Densitometer method and system for identifying and analyzing printed targets
    2.
    发明公开
    Densitometer method and system for identifying and analyzing printed targets 失效
    用于识别和分析印刷目标的密度计方法和系统

    公开(公告)号:EP0283899A3

    公开(公告)日:1991-01-23

    申请号:EP88104044.8

    申请日:1988-03-15

    Abstract: A hand-held battery operated densitometer for identi­fying and analyzing printed targets (12) is provided which automatically determines whether an unprinted sub­strate, a solid black, a muddy magenta solid, an over­print, a solid color, or a halftone has been detected. Referenced density values measured through red, green, blue and visual optical filters (20a-d) for an overprint and the first and second down colors are used to determine and display percent trap. Referenced density values for halftone and corresponding solid targets are used to determine and display percent dot area. Referenced density values for solid targets may also be displayed. The printing process is adjusted based upon the dis­played solid densities, percent trap and percent dot area.

    Remote reading spectrophotometer
    4.
    发明公开
    Remote reading spectrophotometer 失效
    远程读取分光光度计

    公开(公告)号:EP0242725A3

    公开(公告)日:1989-10-11

    申请号:EP87105293.2

    申请日:1987-04-09

    Abstract: A remote reading spectrophotometer (10) is provided having the capability to accurately measure spectral reflectance at relatively long sample distances. A first illumination optics arrangement (14) assures uniform illumination to a portion of the sample and a second optical means (20) focuses the reflected image of part of the illuminated sample onto a poly­chromator (22). Reference beam means are provided so that the polychromator sequentially measures the spectral characteristics of the reference beam and the sample. Continuous monitoring of the illumination at select wavelengths provides illumination normal­ization data so that a microprocessor (40) can normalize the illumination and compare the reference beam and sample measurements to accurately determine the spectral reflectance characteristics of the sample. Angular and raster scanning capability is also provided.

    Remote reading spectrophotometer
    5.
    发明公开
    Remote reading spectrophotometer 失效
    SpektrophotometerfürFernablesung。

    公开(公告)号:EP0242725A2

    公开(公告)日:1987-10-28

    申请号:EP87105293.2

    申请日:1987-04-09

    Abstract: A remote reading spectrophotometer (10) is provided having the capability to accurately measure spectral reflectance at relatively long sample distances. A first illumination optics arrangement (14) assures uniform illumination to a portion of the sample and a second optical means (20) focuses the reflected image of part of the illuminated sample onto a poly­chromator (22). Reference beam means are provided so that the polychromator sequentially measures the spectral characteristics of the reference beam and the sample. Continuous monitoring of the illumination at select wavelengths provides illumination normal­ization data so that a microprocessor (40) can normalize the illumination and compare the reference beam and sample measurements to accurately determine the spectral reflectance characteristics of the sample. Angular and raster scanning capability is also provided.

    Abstract translation: 提供远程读取分光光度计(10),其具有在相对长的采样距离处精确地测量光谱反射率的能力。 第一照明光学装置(14)确保对样品的一部分的均匀照明,并且第二光学装置(20)将被照射样品的一部分的反射图像聚焦到多色淀粉(22)上。 提供参考光束装置,使得多色板顺序地测量参考光束和样品的光谱特性。 对选定波长的照明的连续监测提供照明归一化数据,使得微处理器(40)可以对照明进行归一化并比较参考光束和样品测量值,以精确地确定样品的光谱反射特性。 还提供角度和光栅扫描功能。

    Densitometer method and system for identifying and analyzing printed targets
    7.
    发明公开
    Densitometer method and system for identifying and analyzing printed targets 失效
    Farbdichtemessverfahren bzw. 系统zur识别和分析gedruckter Vorlagen。

    公开(公告)号:EP0283899A2

    公开(公告)日:1988-09-28

    申请号:EP88104044.8

    申请日:1988-03-15

    Abstract: A hand-held battery operated densitometer for identi­fying and analyzing printed targets (12) is provided which automatically determines whether an unprinted sub­strate, a solid black, a muddy magenta solid, an over­print, a solid color, or a halftone has been detected. Referenced density values measured through red, green, blue and visual optical filters (20a-d) for an overprint and the first and second down colors are used to determine and display percent trap. Referenced density values for halftone and corresponding solid targets are used to determine and display percent dot area. Referenced density values for solid targets may also be displayed. The printing process is adjusted based upon the dis­played solid densities, percent trap and percent dot area.

    Abstract translation: 提供用于识别和分析印刷目标(12)的手持电池操作的密度计,其自动地确定是否已经检测到未印刷的基材,固体黑色,泥泞的品红色固体,套印,纯色或半色调。 通过红色,绿色,蓝色和可视光学滤光片(20a-d)测量的参考浓度值用于叠印和第一和第二降色用于确定和显示百分比陷阱。 半色调和相应固体目标的参考浓度值用于确定和显示点面积百分比。 也可以显示固体目标的参考密度值。 基于所显示的固体密度,百分比陷阱和百分比点面积来调整印刷过程。

    Dual reading head transmission/reflection densitometer
    8.
    发明公开
    Dual reading head transmission/reflection densitometer 失效
    传输/反射敏感度计

    公开(公告)号:EP0391037A1

    公开(公告)日:1990-10-10

    申请号:EP90102604.7

    申请日:1990-02-09

    CPC classification number: G01N21/474 G01N21/5907

    Abstract: A dual reading head transmission/reflection densitometer is disclosed offering superior performance and reduced manufacturing costs. The instrument employs two separate measuring heads (1, 3), each containing its own collection optical system mounted in a single swing arm. Reflected or transmitted light is transmitted from the appropri­ate measuring head through fiber optic leads (6, 17) to a bifurcated fiber bundle (38) and then to the photodetector assembly (47).

    Abstract translation: 公开了一种双读头透射/反射光密度计,其提供优异的性能和降低的制造成本。 仪器采用两个单独的测量头(1,3),每个测量头都包含安装在单个摆臂中的自己的收集光学系统。 反射或透射光从适当的测量头通过光纤引线(6,17)传输到分叉的光纤束(38),然后传输到光电检测器组件(47)。

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