公开(公告)号：EP1681541A1

公开(公告)日：2006-07-19

申请号：EP06005167.9

申请日：2005-09-30

Applicant: GretagMacbeth, LLC

Inventor： Lianza, Thomas A. ,  Federico, Richard A. ,  Lutz, Carl D.

IPC: G01J3/02 ,  G01J3/46 ,  G01N21/25

CPC classification number: G01J3/02 ,  G01J1/42 ,  G01J3/0262 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513

Abstract: A colorimeter method and apparatus is described. The colorimeter includes a plurality of sensors/filter systems with non overlappng spectral responses, adequate for providing data capable of translation into standard coordinates system such as, CIE XYZ, CIE L* a* b*, or CIE Luv, as well as non-standard operable coordinate systems. The field of view of the colorimeter is chosen to closely track the response of the human eye using an optical path configured to select and limit the field of view in a manner that is insensitive to placement of the colorimeter on the source image. The optical path from the source image to the sensor is configured to select preferred light rays while rejecting undesirable light rays to maximize the signal/noise ratio. A rearward facing sensor channel is included to simultaneously measure ambient light impinging on the source image and feedback means to provide status and/or change of information.

Abstract translation: 描述了色度计的方法和装置。 色度计包括具有非叠加光谱响应的多个传感器/滤波器系统，足以提供能够转换成诸如CIE XYZ，CIE L * a * b *或CIE Luv的标准坐标系统的数据， 标准可操作的坐标系。 选择色度计的视野以使用配置成以对色度计放置在源图像上不敏感的方式选择和限制视场的光路来密切跟踪人眼的响应。 从源图像到传感器的光路被配置为选择优选的光线，同时抑制不期望的光线以使信号/噪声比最大化。 包括向后的传感器通道以同时测量照射在源图像上的环境光和反馈装置以提供信息的状态和/或变化。

公开(公告)号：EP1519167A3

公开(公告)日：2005-06-01

申请号：EP04255865.0

申请日：2004-09-24

Applicant: X-RITE, INC.

Inventor： Vander Jagt, Peter G. ,  Xiang, Ann ,  Williams, Gregory A.

IPC: G01J3/02 ,  G01J3/46

CPC classification number: G01J3/51 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0224 ,  G01J3/0272 ,  G01J3/46 ,  G01J3/462 ,  G01J3/506 ,  G01J3/513

Abstract: A color measurement system (5) includes a multi-purpose filter and optics assembly (36). The filter and optics assembly includes at least one tube array (60) for segmenting received light. The segmented light is mixed and the polarization qualities of the light are modified so to minimize the effects caused by angular adjustments. A diffuser (56) mixes the segmented light. Additionally, the color measurement system includes an ambient light attachment (24) for collecting light from the viewing area surrounding a computer display. The ambient light collected is then analyzed, and a viewing area profile is created. The viewing area profile then can be used by software to adjust the colors displayed on the computer displays.

公开(公告)号：EP1521069A2

公开(公告)日：2005-04-06

申请号：EP04023051.8

申请日：2004-09-28

Applicant: MAZet GmbH

Inventor： Grunert, Fred, Dr. ,  Krumbein, Frank ,  Siess, Gunter

IPC: G01J3/51

CPC classification number: G01J3/51 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/513

Abstract: Die Erfindung betrifft einen Photosensor zur Farbmessung auf Basis von drei Spektralanteilen, insbesondere für die hochgenaue Farbmessung bei der Prüfung und Sicherung der Farbkonstanz von technischen Oberflächen und beliebigen Konsumgütern.
Die Aufgabe, eine neue Möglichkeit zur Farbmessung auf Basis eines Dreibereichsverfahrens mit durch vorgelagerte unterschiedlich spektralempfindliche Interferenzfilter erzeugten Farbmesswerten zu finden, die mit einfachen Mitteln eine nahezu normgerechte Echtfarben-Messung ohne aufwendige Bezugslichtkalibrierung gestattet, wird erfindungsgemäß gelöst, indem der Photosensor aus mindestens drei mit unterschiedlichen auf die X-, Y- und Z-Spektralcharakteristik des menschlichen Auges angepassten Interferenzfiltern bedeckten Teilflächen besteht, die jeweils flächengleich und kreissektorförmig gleichverteilt um ein Zentrum mit dazwischenliegenden passivierten Stegen angeordnet sind, und jede Teilfläche mit einem in seiner Transmissionscharakteristik über die Wellenlänge des spektral zu messenden Lichts der Empfindlichkeit des menschlichen Auges angepasstes Interferenzfilter versehen ist, wobei die durchgelassenen Spektralanteile der Interferenzfilter jeweils den Normspektralwertfunktionen des menschlichen Auges in Farbkoordinaten des Farbraumes angenähert sind.

