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.

公开(公告)号：EP0444689B1

公开(公告)日：1995-12-20

申请号：EP91103052.6

申请日：1991-02-28

Applicant: X-RITE, INC.

Inventor： Cargill, Mark A. ,  Berg, Bernard J.

IPC: G01J3/46 ,  G01J3/51

CPC classification number: G01N21/474 ,  G01J3/02 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0291 ,  G01J3/465 ,  G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G01J2001/0257 ,  G01J2001/1636 ,  G01J2003/2866 ,  G01N21/274

公开(公告)号：EP0642005A1

公开(公告)日：1995-03-08

申请号：EP94401953.8

申请日：1994-09-02

Applicant: THOMSON-CSF

Inventor： Fontanella, Jean-Claude ,  Remy, Bertrand

IPC: G01J3/28

CPC classification number: G01J5/601 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/04 ,  G01J3/12 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/51 ,  G01J3/513 ,  H04N5/33 ,  H04N5/332

Abstract: Le dispositif optique d'imagerie comporte pour l'analyse spectrale d'une scène, d'une part, un masque (8) disposé dans le plan image intermédiaire (PI) comportant un nombre déterminé de fentes isolant chacune une partie déterminée de l'image de la scène observée, la grande dimension des fentes étant parallèle aux lignes de détecteurs élémentaires constituant le détecteur (11) et perpendiculaire à l'axe de rotation (6) du miroir (5), et comporte, d'autre part, une optique dispersive (9), disposée au voisinage de l'optique de reprise (10₁, 10₂) et séparant un nombre déterminé de longueurs d'onde issues du masque (8), l'optique dispersive (9) étant déterminée pour disperser chaque longueur d'onde dans une direction respective déterminée pour couvrir toute la surface sensible du détecteur (11) lors du balayage de la scène.
Les applications vont notamment à l'analyse spectrale de la signature thermique d'une cible et à la détection de gaz.

Abstract translation: 光学成像装置包括用于场景的光谱分析的方法，一方面是布置在中间图像平面（PI）中的掩模（8），包括限定数量的狭缝，每个狭缝分隔所观察到的图像的图像的限定部分 另一方面，狭缝的大尺寸平行于构成检测器（11）的基本检测器的线并且垂直于反射镜（5）的旋转轴线（6），并且另一方面包括色散透镜 9）布置在重聚焦透镜（101,102）附近并且分离来自掩模（8）的限定数量的波长，所述色散透镜（9）被设计成在每个波长的规定的方向上分散，以便 当扫描场景时，覆盖检测器（11）的整个敏感表面。 特别地，这些应用用于对目标的热特征进行光谱分析和气体检测。

公开(公告)号：EP0530818A2

公开(公告)日：1993-03-10

申请号：EP92115115.5

申请日：1992-09-03

Applicant: X-RITE, INC.

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

IPC: G01J3/50 ,  G01N21/47

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0272 ,  G01J3/50 ,  G01J3/504 ,  G01J3/513 ,  G01N21/474 ,  G01N2021/4711 ,  G01N2021/4742 ,  G01N2021/4757 ,  G01N2201/126

Abstract: A spectrophotometer apparatus (200) is adapted to provide spectral reflectance measurements of object, particularly optical characteristics of colored surfaces comprising metallic or pearlescent particles. The apparatus (200) comprises a source light and a reflection optics assembly. Signals representative of reflected light are analyzed and data is generated representative of the spectral response characteristics of the object sample. The apparatus employs a plurality of fiber optic bundles for receiving light reflected from the object sample, with each of the fiber optic bundles being positioned at one of a corresponding plurality of fixed angles different from the angle of illumination by the source light. Reflectance is measured at each angle by sequential switching such that light is impaired from being received from all but one of the plurality of multiple angles. Light received from the fiber optic bundles is transferee to a single array of integral interference-filter/photodiode devices which modulate the light and determine the spectro characteristics thereof. With the use of fiber optic devices, a single source of illumination and a single optical detector arrangement, the spectrophotometer apparatus is employed within an optimally small packaging configuration, and the apparatus can be maintained in a portable mode while maintaining relatively high accuracy and repeatability.

