LIGHTING UNIT, AND IMAGE PICKUP DEVICE
    233.
    发明公开
    LIGHTING UNIT, AND IMAGE PICKUP DEVICE 审中-公开
    BELEUCHTUNGSEINHEIT UND BILDERFASSUNGSEINRICHTUNG

    公开(公告)号:EP1757913A1

    公开(公告)日:2007-02-28

    申请号:EP05748457.8

    申请日:2005-06-06

    Abstract: There is provided a small sized imaging apparatus which can measure with high accuracy a color distribution of a surface of an object, in which a light intensity distribution on a predetermined surface in a direction substantially perpendicular to an optical axis is uniform, and a change in an amount of light in a direction along the optical axis is reduced, and an illuminating unit which used in this imaging apparatus. (The imaging apparatus) Includes a light source section (210) which supplies illuminating light, a diffusing section (211) which diffuses by reflecting the illuminating light from the light source section (210), and aperture sections (212a and 212b) which allow to emerge diffused illuminating light, and the aperture sections (212a and 212b) has an aperture diameter D which allows the diffused illuminating light to emerge as a substantially parallel light.

    Abstract translation: 提供了一种小尺寸的成像装置,其可以高精度地测量物体表面的颜色分布,其中在基本上垂直于光轴的方向上的预定表面上的光强度分布是均匀的, 沿着光轴的方向上的光量减少,并且在该成像装置中使用的照明单元。 (成像装置)包括:提供照明光的光源部(210),通过反射来自光源部(210)的照明光而扩散的漫射部(211);以及允许 出现扩散的照明光,并且开口部分(212a和212b)具有孔径D,其允许扩散的照明光出现为基本上平行的光。

    Equipement et procédé de mesure de teinte dentaire
    236.
    发明公开
    Equipement et procédé de mesure de teinte dentaire 有权
    Vorrichtung und Verfahren zur Zahnfarbenbestimmung

    公开(公告)号:EP1566617A1

    公开(公告)日:2005-08-24

    申请号:EP04356023.4

    申请日:2004-02-20

    Abstract: L'invention concerne un dispositif de mesure de teinte dentaire comprenant :

    des moyens d'illumination (24, 40, 42, 44, 48, 50), pour successivement illuminer au moins une partie d'une dent (D) avec des lumières de gammes spectrales différentes,
    au moins un capteur (26) sensible à une lumière en provenance de ladite partie de dent, en réponse à l'illumination, pour générer à chaque illumination de couleur différente, au moins un signal de mesure,
    des moyens (30,32) de conversion des signaux de mesure correspondant à ladite partie de dent, en des coordonnées d'un point de mesure (202), dans un espace de teintes dans lequel sont définis des points (320, 410, 540), dits de référence, correspondant aux teintes prédéterminées d'un nuancier, et
    des moyens (114) de recherche, pour la partie de dent, d'une teinte correspondant à un point de référence le plus proche du point de mesure, dans l'espace des teintes.

    Abstract translation: 该装置具有一组LEDS(40),每组通过光纤连接到光透射区域(24),并用不同光谱范围的光度连续照射一部分牙齿。 单色光传感器(26),例如 电荷耦合器件(CCD)传感器以提供允许恢复牙齿或牙齿的一部分的图像的信号的方式设置有一组像素。 还包括用于测量牙科污渍的过程的独立权利要求。

    Systems and methods for determining spectra using a multi-LED color sensor and dynamic Karhunen-Loeve algorithms
    237.
    发明公开
    Systems and methods for determining spectra using a multi-LED color sensor and dynamic Karhunen-Loeve algorithms 有权
    由多LED彩色传感器的装置和动态卡洛算法的系统和用于光谱的测定方法

    公开(公告)号:EP1291628A3

    公开(公告)日:2004-10-27

    申请号:EP02019476.7

    申请日:2002-08-30

    CPC classification number: G01J3/46 G01J3/462 G01J3/501 G01J3/524 G01J2003/467

    Abstract: An LED-based spectrophotometer uses a reconstruction algorithm, based on the spectral characteristics of the illumination source and the color sensing system, to convert integrated multiple illuminant measurements from a non-fully illuminant populated color sensor into a fully populated spectral curve using a reference database. The reference database contains training samples that indicate reflectance spectra and their corresponding LED sensor output. A dynamic, Karhunen-Loeve-based (DKL) spectral reconstruction algorithm, used to reconstruct spectra, gives greater importance to the data from the training samples in the neighborhood of the color sample under measurement. This is done using linear operators and basis vectors.

