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    PORTABLE COLOR MEASURING DEVICE
    231.
    发明公开
    PORTABLE COLOR MEASURING DEVICE 审中-公开
    便携式色度计

    公开(公告)号：EP1259786A1

    公开(公告)日：2002-11-27

    申请号：EP01910448.8

    申请日：2001-02-07

    Applicant: Applied Color Systems, Inc.

    Inventor： RUEVSKI, Peter, A. ,  DALLAS, Stephen, M.

    IPC: G01J3/50

    CPC classification number: G01J3/02 ,  G01J3/0251 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/50 ,  G06F8/65

    Abstract: A portable color measuring device (10) is provided that includes a hand-holdable housing (15). The color measuring device (10) is configured to receive an independently operable processing device (105) that is mounted to the housing (15). The independently operable processing device (105) is a portable general purpose computer that executes software application to control the operation of the color measuring device (10) and process color data. The color measuring device (10) measures the color properties of a sample by illuminating the sample with a light source (35). The measured properties are processed and/or analyzed by the independently operable processing device (105) allowing software upgrades or modifications to be easily performed. New applications can be downloaded to the processing device (105) or the processing device (105) can be interchanged with a different processing device.

    PROGRAMMABLE SPECTROPHOTOMETER
    233.
    发明授权
    PROGRAMMABLE SPECTROPHOTOMETER 失效
    PROGRAMMERBARES SPEKTROPHOTOMETER

    公开(公告)号：EP0670036B1

    公开(公告)日：2002-03-20

    申请号：EP94902332.9

    申请日：1993-11-19

    Applicant: X-RITE, INC.

    Inventor： PETERSEN, Steven, H. ,  OVERBECK, James, L. ,  OUWINGA, Ross

    IPC: G01J3/50

    CPC classification number: G01J3/50 ,  G01J3/02 ,  G01J3/0251 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0272 ,  G01J2003/283

    Abstract: A color measuring system (10) includes a portable spectrophotometer (100) connectable to a general-purpose computer (130). The portable unit (100) includes a microprocessor with a read-only program memory for storing machine executable instructions and input/output functions. A random-access data memory is used to temporarily store process data for later transfer to the general-purpose computer (130) or to store in a command buffer area transferred high-level, generalized commands from the general-purpose computer (130). The microprocessor also includes a command interpreter which reads a generalized command from data memory and executes the predefined sequence of machine executable functions.

    GEMSTONE EVALUATION SYSTEM
    234.
    发明公开
    GEMSTONE EVALUATION SYSTEM 失效
    等级系统PRECIOUS

    公开(公告)号：EP0805965A1

    公开(公告)日：1997-11-12

    申请号：EP96903621.0

    申请日：1996-01-23

    Applicant: UGTS, INC.

    Inventor： VALENTE, Kevin, A. ,  REUTER, Ernest, R. ,  WAGNER, Randall, M.

    IPC: G01J3 ,  G01N21

    CPC classification number: G01J3/50 ,  G01J3/0251 ,  G01J3/504 ,  G01J3/51 ,  G01N21/87

    Abstract: The invention relates to evaluation of gemstones and other transparent specimens and in particular to color grading of gemstones. The device utilizes a band pass filter (23) which transmits light through lenses (32) onto the detector array (31) to obtain the spectral response of a complete image. The gemstone is illuminated with annular light ring (22), which receives light from a light source (18) located in the right half compartment (14), in a way that provides for analysis of both reflected and transmitted light. The device utilizes multiple lighting angles to construct a composite image that is used to perform the grading of the gemstones.

    SCANNING COLORIMETER
    236.
    发明公开
    SCANNING COLORIMETER 失效
    扫描比色计

    公开(公告)号：EP0781401A1

    公开(公告)日：1997-07-02

    申请号：EP95932500.0

    申请日：1995-09-14

    Applicant: X-RITE, INC.

    Inventor： BERG, Bernard, J. ,  BAKER, Douglas, V. ,  BOWDEN, David, R. ,  BOES, Thomas, J. ,  ZANDSTRA, Lawrence, D.

    IPC: G01J3

    CPC classification number: G01J3/50 ,  G01J3/0251 ,  G01J3/0272 ,  G01J3/51 ,  G01J3/524 ,  G01J2003/2866

    Abstract: A colorimeter for reading color bars (403, 404) of printed sheets (401) or the like includes a longitudinally extending base (400) including a paper stop (442) along which a sheet to be tested for color may be positioned. An autonomously operating colorimeter head (410) is moved along the base in a direction parallel to the edge of the sheet by means of an electric motor (600) mounted on the base and driving an helical thread lead screw (418) engaging an X-axis carriage supporting the head. The head is moved by operation of the lead screw in a direction parallel to the edge of the sheet, referred to as the direction of the X-axis. The head includes an electric motor and a Y-axis transport supporting an optics unit (510). The optics unit is moved within the head in a direction parallel to a Y-axis, extending perpendicularly to the X-axis.

