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    Tristimulus template-type colorimeter
    191.
    发明授权
    Tristimulus template-type colorimeter 失效
    三刺激模板型色度计

    公开(公告)号：US5900932A

    公开(公告)日：1999-05-04

    申请号：US887423

    申请日：1997-07-02

    Applicant: Giordano Bruno Beretta

    Inventor： Giordano Bruno Beretta

    IPC: G01J3/46 ,  G01J3/51 ,  G01J3/18 ,  G01J3/50

    CPC classification number: G01J3/51 ,  G01J3/0259 ,  G01J3/502 ,  G01J2003/467 ,  G01J3/465

    Abstract: A template-type calorimeter comprising a light-transparent substrate having a diffraction grating on a surface thereof, the diffraction grating being operative to diffract light incident thereon from a spaced-apart aperture into its constituent spectral components. A template is provided on a surface of the substrate and arranged to receive the diffracted spectral components. The template has formed thereon at least three spatial filters, each for selectively transmitting diffracted spectral components in accordance with respective ones of the desired color-matching functions such as the CIE x(.lambda.), y(.lambda.), z(.lambda.) or r(.lambda.), g(.lambda.), b(.lambda.) color-matching functions. The diffraction grating and the template may be mounted on opposite sides of the substrate, or they may be mounted in a laterally spaced-apart relationship on the same side of the substrate, in which case the opposite side of the substrate is coated with a reflective material. Detectors are arranged adjacent and behind each spatial filter to detect the spectral components transmitted by the respective filters, and the entire assembly is mounted in a light-tight housing which houses the aperture and the assembly in the desired spaced-apart relationship.

    Abstract translation: 一种模板型量热计，其包括在其表面上具有衍射光栅的透光基板，所述衍射光栅可操作以将从其间隔开的孔入射的光衍射成其组成光谱分量。 在衬底的表面上提供模板，并设置为接收衍射光谱分量。 模板上形成有至少三个空间滤波器，每个空间滤波器用于根据期望的颜色匹配功能（例如CIE + E，ovs x + EE（λ），+ E，ovs y）中的相应的选择性地传输衍射光谱分量 + EE（λ），+ E，ovs z + EE（λ）或+ E，ovs r + EE（λ），+ E，ovs g + EE（λ），+ E，ovs b + 匹配功能。 衍射光栅和模板可以安装在基板的相对侧上，或者它们可以在基板的相同侧上以横向间隔的关系安装，在这种情况下，基板的相对侧被涂覆有反射 材料。 检测器被布置在每个空间滤波器的相邻和后方，以检测由各个滤光器传输的光谱分量，并且整个组件安装在不透光的壳体中，该外壳以期望的间隔关系容纳孔和组件。

    Spectrophotometry
    192.
    发明授权
    Spectrophotometry 失效
    分光光度法

    公开(公告)号：US5880832A

    公开(公告)日：1999-03-09

    申请号：US808223

    申请日：1997-02-28

    Applicant: Jay M. Eastman ,  James M. Zavislan

    Inventor： Jay M. Eastman ,  James M. Zavislan

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/50

    CPC classification number: G01J3/50 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/502 ,  G01J3/524 ,  G01J2003/2866

    Abstract: A robust spectrophotometer (also known as a color spectrometer or colorimeter) is self contained in a housing which is adapted to be held-held and has all of the electrical, optical and electro optic elements mounted on a board captured within the housing at one end of which light from a sample is restricted to an object area and projected after being dispersed spectrally, as with a reflection grating, to an image area at a photodetector via a lens which has an optical axis and converges the dispersed light at the image area. The dispersive element is mounted on an arm having a pivot laterally offset from the dispersive element's surface where a diverging beam of light from the object area is incident and is deflected to the image area. The geometry is such that the dispersive element may be rotated to a position where the beam is specularly deflected (zeroth order diffraction), and the spectrometer calibrated when the dispersive element is in the specular reflection/deflection position. The path from the object area is approximately perpendicular to the optical axis, and then is folded by mirrors to direct the beam to incidence on the dispersive element, from which the beam is deflected and focused by the lens, the focal length of which is such that the image and object areas are in conjugate relationship. A pivotal foot on the housing having an aperture may be used to facilitate alignment of the sample with the entrance opening to the housing of the spectrophotometer.

    Abstract translation: 坚固的分光光度计（也称为彩色光谱仪或色度计）被容纳在壳体中，该壳体适于被保持并且具有安装在在一端的壳体内捕获的板上的所有电学，光学和电学光学元件 其中来自样品的光被限制在物体区域，并且如通过反射光栅一样在与光学检测器之间的光学检测器上的像面分散之后被投影，通过具有光轴的透镜并将分散的光会聚在图像区域。 分散元件安装在具有横向偏离分散元件表面的枢轴的臂上，其中来自物体区域的发散光束入射并偏转到图像区域。 几何形状使得色散元件可以旋转到光束被镜面偏转的位置（零级衍射），并且当色散元件处于镜面反射/偏转位置时校准光谱仪。 来自物体区域的路径大致垂直于光轴，然后被反射镜折叠以引导光束入射到色散元件上，光束被透镜偏转和聚焦，其焦距等于 图像和对象区域处于共轭关系。 可以使用具有孔的壳体上的枢转脚来促进样品与分光光度计的壳体的入口的对准。