Abstract translation: 光电管组件具有壳体（3），其前部具有窗口（31），其具有IR滤光器（32）。 传感器芯片（1）安装在基板上，并且具有三个不同的光电管（11）或具有干涉滤光器（2）的光电池组，从而对三种不同波长的光敏感。 有三个不同的接触针（4），每个具有与不同光电管之一的触点。

公开(公告)号：EP1470918A2

公开(公告)日：2004-10-27

申请号：EP04252096.5

申请日：2004-04-08

Applicant: QUAD/TECH, INC.

Inventor： Noffke, Patrick James ,  Younk, Patrick ,  Moersfelder, Bradley S.

IPC: B41F33/00 ,  G01J3/50 ,  G01J3/28

CPC classification number: G01J3/2803 ,  B41F33/0036 ,  G01J3/2823 ,  G01J3/50 ,  G01J3/502 ,  G01J3/513 ,  G01J3/524

Abstract: An image processing apparatus and method for measuring spatial and spectral information from an image of a printed substrate. The image processing apparatus processes the spatial and spectral information from the same acquired image using first and second processors. One of the first or second processors includes a large format sensor and the other of the first or second processors includes a small format sensor. Both the first and second processors are capable of processing both the spatial and spectral information and neither the first or second processor is necessarily dedicated to processing only the spatial or spectral information.

公开(公告)号：EP1440297A1

公开(公告)日：2004-07-28

申请号：EP02795338.9

申请日：2002-10-24

Applicant: Delgrande, Jean-Pierre ,  Chokron, Emile

Inventor： Delgrande, Jean-Pierre ,  Chokron, Emile

IPC: G01J3/51 ,  A61C19/10

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513

Abstract: The invention concerns a dental colorimetry measuring apparatus comprising: a white light source, means for projecting the light flux emitted on a tooth to be measured, means for collecting the flux diffused by the tooth, means for spectral selection of the diffused flux, means for measuring spectrally selected light fluxes, means for processing the result of said measurements for classifying the measured tooth relative to a dental shade guide. The apparatus comprises a transceiver set and a measuring head urged into contact with the tooth to be measured, the measuring head being connected to the transceiver set through a fiber optic bundle. The measuring head includes an electric switch triggered by pressing the head on the tooth and controls measurement.

公开(公告)号：EP1374643A1

公开(公告)日：2004-01-02

申请号：EP02705013.7

申请日：2002-03-19

Applicant: Koninklijke Philips Electronics N.V.

Inventor： MUTHU, Subramanian

IPC: H05B33/08

CPC classification number: G01J3/51 ,  G01J3/513 ,  G01J2001/4252 ,  G09G3/3406 ,  H05B33/0863 ,  H05B33/0869 ,  Y10S362/80

Abstract: A system for controlling a RBG based LED luminary which tracks the tristimulus values of both feedback and reference whereby the forward currents driving the LED luminary are adjusted in accordance with the errors between the feed tristimulus values and the reference tristimulus values until the errors are zero.

公开(公告)号：EP1196745A1

公开(公告)日：2002-04-17

申请号：EP00947559.1

申请日：2000-07-20

Applicant: CV US, Inc.

Inventor： BOLES, John, A. ,  EASTMAN, Jay, M. ,  FOX, William, J. ,  GREENWALD, Roger, J. ,  HUTCHISON, Robert, J. ,  MERLE, Cormic, K.

IPC: G01J3/51

CPC classification number: G01J1/06 ,  G01J3/02 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  G01J5/602

Abstract: A colorimeter capable of calibrating color monitors, whether having cathode ray tube or liquid crystal (LCD) displays, is provided by a photometric array of photodetector (38) and optical filter (50) pairs. The filters (50) include long-pass, edge filters which cover overlapping regions at the upper end of the visible spectrum and a filter which covers the entire visible spectrum. The outputs of the photodetectors (38) are digitally synthesized to provide a response which mimics the response established by the Commission Internationale de l'Eclairage (CIE) xyz (bar) functions almost perfectly. The response which is mimicked may be represented by the CIE color matching functions. The pairs (38, 50) and the associated components are mounted on a printed circuit board (32) captured in a clamshell housing (12, 14) and having an array of apertures (20) which define angularly constrained fields of view of a surface from which the light, to be colormetrically analyzed, emanates.