    Abstract translation: 用于读取印刷片（401）等的彩条（403,404）的色度计包括纵向延伸的基部（400），该基部（400）包括纸张止挡（442），沿着该基部可以定位待测试颜色的纸张。 借助于安装在底座上的电动机（600）沿平行于片材边缘的方向沿着基座移动自主操作的色度计头（410），并驱动螺旋螺纹丝杠（418） 支持头部的轴支架。 头部通过丝杠的操作在平行于薄片边缘的方向上移动，称为X轴的方向。 头部包括电动机和支撑光学单元（510）的Y轴输送器。 光学单元在头部内沿平行于Y轴的方向移动，垂直于X轴延伸。

    Portable spectrophotometer
    237.
    发明公开
    Portable spectrophotometer 失效
    Tragbares Spektrophotometer。

    公开(公告)号：EP0569104A1

    公开(公告)日：1993-11-10

    申请号：EP93201318.8

    申请日：1993-05-07

    Applicant: X-RITE, INC.

    Inventor： Berg, Bernard J. ,  Boes, Thomas J. ,  Cargill, Mark A. ,  Rood, Patrick S.

    IPC: G01N21/47

    CPC classification number: G01J3/51 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0251 ,  G01J3/10 ,  G01J3/513 ,  G01N21/474 ,  G01N21/55 ,  G01N2021/556 ,  G01N2201/065

    Abstract: A portable spectrophotometer includes a small-diameter optical sphere (101) as well as optical detectors (130, 136) and signal processing and display circuitry (140, 142) which allows the instrument to be taken to an object to be measured and which provides a readout of color values at the portable instrument. The instrument is capable of providing specular-included and specular-excluded color readings simultaneously. The interior of the integrating sphere is coated with a highly reflective, color-absorbing material, and light from an incandescent lamp (103) is diffused within the sphere prior to reaching the object to be measured. The sphere is provided with a first aperture (120) which receives spectrally-included light and which is positioned to absorb a spectral component of the diffused source light. A second aperture (125) positioned at a corresponding angular position with respect to the object measures specular-excluded light, excluding the specular component absorbed by the first aperture. By appropriately combining the specular-included and specular-excluded light at one wavelength, a value for the specular component is derived.

    Abstract translation: 便携式分光光度计包括小直径光学球（101）以及光学检测器（130,136）以及信号处理和显示电路（140,142），其允许将仪器带到被测量物体，并提供 在便携式仪器上读出颜色值。 该仪器能够同时提供镜面包含和镜面排除的色彩读数。 积分球的内部涂覆有高反射性的彩色吸收材料，并且来自白炽灯（103）的光在到达待测量物体之前在球体内扩散。 球体设置有第一孔（120），其接收光谱包围的光并被定位成吸收漫射源光的光谱分量。 位于相对于物体的相应角度位置的第二孔径（125）测量除了由第一孔径吸收的镜面反射分量的镜面排除的光。 通过适当地组合在一个波长处的镜面反射光和镜面反射光，导出镜面反射分量的值。

    Portable colorimeter and method for characterization of a colored surface
    238.
    发明公开
    Portable colorimeter and method for characterization of a colored surface 失效
    Tragbares Kolorimeter und Verfahren zur Kennzeichnung einer farbigenOberfläche。

    公开(公告)号：EP0375317A2

    公开(公告)日：1990-06-27

    申请号：EP89313197.9

    申请日：1989-12-18

    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

    Inventor： Steenhoek, Larry E.

    IPC: G01J3/50 ,  G01N21/47 ,  G01J3/36

    CPC classification number: G01J3/50 ,  G01J3/0251 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/463 ,  G01J3/465 ,  G01J3/502 ,  G01J3/504 ,  G01J3/524 ,  G01J2003/466 ,  G01N21/4738 ,  G01N2021/4711 ,  G01N2021/4771

    Abstract: A portable colorimeter for characterizing the optical properties of a colored surface and in particular a colored surface containing metallic or pearlescent particles, which employs three multiangular spectrophotometric measurements to derive color constants for the surface. The colorimeter is a compact integrated unit housing irradiation, detection, control, analysis and display means and employs three illumination angles, preferably -30°, O°, and 65°, and one detection angle, preferably 45°, all measured from the sample normal. The method includes determining the tristimulus values of the color of the sample surface from low resolution spectral reflectance data preferably using twelve detector elements.

    Abstract translation: 用于表征着色表面的光学性质的便携式色度计，特别是含有金属或珠光颗粒的着色表面，其使用三个多角度分光光度测量法来导出表面的颜色常数。 色度计是一个紧凑的一体化单元，容纳照射，检测，控制，分析和显示装置，并采用三个照明角度，优选-30°，0°和65°，一个检测角，最好是45°，全部从样品测量 正常。 该方法包括优选使用十二个检测器元件从低分辨率光谱反射率数据确定样品表面的颜色的三刺激值。

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