    Electro-optic module especially suitable for use in a spectrophotometer
    193.
    发明授权
    Electro-optic module especially suitable for use in a spectrophotometer 失效
    电光模块特别适用于分光光度计

    公开(公告)号：US5825486A

    公开(公告)日：1998-10-20

    申请号：US831826

    申请日：1997-04-02

    Applicant: James M. Zavislan ,  Jay M. Eastman ,  Robert J. Hutchison

    Inventor： James M. Zavislan ,  Jay M. Eastman ,  Robert J. Hutchison

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/28 ,  G01J3/502 ,  G01J3/524 ,  G01J2003/2866

    Abstract: A spectrophotometer which is highly manufacturable at minimum cost nevertheless provides precision of measurement of spectra components of light which is projected therein by maintaining precise optical alignment of optical and electrical components thereof. These components are mounted in a module which is contained in a housing having an entrance aperture which defines an object area for light the spectrum of which is measured by a photodetector in the module at an image area. The module has a base plate provided by a printed circuit board on which a closed wall encompasses an area (a corral) on one side of the circuit board. The wall is a one piece structure which extends to the vicinity of the edge of the board. It is assembled with the board as a unitary structure so that the assembly is made torsionally rigid and resists bending in the plane of the board. The module may be of sufficiently small size so as to be located in a housing which is hand held, thereby providing a hand-held spectrophotometer.

    Abstract translation: 然而，以最小成本高度可制造的分光光度计提供了通过保持其光学和电气部件的精确光学对准来投射在其中的光的光谱分量的测量的精度。 这些部件安装在一个模块中，该模块包含在具有入射孔的壳体中，该入口孔限定光的对象区域，其光谱由图像区域中的模块中的光电检测器测量。 模块具有由印刷电路板提供的底板，封闭的壁围绕电路板一侧的区域（畜栏）。 该壁是延伸到板的边缘附近的单件结构。 它与板组装成一体的结构，使得组件制成扭转刚性并抵抗板的平面中的弯曲。 模块可以具有足够小的尺寸，以便位于手持的壳体中，从而提供手持式分光光度计。

    Color sensor simulating standard source illuminant
    194.
    发明授权
    Color sensor simulating standard source illuminant 失效
    模拟标准光源的颜色传感器

    公开(公告)号：US5642189A

    公开(公告)日：1997-06-24

    申请号：US489750

    申请日：1995-06-12

    Applicant: Mark J. Alguard

    Inventor： Mark J. Alguard

    IPC: G01J3/10 ,  G01J3/50 ,  G01N21/25 ,  G01N21/86 ,  G01N21/88 ,  G01N21/89 ,  G01N21/892 ,  G01N21/93 ,  G01N21/27 ,  G01N21/64

    CPC classification number: G01J3/50 ,  G01J3/0259 ,  G01J3/10 ,  G01J3/502 ,  G01J3/524 ,  G01N21/255 ,  G01N21/86

    Abstract: Disclosed is an apparatus for measuring on-line the color and color-related properties of a moving sheet. Contrast ratio reflectance measurements are made for providing opacity corrections substantially in real time for a full color spectrum. An optical color sensor in accordance with the invention includes a pair of synchronized spectrometers, the first spectrometer being aligned to view a region of the sheet backed with a highly reflective ("white") material and the second spectrometer being aligned to view a region of the sheet backed with a highly absorptive ("black") material. The use of two spectrometers permits substantially simultaneous "black" and "white" measurements for a full color spectrum. The optical color sensing system further includes two light sources, a flashlamp and a continuously energized tungsten filament lamp. Light beams from the two sources are combined to form a sheet-illuminating third beam approximating the D65 standard source. The intensity of the flashlamp is electronically controlled to maintain the balance of UV to visible light that characterizes the standard source. The color sensor further includes a sheet backing system including a rotatable standard wheel carrying a white standard tile. Provision is made to permit rotation of the standard wheel and to standardize the sensor off-sheet while maintaining isolation of the white standard tile from the paper mill environment. The sheet backing system includes a paper guide plate defining an annular vortex space into which air is introduced from a pressurized source. A low pressure region thereby produced in the vortex space draws the paper sheet toward the guide plate. At the same time, circulating air spirals outwardly from the vortex space to form a thin air film or air bearing between the sheet and the paper guide. Sheet flutter is thereby minimized and damage to the sheet is prevented.