公开(公告)号：EP0921381A3

公开(公告)日：2000-11-08

申请号：EP98309501.9

申请日：1998-11-19

Applicant: Baldwin-Japan Ltd.

Inventor： Tsukamoto, Yoshio ,  Kurachi, Akira

IPC: G01J3/51

CPC classification number: G01J3/51 ,  G01J3/513 ,  G01J2003/466

Abstract: There is disclosed an optical color sensor 16 comprising a light source 18 which comprises white LEDs for directing a white light onto a product 4 to be inspected, to directly illuminate the product 4 and generate a reflected light reflected from the product. The optical color sensor 16 further comprises first photo detecting element means 22 spaced from the product 4. A blue filter 24 is interposed between the first photo detecting element means 22 and the product 4 so that the first photo detecting element means 22 can receive and detect the reflected light passing through the blue filter 24. The optical color sensor 16 further comprises second photo detecting element means 26 spaced from the product 4. A red filter 28 is interposed between the second photo detecting element means 26 and the product 4 so that the second photo detecting element means 26 can receive and detect the reflected light passing through the red filter 28. The first and second photo detecting element means 22,26 are arranged to receive and detect the reflected light reflected from the product 4 at substantially the same position in a region onto which the white LEDs direct the white light.

公开(公告)号：EP0921381A2

公开(公告)日：1999-06-09

申请号：EP98309501.9

申请日：1998-11-19

Applicant: Baldwin-Japan Ltd.

Inventor： Tsukamoto, Yoshio ,  Kurachi, Akira

IPC: G01J3/51

CPC classification number: G01J3/51 ,  G01J3/513 ,  G01J2003/466

Abstract: There is disclosed an optical color sensor 16 comprising a light source 18 which comprises white LEDs for directing a white light onto a product 4 to be inspected, to directly illuminate the product 4 and generate a reflected light reflected from the product. The optical color sensor 16 further comprises first photo detecting element means 22 spaced from the product 4. A blue filter 24 is interposed between the first photo detecting element means 22 and the product 4 so that the first photo detecting element means 22 can receive and detect the reflected light passing through the blue filter 24. The optical color sensor 16 further comprises second photo detecting element means 26 spaced from the product 4. A red filter 28 is interposed between the second photo detecting element means 26 and the product 4 so that the second photo detecting element means 26 can receive and detect the reflected light passing through the red filter 28. The first and second photo detecting element means 22,26 are arranged to receive and detect the reflected light reflected from the product 4 at substantially the same position in a region onto which the white LEDs direct the white light.

Abstract translation: 公开了一种光学颜色传感器16，其包括光源18，光源18包括用于将白光引导到待检查的产品4上的白色LED，以直接照射产品4并产生从产品反射的反射光。 光学颜色传感器16还包括与产品4间隔开的第一光电检测元件装置22.蓝色滤光器24介于第一光电检测元件装置22和产品4之间，使得第一光电检测元件装置22可以接收和检测 反射光通过蓝色滤光器24.光学颜色传感器16还包括与产品4间隔开的第二光电检测元件装置26.红色滤光器28介于第二光电检测元件装置26和产品4之间， 第二光检测元件装置26可以接收和检测通过红色滤光器28的反射光。第一和第二光检测元件装置22,26布置成接收并检测从产品4反射的基本上相同的位置 在白色LED指示白光的区域中。

公开(公告)号：EP0909376A1

公开(公告)日：1999-04-21

申请号：EP97901920.0

申请日：1997-01-02

Applicant: LJ Laboratories, L.L.C.

Inventor： JUNG, Wayne, D. ,  JUNG, Russel, W. ,  LOUDERMILK, Alan, R.

IPC: A61C19 ,  G01J3 ,  G01N21 ,  A61B1

CPC classification number: A61C19/10 ,  A61B2560/0233 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/04 ,  G01J3/10 ,  G01J3/46 ,  G01J3/50 ,  G01J3/508 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G01N21/474 ,  G01N21/57

Abstract: Color/optical characteristics measuring systems and methods are disclosed. Perimeter receiver fiber optics/elements (7) are spaced apart from a central source fiber optic/element (5) and received light reflected from the surface of the object (20) is measured. Light from the perimeter fiber optics (7) pass to a variety of filters. The system utilizes the perimeter receiver fiber optics (7) to determine information regarding the height and angle of the probe (1) with respect to the object (20) being measured. Under processor control (20), the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe (1) may have a removable or shielded tip for contamination prevention.