Abstract translation: 分光光度计装置（200）适于提供物体的光谱反射率测量，特别是包括金属或珠光颗粒的着色表面的光学特性。 装置（200）包括源光和反射光学组件。 分析表示反射光的信号，并生成表示对象样品的光谱响应特性的数据。 该装置采用多个光纤束，用于接收从物体样品反射的光，其中每个光纤束被定位成与源光的照明角度不同的对应的多个固定角度中的一个。 通过顺序切换在每个角度测量反射率，使得光从多个多个角度中的一个除外被接收。 从光纤束接收的光被转移到单个阵列的整体干涉滤光器/光电二极管装置，其调制光并确定其光谱特性。 通过使用光纤装置，单一的照明源和单个光学检测器装置，分光光度计装置采用最小的封装结构，并且可以将装置保持在便携式模式，同时保持相对较高的精度和可重复性。

公开(公告)号：EP0442738A3

公开(公告)日：1992-01-15

申请号：EP91301205.0

申请日：1991-02-14

Applicant: Hewlett-Packard Company

Inventor： Vincent, Kent D.

IPC: G01J3/51 ,  G02B5/28

CPC classification number: G01J3/51 ,  G01J3/12 ,  G01J3/26 ,  G01J3/2803 ,  G01J3/513 ,  G01J2003/1226 ,  G02B5/284

Abstract: Light filter apparatus for receiving a light beam (25) having wavelengths in a selected band and for dispersing the light into a plurality of rays (30), with each ray having a different wavelength for which the intensity peaks. The peak wavelength varies approximately continuously with displacement of spatial position in a chosen direction along the filter's light-receiving plane. In one embodiment, the filter is a modified etalon structure having at least two reflecting surfaces whose separation distance is not constant but increases or decreases monotonically with distance in a chosen direction in a light-receiving plane of the etalon. Each of these two reflecting surfaces (26,27) may be planar or non-planar but continuous, or may have a step or staircase configuration. This structure may operate using transmitted light or reflected light. In a second embodiment, an edge filter combination is used to produce a narrow band of transmitted or reflected light having a variable central wavelength that varies with position along the chosen direction. In a third embodiment, a multi-layer thin film structure is used to provide a narrow band of transmitted or reflected light having a variable central wavelength. The filter may be combined with a one-dimensional or two-dimensional array of photosensor elements, which array may be linear, circular or generally curvilinear, one such element receiving a group of adjacent light rays of similar peak wavelength, to provide a plurality of different wavelength readings on an incident light beam for spectrophotometry or colorimetry analysis.

公开(公告)号：EP0365310A3

公开(公告)日：1991-09-04

申请号：EP89310724.3

申请日：1989-10-18

Applicant: XEROX CORPORATION

Inventor： Cronshaw, Anthony James, Dr. ,  Cooley, Roderick Arthur

IPC: G01J3/50 ,  H01L27/14 ,  H04N1/46 ,  G03G15/01

CPC classification number: G03G15/5025 ,  G01J3/51 ,  G01J3/513 ,  G01J2001/448 ,  G03G15/01 ,  H04N1/62

Abstract: A colour detection and/or recognition apparatus comprises a twin row array (16) of detector elements, each element being arranged to produce an electrical signal on detection of a given colour. The two rows (21, 22) each comprise a plurality of groups of detector elements, with the elements in each group of at least one of the arrays being sensitive to a respective different colour, with corresponding elements in the two rows being sensitive to different colours, and with the four elements of adjacent corresponding pairs of elements in the two rows being sensitive to at least three different colours. The electrical signals are processed to provide a determination of the detection of colour or the recognition of a colour. The two rows of detector elements, typically photosensitive sites in CCD arrays, may be formed closely adjacent one another on the same semiconductor substrate, together with CCD shift registers (23, 24) along the outide edges of the two rows. A line buffer delay circuit (25) may be provided for the outputs of one of the rows.