    Abstract translation: 公开了一种用于在线测量移动片材的颜色和颜色相关性质的装置。 对比度反射率测量用于为全色谱实质上实时提供不透明度校正。 根据本发明的光学颜色传感器包括一对同步的光谱仪，第一光谱仪被对准以观察具有高反射（“白”）材料的片材的区域，并且第二光谱仪被对准以观察 该片材具有高吸收性（“黑色”）材料。 使用两个光谱仪可以实现全色同步的“黑色”和“白色”测量。 光学颜色感测系统还包括两个光源，闪光灯和连续通电的钨丝灯。 来自两个源的光束被组合以形成近似D65标准源的片状照明第三光束。 闪光灯的强度是电子控制的，以保持紫外线到可见光的平衡，表征标准源。 该颜色传感器还包括一个片材背衬系统，其包括一个承载白色标准砖的可旋转的标准轮。 规定允许标准轮的旋转并标准化传感器脱模，同时保持白色标准砖与造纸厂环境的隔离。 片材背衬系统包括限定了从加压源引入空气的环形涡流空间的导纸板。 由此在涡流空间中产生的低压区将纸张朝向引导板拉出。 同时，循环空气从涡流空间向外螺旋形成在薄片和导纸板之间形成薄的空气薄膜或空气轴承。 因此，片材颤动最小化并且防止了片材损坏。

    Remote color measurement device
    197.
    发明授权
    Remote color measurement device 失效
    远程颜色测量装置

    公开(公告)号：US4881811A

    公开(公告)日：1989-11-21

    申请号：US156471

    申请日：1988-02-16

    Applicant: John K. O'Brien

    Inventor： John K. O'Brien

    IPC: A61C19/10 ,  G01J3/02 ,  G01J3/08 ,  G01J3/46 ,  G01N21/25

    CPC classification number: G01J3/02 ,  A61C19/10 ,  G01J3/0218 ,  G01J3/0251 ,  G01J3/08 ,  G01J3/46 ,  G01J3/502 ,  G01J3/508 ,  G01J3/524 ,  G01N21/255 ,  G01N2021/4742 ,  G01N2021/4752 ,  G01N2201/065 ,  G01N2201/084

    Abstract: A probe, for use with a spectrophotometer, which senses the reflectance of a sample remote from the spectrophotometer. The probe includes a housing having a probe portion positionable proximate the sample, and an integrating chamber disposed within the probe housing and having a radiation input port, a sample port for passing diffused radiation to the sample and returning reflected radiation from the sample, a reference port, and an exit port to receive radiation reflected from the sample through the sample port. The probe further includes a guide for directing radiation to the radiation input port from a radiation source, and an element, responsive to the exit port and the reference port, for selectively conveying reflected radiation from the sample and the wall of the integrating chamber in the probe to the remote spectrophotometer.

    Abstract translation: 用于分光光度计的探针，用于检测远离分光光度计的样品的反射率。 探针包括具有靠近样品定位的探针部分的壳体和设置在探针壳体内并具有辐射输入端口的积分室，用于将扩散的辐射传递到样品并返回来自样品的反射辐射的采样端口，参考 端口和出口，用于接收从样品通过样品端口反射的辐射。 探头还包括用于将辐射从辐射源引导到辐射输入端口的引导件，以及响应于出口和参考端口的元件，用于选择性地将反射的辐射从样品和积分室的壁传递到 探头到远程分光光度计。

    Measuring elements of closed circuit systems for controlling-correcting the print in offset printing machines
    199.
    发明授权
    Measuring elements of closed circuit systems for controlling-correcting the print in offset printing machines 失效
    闭路系统的测量元件用于控制胶版印刷机中的印刷

    公开(公告)号：US4752892A

    公开(公告)日：1988-06-21

    申请号：US315647

    申请日：1981-10-27

    Applicant: Manuel Julian Lecha

    Inventor： Manuel Julian Lecha

    IPC: B41F33/00 ,  G01J3/20 ,  G01J3/46 ,  G06F15/40

    CPC classification number: B41F33/0045 ,  G01J3/46 ,  G01J3/502 ,  G01J3/20

    Abstract: An improvement in the measuring elements of closed circuit systems for controlling-correcting printing in offset printing machines is provided. The values of measurements are amplified, analogically commutated, converted from analog to digital form, and then microprocessed so as to be compared with standard values established in a memory program provided for each one of the valves controlling the printers block of each one of the printing bodies. A reading is taken decomposed into three variables, each one of which corresponds to one of the three basic colors of the visible spectrum in which the light from the colored stain is diffracted by means of a ROWLAND diffraction grating in which there is reflected the light from optical fibers arranged at 45.degree. angles with respect to the printing paper, and which direct a beam of light on the colored stain. At the point of convergence of each one of the diffracted colors, there is arranged a photo pickup device whose signal is amplified by a logarithmic amplifier and connnected to a digital signal which is sent to a microprocessor for processing.

    Abstract translation: 提供了一种用于胶印机中的控制校正打印的闭路系统的测量元件的改进。 测量的值被放大，类比地换算，从模拟形式转换成数字形式，然后进行微处理，以便与为控制每一个打印的打印机块的每个阀提供的存储器程序中建立的标准值进行比较 身体。 读取被分解为三个变量，每个变量对应于可见光谱的三种基本颜色之一，其中来自着色染色体的光通过ROWLAND衍射光栅衍射，其中反射来自 相对于打印纸布置成45度角的光纤，并且在彩色污渍上引导光束。 在每个衍射颜色的会聚点处，布置有一个光拾取装置，其信号由对数放大器放大并连接到被发送到微处理器进行处理的数字信号。

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