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1.发明公开Method of measuring color difference between a sample and a standard dyestuff 失效测量样品和标准测试之间的颜色差异的方法
公开(公告)号：EP0128633A3
公开(公告)日：1986-01-08
申请号：EP84300817
申请日：1984-02-09
CPC分类号： G01J3/46 , G01J3/462 , G01J3/463 , G01J3/465 , G01J2003/466
摘要： Absorbance or transmittance properties of a plurality of quantitatively analysed representative sample solutions are measured. One of the representative samples is selected as a standard sample and, from the absorbance or transmittance properties, values representing known differences between both hue and brightness of the standard sample and each other representative sample are derived. Absorbance or transmittance properties of a sample dyestuff solution to be tested are then measured and respective values representing the respective differences between both the hue and brightness of the tested sample and the standard sample are derived and compared with the previously derived values representing the known said differences to thereby measure the color difference. Dyeings of the representative samples of known color and hue may be made and the color and hue of the resulting dyeings measured so that by determining the abovemen- tioned differences of color and hue for a given sample to be tested the color and hue of a dyeing thereof may be accurately predicted.
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公开(公告)号：EP0132342A3
公开(公告)日：1986-06-04
申请号：EP84304682
申请日：1984-07-09
发明人： Aughton, John Edward
CPC分类号： G01J3/14 , G01J3/46 , G01J3/501 , G01J2003/1278
摘要： @ A method and apparatus for controlling the spectral components of a light beam are described. The apparatus comprises means (3-7) for generating a collimated light beam; means (9) for dispersing the collimated beam; a mask (1) including an aperture (2) the size of which is such that a portion of the dispersed beam passes through the aperture in use; and movement means (not shown) for causing relative transverse movement between the light beam and the aperture. A memory (not shown) is provided for storing in use a profile of the relative transverse movement between the light beam and the aperture (2) required to obtain a desired spectral response in the transmitted light beam, the movement means being responsive to the stored profile to cause relative transverse movement in accordance with the predetermined profile.
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公开(公告)号：EP0109686A3
公开(公告)日：1985-12-11
申请号：EP83111612
申请日：1983-11-21
申请人： Hitachi Maxell Ltd.
IPC分类号： G01N21/55 , G01J03/46 , B07C05/342 , H01L33/00
CPC分类号： G01J3/02 , G01J3/0218 , G01J3/50 , G01J3/501 , G01J2003/466 , G01N21/314 , G01N2201/0696 , G01N2201/08
摘要： A color sensor comprising a plurality of light emitting sources of different colors each of which is drived in a time divisional manner to emit the different colors sequentially, a light receiving element for receiving the light from an object illuminated by the respective color lights from the light emitting sources and a circuit arrangement for producing output signals representing the color of the object.
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公开(公告)号：EP0114515A3
公开(公告)日：1985-01-09
申请号：EP83307879
申请日：1983-12-22
发明人： Nguyen, Dinh Thong
IPC分类号： G01J03/46
摘要： Apparatus for recognising colour is provided which comprises receiving means preferably in the form of an optical probe (1) to receive the visual image of a colour, analyse the image into its primary colour constituents and give electrical outputs representing the type and quantum of each primary colour. The apparatus further includes processing means (2) to convert electrical outputs into codes, and comparing the information with data in memory to determine the colour of the image. The apparatus preferably includes a vocalised output.
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公开(公告)号：EP0181228A3
公开(公告)日：1987-08-26
申请号：EP85308126
申请日：1985-11-07
申请人： MEASUREX CORPORATION
发明人： Alguard, Mark J.
CPC分类号： G01J3/50 , G01J3/1838 , G01J3/502 , G01J2001/4242 , G01J2003/468 , G01N21/4738 , G01N21/64 , G01N21/86
摘要： An improved color sensor is provided having two sources of illumination, one source being modulated on and off while the other source remains on. Data taken while the modulated source is on is compared with data taken while the modulated source is off to compute the effective fluorescence of the sample. A corrected color spectrum can then be determined for a defined source.
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公开(公告)号：EP0136542A3
公开(公告)日：1987-07-22
申请号：EP84110310
申请日：1984-08-30
发明人： Benoit, Albert J. , Boden, Dudley M. , Decker, David G. , Kishner, Stanley J. , Van Arsdell, Robert D.
CPC分类号： B41F33/0036 , G01J3/46 , G01J3/51
摘要： In a multi-color printing process, measurements of the optical density of two different three-color halftone control areas are used to calculate dot gain and solid density of the cyan, magenta and yellow images. Since no single-color solid control targets are used, control targets may be hidden or camouflaged in a border or logo in the final printed product. The two control targets can consist of light and dark near-neutral gray balance targets. Alternatively, two different three-color half-tone regions of the printed image can be used as control areas, eliminating the need for separate control targets. Densitometers having blue, green and red filters use the two three-color halftone control areas to provide density measurements which are used by a computer to calculate the densities of cyan, magenta and yellow halftone images. The computer then calculates the dot gain and solid density of the process inks, which are displayed to a pressman who can make appropriate adjustments to the printing process.
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公开(公告)号：EP0149231A3
公开(公告)日：1987-05-20
申请号：EP84116206
申请日：1984-12-22
申请人： HONEYWELL INC.
IPC分类号： G01J03/46
CPC分类号： G01J3/46
摘要： For inspecting objects with respect to their color the chroma information is separated from a composite video color signal; and said chroma information is transformed into an analog voltage having distinguishable levels uniquely representative of distinguishable hues of the composite signal.
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公开(公告)号：EP0204547A3
公开(公告)日：1988-06-08
申请号：EP86304222
申请日：1986-06-03
发明人： Coatney, Charles W.
IPC分类号： G01N21/47 , G01N21/55 , G01J03/50 , G01J03/46 , B07C05/342
CPC分类号： G01J3/02 , B07C5/342 , G01J3/0278 , G01J3/0291 , G01N2021/845 , G01N2201/12723
摘要： A color detecting device comprising a head (14) supported on an arm (30) for oscillatory motion over the product (11) being color measured to render a signal responsive to the average color of the product. A height detector (44) provides a signal indicating the distance between the product and head and is used to modify the color signal accordingly. Atempera- ture sensor (39) in the head indicates an overtemperature condition for causing movement of the head away from the product. The screen (17) transparency is measured by the indicator (47, 48) to indicate when the screen is dirty.
摘要翻译： 一种颜色检测装置，包括支撑在臂（30）上的用于在产品（11）上进行振荡运动的头（14），其被颜色测量以呈现响应于产品的平均颜色的信号。 高度检测器（44）提供指示产品和头部之间的距离的信号，并且用于相应地修改颜色信号。 头部中的温度传感器（39）表示使头部远离产品的运动的过热状态。 屏幕（17）的透明度由指示器（47,48）测量，以指示屏幕何时变脏。
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公开(公告)号：EP0182496A3
公开(公告)日：1987-12-09
申请号：EP85307425
申请日：1985-10-15
CPC分类号： G01J3/46 , G01J3/462 , G01J2003/467
摘要： A method is disclosed to separate the effect of the ambient lighting from the effects of surface reflectance to better analyse the surface properties of materials. The method uses the data sensed by a plurality of sensor classes to define a finite dimensional approximation of a surface reflectance function at each image point, and a finite dimensional approximation of the ambient light.
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公开(公告)号：EP0106135A3
公开(公告)日：1986-01-02
申请号：EP83108901
申请日：1983-09-09
CPC分类号： G01J3/50 , G01J2003/466 , G01N21/4738 , G01N2021/4742 , G01N2201/127
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