    Spectrophotometer
    238.
    发明公开
    Spectrophotometer 审中-公开
    Spektrofotometer

    公开(公告)号:EP1329708A3

    公开(公告)日:2003-07-30

    申请号:EP03250187.6

    申请日:2003-01-13

    Applicant: X-RITE, INC.

    Abstract: Color measurement instrument (10) including an integrating sphere (12), a beam splitter (16), a video camera (18), and a spectrograph (20). The beam splitter (16) is aligned with the viewing port (32) of the spectrophotometer to deliver the light reflected from the sample (S) to both the video camera (18) and the spectrograph (20). The video camera (18) provides an image of the position of the sample (S) with respect to the viewing port (32) of the sphere (12), enabling the visual observation and evaluation of the sample position prior to use of the spectrophotometer.

    Abstract translation: 具有改进的样品定位或定位的色彩测量仪器。 该系统包括积分球,分束器,摄像机和光谱仪。 分束器与分光光度计的观察口对准,以将从样品反射的光传送到摄像机和光谱仪。 视频摄像机提供样品相对于球体观察端口的位置的图像,使得能够在使用分光光度计之前对样品位置进行目视观察和评价。

    Printed image inspection apparatus
    239.
    发明公开
    Printed image inspection apparatus 审中-公开
    Gerätzur Inspektion gedruckter Abbildungen

    公开(公告)号:EP0952438A3

    公开(公告)日:2002-06-12

    申请号:EP99301663.3

    申请日:1999-03-05

    CPC classification number: G01J3/46 G01J3/501

    Abstract: A printed image inspection apparatus comprises an image reading section that irradiates a printed image being inspected with two types of light having different dominant wavelengths and reads images from the reflections of the two types of light, a judgment section that compares the images read by the image reading section with reference images stored in advance and judges the agreement between both, and an operation control section that control the operation of the image reading section and the judgment section. The image reading section comprises a first light source outputting blue light having a low reflectance with respect to yellow, magenta and black inks, and a second light source outputting yellow light having a low reflectance with respect to cyan, magenta and black inks.

    Abstract translation: 印刷图像检查装置包括:图像读取部,其利用具有不同主波长的两种类型的光照射被检查的打印图像,并且从两种类型的光的反射中读取图像;判断部,其比较由图像读取的图像 读取部分,其具有预先存储的参考图像并判断两者之间的一致性,以及控制图像读取部分和判断部分的操作的操作控制部分。 图像读取部分包括输出相对于黄色,品红色和黑色墨水具有低反射率的蓝色光的第一光源和输出相对于青色,品红色和黑色墨水具有低反射率的黄色光的第二光源。

    Spectrophotometer for color printer with displacement insensitive optics
    240.
    发明公开
    Spectrophotometer for color printer with displacement insensitive optics 审中-公开
    Versetzungsunempfindliches SpektrophotometerfürFarbdruckgerät

    公开(公告)号:EP1103799A2

    公开(公告)日:2001-05-30

    申请号:EP00125513.2

    申请日:2000-11-21

    Abstract: An improved spectrophotometer for non-contact measuring of the colors of colored target areas, especially, test patches on moving printed test sheets in an unrestrained normal output path of a color printer, which test patches may be sequentially angularly illuminated with multiple different colors, with a photosensor providing electrical signals in response, the spectrophotometer having a lens system for transmitting that reflected illumination from the test patch to the photosensor with a lens magnification ratio of approximately one to one. The exemplary spectrophotometer provides non-contact color measurements of moving color target areas variably displaced therefrom within normal paper path baffle spacings, with a displacement insensitivity of at least 6 millimeters about a nominal target to spectrophotometer separation.

    Abstract translation: 一种改进的分光光度计,用于非接触式测量着色目标区域的颜色,特别是在彩色打印机的无限制的正常输出路径中移动的印刷测试片上的测试贴片,该测试贴片可以用多种不同颜色顺序地角度地照亮, 光电传感器提供响应的电信号,分光光度计具有透镜系统,用于以大约一对一的透镜倍率将来自测试片的反射照明传输到光传感器。 示例性分光光度计提供在正常纸路径挡板间隔内可变地从其移位的移动着色目标区域的非接触颜色测量,其中标称目标与分光光度计分离之间的位移不敏感度为至少6毫米。

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