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.

公开(公告)号：EP0442738A2

公开(公告)日：1991-08-21

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.

Abstract translation: 一种滤光器装置，用于接收具有选定频带波长的光束（25），并用于将光分散到多个光线（30）中，每个光线具有不同的波长，强度达到峰值。 峰值波长沿着滤光器的光接收平面沿选定方向的空间位置位移大致连续变化。 在一个实施例中，滤光器是具有至少两个反射表面的修正的标准具结构，其分离距离不是恒定的，而是在标准具的光接收平面中沿所选方向的距离单调地增加或减小。 这两个反射表面（26,27）中的每一个可以是平面的或非平面的但连续的，或者可以具有台阶或阶梯构造。 该结构可以使用透射光或反射光进行操作。 在第二实施例中，使用边缘滤波器组合来产生具有随所选方向的位置变化的可变中心波长的透射或反射光的窄带。 在第三实施例中，使用多层薄膜结构来提供具有可变中心波长的透射或反射光的窄带。 滤光器可以与光敏元件的一维或二维阵列组合，该阵列可以是线性的，圆形的或大致曲线的，一个这样的元件接收一组相似的峰值波长的相邻光线，以提供多个 用于分光光度法或比色法分析的入射光束上的不同波长读数。

公开(公告)号：EP0224994A2

公开(公告)日：1987-06-10

申请号：EP86306846.6

申请日：1986-09-04

Applicant: THE UNIVERSITY OF LIVERPOOL

Inventor： Jones, Gordon Rees ,  Moruzzi, James Lodovico ,  Prasad, Akkanapragada Narayana

IPC: G01J3/51 ,  G01J3/50 ,  G01D5/26

CPC classification number: G01D5/34 ,  G01J3/46 ,  G01J3/465 ,  G01J3/513

Abstract: A colour detection system for identifying the colour of incident light, comprises at least two discrete colour detectors (35,36) which have respective response characteristics such that the output signals X, Y ... of the detectors correspond respectively to X = ∫P(λ) x (λ)dλ, Y = ∫P(λ) y (λ)dλ ..., where P(λ) is the spectral power distribution at wavelengthx and x (X), y (λ) .. are colour matching functions corresponding to the respective response characteristics of the detectors, and means (37,38,39) for analogue manipulation of X, Y ... to enable the values of x and y in the Chromaticity Diagram corresponding to the incident colour to be calculated.

Abstract translation: 用于识别入射光的颜色的颜色检测系统，包括至少两个分立的色检测器（35,36），其具有respectivement响应特性检查那样的输出信号X，Y ......的探测器分别对应于X =内装P （拉姆达）@（拉姆达）δ拉姆达，Y = INTEGRAL P（拉姆达）@（拉姆达）δ拉姆达...，其中P（拉姆达）是在波长为λ和光谱功率分布@（拉姆达），@（拉姆达） ..是颜色匹配函数相对应的检测器的响应respectivement特性，以及装置（37,38,39），用于x的模拟操控，Y ...，以使x和y的值在色度图对应于 要计算事件的颜色。

公开(公告)号：EP0011377A1

公开(公告)日：1980-05-28

申请号：EP79302186.6

申请日：1979-10-11

Applicant: Tobias, Philip Emanuel

Inventor： Tobias, Philip Emanuel

IPC: G01J3/46 ,  G01N21/55

CPC classification number: G01J3/51 ,  G01J3/513

Abstract: An optical densitometer head adapted for application to automatic equipment, and not requiring manual adjustment of filters, comprises a housing (11) including a light source (13), a lens system (15,17) and three photo-electric devices (29,33), each with its own colour filter (25,27). Infra-red filters may be included. The outputs from the devices may be applied to a three-channel amplifier (37) with a characteristic so as to give outputs corresponding to the densities of the three primary colours. The devices may be symmetrically disposed in the housing, and an inspection aperture, normally closed by a plug (not in Figure 1) may be provided.

Abstract translation: 一种适于应用于自动设备而不需要手动调节滤光器的光密度计头部包括：壳体（11），包括光源（13），透镜系统（15,17）和三个光电装置（29， 33），每个都有自己的滤色镜（25,27）。 可能包括红外线过滤器。 来自装置的输出可以被施加到具有特性的三通道放大器（37），以便给出与三原色的密度相对应的输出。 这些装置可以对称地设置在壳体中，并且可以提供通常由插头闭合的检查孔。

公开(公告)号：EP2776797B1

公开(公告)日：2018-12-05

申请号：EP12788152.2

申请日：2012-10-30

Applicant: IMEC VZW

Inventor： GEELEN, Bert ,  LAMBRECHTS, Andy ,  TACK, Nicolaas

IPC: G01J3/28 ,  G01J3/51 ,  G01J3/02 ,  H01L27/146

CPC classification number: G01J3/2803 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0235 ,  G01J3/0264 ,  G01J3/2823 ,  G01J3/513 ,  Y10T29/49826

Abstract: A spectral camera having an objective lens, an array of lenses for producing optical copies of segments of the image, an array of filters for the different optical channels and having an interleaved spatial pattern, and a sensor array to detect the copies of the image segments is disclosed. Further, detected segment copies of spatially adjacent optical channels have different passbands and represent overlapping segments of the image, and detected segment copies of the same passband on spatially non-adjacent optical channels represent adjacent segments of the image which fit together. Having segments of the image copied can help enable better optical quality for a given cost. Having an interleaved pattern of the filter bands with overlapping segments enables each point of the image to be sensed at different bands to obtain the spectral output for many bands simultaneously to provide better temporal resolution.

公开(公告)号：EP2284509B1

公开(公告)日：2018-01-31

申请号：EP10012854.5

申请日：2006-11-02

Applicant: Themelis, George

Inventor： Themelis, George

IPC: G01J3/36 ,  G01J3/28 ,  G06T1/00 ,  G01J3/51

CPC classification number: G01J3/2823 ,  G01J3/36 ,  G01J3/51 ,  G01J3/513 ,  G01J2003/1213 ,  G01J2003/2806 ,  G01J2003/2826

Abstract: Apparatus and method for multispectral imaging of an object (180). The apparatus comprises a multispectral light source adapted to transmit multispectral light (174,176) having a plurality of first discrete spectral bands toward the object, wherein the light source is adapted to excite emission of fluorescent light (178c) from the object; and a multispectral imaging system adapted to receive light from the object, wherein the light comprises a reflected light component (178a) in accordance with the transmitted light, wherein the reflected light component has the plurality of first discrete spectral bands, and a fluorescent light component (178c). The imaging system is adapted to measure the intensity of a combination of the received reflected light component and the received fluorescent light component at the plurality of first discrete spectral bands, and the intensity of the received fluorescent light at one or more second discrete spectral bands, which are not aligned with the plurality of first discrete spectral bands. The multispectral imaging system comprises a processor adapted to separate the intensity of the received reflected light component and the intensity of the received fluorescent light component based on the intensities measured at the plurality of first discrete spectral bands and the one or more second discrete spectral bands, and to generate one or more reflected light spectral images from the separated intensity of the reflected light component and/or one or more fluorescent light spectral images from the separated intensity of the fluorescent light component.