into the second detecting means is derived from the same supply source as that of the first detecting means, and further, in that the base can be controlled and moved until the difference between the reference pressure and the detected pressure reaches a predetermined constant value, whereby the surface of the sample can be automatically positioned at a desired focusing position.
    • 本发明涉及一种自动聚焦装置,其特征在于,通过第一检测装置(例如气流千分尺)将安装在装置的基座上的基板的位置作为压力值检测为第二检测装置,例如 空气千分表设置在设备的一部分上以确定参考压力,供应到第二检测装置中的气体源自与第一检测装置相同的供应源,并且还可以控制基座, 移动直到参考压力和检测到的压力之间的差达到预定的恒定值,由此样品的表面可以自动地定位在期望的聚焦位置。