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    Dual-optical-path spectrophotometer and color measurement method thereof
    65.
    发明授权
    Dual-optical-path spectrophotometer and color measurement method thereof 有权

    公开(公告)号：US11815396B2

    公开(公告)日：2023-11-14

    申请号：US17700476

    申请日：2022-03-21

    Applicant: CAIPU TECHNOLOGY (ZHEJIANG) CO., LTD.

    Inventor： Kun Yuan ,  Shuanghu Gong ,  Jian Wang

    IPC: G01J3/02

    CPC classification number: G01J3/0251 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/0237 ,  G01J3/0294

    Abstract: Disclosed are a dual-optical-path spectrophotometer and a color measurement method thereof. The spectrophotometer includes an integrating sphere, a light source, and a sensor. A second shutter, a semi-reflecting and semi-transmitting device and lenses are arranged between the detection hole and the sensor, and a light guide device and a first shutter are arranged between a light guide hole formed in the integrating sphere and the semi-reflecting and semi-transmitting device. The color measurement method includes the following steps. A first shutter is closed, a second shutter is opened, light, reflected by the measuring opening, enters a sensor and the sensor measures a spectral reflected signal of the object surface. The first shutter is opened, the second shutter is closed, reflected light enters the sensor, and the sensor measures a spectral reflected signal of a light source. A final sampled signal is calculated.

    Colour recipe calculating method for matt colour standards
    66.
    发明授权
    Colour recipe calculating method for matt colour standards 有权

    公开(公告)号：US09874476B2

    公开(公告)日：2018-01-23

    申请号：US14360926

    申请日：2012-11-14

    Applicant: AXALTA COATING SYSTEMS IP CO., LLC

    Inventor： Wilhelm Kettler ,  Peter Jelen ,  Oliver Korten

    IPC: G01J3/46 ,  G01J3/02 ,  G01J3/50 ,  G01N21/47 ,  G01N21/57

    CPC classification number: G01J3/463 ,  G01J3/0251 ,  G01J3/46 ,  G01J3/462 ,  G01J3/504 ,  G01N21/4785 ,  G01N21/57

    Abstract: The invention relates to a method for colour recipe calculation for matt colour standards with the steps: A) experimentally determining reflection spectra R(exp) of the color standard, comprising a first reflection spectrum (SPIN) and a second reflection spectrum (SPEX), with an integrating sphere color measurement instrument, wherein said first reflection spectrum (SPIN) is obtained at (A1) d/8°—geometry with the specular component included, and said second reflection spectrum (SPEX) is obtained at (A2) d/8°—geometry with the specular component excluded; B1) calculating a recipe for the matt color standard based on the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, or B2) comparing the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, with reflection spectra associated to color recipes of a color recipe database for glossy color shades and identifying from said color recipe database a stored reflection spectrum which comes closest to the experimentally determined reflection spectrum R(exp) of the matt color standard, as well as the associated colour recipe; C) converting reflection spectra data of the experimentally determined reflection spectra (SPIN, SPEX) of the matt colour standard to gloss values, and D) converting the gloss values obtained to the amount of matting agent (MAA) with the assistance of previously prepared calibration curves for the available colorant system.

    Automated color tuning of an LED based illumination device
    68.
    发明授权
    Automated color tuning of an LED based illumination device 有权
    基于LED的照明设备的自动色彩调整

    公开(公告)号：US09328880B2

    公开(公告)日：2016-05-03

    申请号：US14500661

    申请日：2014-09-29

    Applicant: Xicato, Inc.

    Inventor： Gerard Harbers

    IPC: H01S4/00 ,  H05B33/10 ,  F21K99/00 ,  F21V9/16 ,  G01J3/02 ,  G01J3/50 ,  F21Y101/02 ,  H01J17/49 ,  H05B33/00 ,  H05B33/02

    CPC classification number: F21K9/90 ,  F21K9/64 ,  F21V9/30 ,  F21Y2115/10 ,  G01J3/0251 ,  G01J3/505 ,  H01J17/49 ,  H05B33/00 ,  H05B33/02 ,  H05B33/10

    Abstract: The color of light emitted by an assembled light emitting diode (LED) based illumination device with at least two different wavelength converting materials is automatically tuned to within a predefined tolerance of a target color point by modifying portions of the wavelength converting materials. The color of light emitted from the assembled LED based illumination device is measured and a material modification plan is determined based at least in part on the measured color of light and a desired color of light to be emitted. The material modification plan may further include the location of the wavelength converting materials to be modified. The wavelength converting materials are selectively modified in accordance with the material modification plan so that the assembled LED based illumination device emits a second color of light that is within a predetermined tolerance of a target color point.

    Abstract translation: 由具有至少两种不同波长转换材料的组装的基于发光二极管（LED）的照明装置发射的光的颜色通过修改波长转换材料的一部分而被自动调节到目标色点的预定公差内。 测量从组装的基于LED的照明装置发射的光的颜色，并且至少部分地基于所测量的光的颜色和要发射的光的期望颜色来确定材料修改计划。 材料修改计划可以进一步包括待修改的波长转换材料的位置。 根据材料修改方案选择性地修改波长转换材料，使得组装的基于LED的照明装置发射在目标色点的预定公差内的第二颜色的光。

    Spectrophotometric colorimeter based on LED light source and method for realizing the same
    69.
    发明授权
    Spectrophotometric colorimeter based on LED light source and method for realizing the same 有权
    基于LED光源的分光光度计色差计及其实现方法

    公开(公告)号：US09243953B1

    公开(公告)日：2016-01-26

    申请号：US14618036

    申请日：2015-02-10

    Applicant: HANGZHOU CHNSPEC TECHNOLOGY CO. LTD ,  CHINA JILIANG UNIVERSITY

    Inventor： Kun Yuan ,  Yiping Wu ,  Cong Wang ,  Shangzhong Jin

    IPC: G01N21/25 ,  G01J3/02 ,  G01J3/50 ,  G01J3/51

    CPC classification number: G01J3/0251 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0262 ,  G01J3/501 ,  G01J3/502 ,  G01J3/513 ,  G01J3/524

    Abstract: The present disclosure provides a spectrophotometric colorimeter based on LED light source, wherein the spectrophotometric colorimeter includes an integrating sphere, a coupling light path, and a spectrometer. An inner wall of the integrating sphere is arranged with a composite light source consisting of eight LEDs; a sphere wall of the integrating sphere defines an incident aperture; light emitted from each LED enters an interior of the integrating sphere through the incident aperture and is irradiated onto the inner wall. The coupling light path is configured to couple light at a measurement caliber such that the light can enter an incident split and to eliminate stray light from the inner wall. After emitting out from an observation aperture of the integrating sphere, the light enters the incident split through the coupling light path and is irradiated onto a linear-array sensor after being split by a spectral light path; and different pixels of the linear-array sensor correspond to light radiation strengths at different wavelengths.

    Abstract translation: 本公开提供了一种基于LED光源的分光光度比色计，其中分光光度计色度计包括积分球，耦合光路和光谱仪。 积分球的内壁布置有由八个LED组成的复合光源; 积分球的球壁限定入射孔; 从每个LED发射的光通过入射孔进入积分球的内部并照射到内壁上。 耦合光路被配置为以测量口径耦合光，使得光可以进入入射分裂并消除来自内壁的杂散光。 从积分球的观察孔射出后，光通过耦合光路入射入射，并在被分光光路分割后照射到线阵阵传感器上; 并且线性阵列传感器的不同像素对应于不同波长的光辐射强度。

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