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235 条记录 (耗时 0.024 秒)

    Textile color analyzer calibration
    31.
    发明授权
    Textile color analyzer calibration 失效
    纺织颜色分析仪校准

    公开(公告)号：US4029419A

    公开(公告)日：1977-06-14

    申请号：US621334

    申请日：1975-10-10

    申请人： Paul A. Schumann, Jr. ,  Alvin H. Tong

    发明人： Paul A. Schumann, Jr. ,  Alvin H. Tong

    IPC分类号： G01J3/51 ,  G01J3/00 ,  G01J3/02 ,  G01J3/50 ,  G01N21/27 ,  G01N21/55 ,  G01N21/48

    CPC分类号： G01J3/02 ,  G01J3/0218 ,  G01J3/50 ,  G01J3/524 ,  G01N21/274 ,  G01N21/55 ,  G01J3/51 ,  G01N2021/4742

    摘要： A spectrophotometer is operative to measure or analyze the colors of materials such as textiles. A test sample is held by a holder and is illuminated by polychromatic light. Diffuse light reflected from the sample is collected and converted to variable monochromatic light and detected. The system is calibrated by using a secondary white standard calibrated against a primary white standard, by using a black standard to compensate for dark current and internal reflectance from a pressure plate, and by using a mirror to obtain internal wall reflectance used in a correction factor.

    摘要翻译： 分光光度计可用于测量或分析诸如纺织品的材料的颜色。 测试样品由保持器保持并被多色光照射。 从样品反射的漫射光被收集并转换成可变单色光并检测。 通过使用针对主白色标准校准的二级白色标准，通过使用黑色标准来补偿来自压力板的暗电流和内部反射率，并且通过使用反射镜获得用于校正因子的内部壁反射来校准系统 。

    Optical observation apparatus and optical observation method
    35.
    发明授权
    Optical observation apparatus and optical observation method 有权

    公开(公告)号：US09903812B2

    公开(公告)日：2018-02-27

    申请号：US14835229

    申请日：2015-08-25

    申请人： MITUTOYO CORPORATION

    发明人： Yutaka Miki

    IPC分类号： G01N21/47 ,  G01B11/24

    CPC分类号： G01N21/474 ,  G01B11/24 ,  G01N2021/4709 ,  G01N2021/4742

    摘要： Optical observation apparatus includes: light source emitting broadband light; image fiber with first and second end faces, wherein end faces of plural cores are two-dimensionally arrayed in first and second end faces; imaging optical system provided on first end face side of image fiber, causing light from first end face to be imaged on imaging plane; and axial aberration optical system provided on second end face side of image fiber, having an axial chromatic aberration on optical axis, and causing light from second end face toward object to be observed to be converged. Image fiber takes light from light source from first end face, and transmits light to second end face, and takes light, reflected and scattered by a surface of object, converged by axial aberration optical system, and focused for each plural core on second end face, from second end face and transmits light to first end face.

    DISTRIBUTED OPTICAL SENSING DEVICES AND METHODS PERFORMING A MEASUREMENT
    38.
    发明申请
    DISTRIBUTED OPTICAL SENSING DEVICES AND METHODS PERFORMING A MEASUREMENT 审中-公开

    公开(公告)号：US20160258808A1

    公开(公告)日：2016-09-08

    申请号：US15060430

    申请日：2016-03-03

    申请人： AiQ Dienstleistungen UG (haftungsbeschränkt)

    发明人： Gregor Cedilnik

    IPC分类号： G01J1/04 ,  G01N21/47 ,  G01J1/42

    CPC分类号： G01J1/0425 ,  G01B11/16 ,  G01D5/25 ,  G01D5/35364 ,  G01J1/42 ,  G01J2001/4238 ,  G01K11/32 ,  G01K2011/324 ,  G01N21/474 ,  G01N2021/4742

    摘要： Distributed optical sensing devices are provided. The device may comprise a computing unit configured to receive signals indicative of an amount of light backscattered in an optical fiber and detected by a light detector; wherein the computing unit is further configured to correct the received signal for an amount of backscattered light undetected by the light detector due to dead time of the light detector. Or, the device may comprise a first light detector having a first light sensitivity and configured to detect light backscattered in a first distance range of an optical fiber; and a second light detector different to the first light detector and having a second light sensitivity being higher than the first light sensitivity, wherein the second light detector is configured to detect light backscattered in a second distance range of an optical fiber being farther away from the second light detector than the first distance range is away from the first light detector. Or, the device may comprise an optical fiber; a light source coupled to the optical fiber and configured to input a light pulse into the optical fiber; and at least one photon counting type detector. Then, either the detector has a dynamic range having an upper boundary and a lower boundary, being coupled to the optical fiber and being configured to measure light backscattered from a distance range of the optical fiber and to generate a signal indicative of the amount of the detected backscattered light, wherein the device is configured to restrict the generated signal to the dynamic range while maintaining a strength of the inputted light pulse, or alternatively, the detector has an input terminal optically coupled to the optical fiber and configured to receive the backscattered light pulse, and the device further comprises a variable attenuator arranged before the input terminal, wherein the distributed optical sensing device is configured to modify an attenuation of the backscattered light pulse during a single measuring cycle by the variable attenuator.

    OPTICAL OBSERVATION APPARATUS AND OPTICAL OBSERVATION METHOD
    40.
    发明申请
    OPTICAL OBSERVATION APPARATUS AND OPTICAL OBSERVATION METHOD 有权
    光学观察装置和光学观测方法

    公开(公告)号：US20160061724A1

    公开(公告)日：2016-03-03

    申请号：US14835229

    申请日：2015-08-25

    申请人： MITUTOYO CORPORATION

    发明人： Yutaka MIKI

    IPC分类号： G01N21/47

    CPC分类号： G01N21/474 ,  G01B11/24 ,  G01N2021/4709 ,  G01N2021/4742

    摘要： Optical observation apparatus includes: light source emitting broadband light; image fiber with first and second end faces, wherein end faces of plural cores are two-dimensionally arrayed in first and second end faces; imaging optical system provided on first end face side of image fiber, causing light from first end face to be imaged on imaging plane; and axial aberration optical system provided on second end face side of image fiber, having an axial chromatic aberration on optical axis, and causing light from second end face toward object to be observed to be converged. Image fiber takes light from light source from first end face, and transmits light to second end face, and takes light, reflected and scattered by a surface of object, converged by axial aberration optical system, and focused for each plural core on second end face, from second end face and transmits light to first end face.

    摘要翻译： 光学观察装置包括：发射宽带光的光源; 具有第一和第二端面的图像光纤，其中多个芯的端面被二维排列在第一和第二端面中; 设置在图像光纤的第一端面侧的成像光学系统，使来自第一端面的光在成像面上成像; 以及设置在图像光纤的第二端面侧的轴向像差光学系统，在光轴上具有轴向色差，并且使来自第二端面的光朝向物体被观察到会聚。 图像光纤从第一端面的光源中取出光，并将光透射到第二端面，并被物体表面照射，反射和散射，由轴向像差光学系统会聚，并且聚焦在第二端面上的每个多个芯 从第二端面向第一端面透射光。