PRINT QUALITY MONITORING DEVICE FOR A COLOUR PRINTING PROCESS

    公开(公告)号:US20170197448A1

    公开(公告)日:2017-07-13

    申请号:US15326004

    申请日:2014-07-28

    Abstract: A method and system for performing color print quality monitoring for a color printing process, the method includes determining a calibration distance (ZCAL) between a Spectrophotometer (140) and an associated calibration patch (310) that provides a maximum luminescence value (LMAX) detected by the Spectrophotometer. The Spectrophotometer (140) or patch distance (Z1) between the Spectrophotometer and a color calibration patch (320) printed on a sheet (155) is determined from a first maximum color patch luminescence value (L1). A first color reading of the color calibration patch is taken and a second color patch distance (Z2) between the Spectrophotometer and a different area of the color calibration patch (320) is determined to provide a second maximum color patch luminescence value (L2). A second color reading of the color calibration patch is taken and compared with the first color reading to determine if the printing process needs adjusting.

    MEASUREMENT DEVICE, ELECTRONIC APPARATUS, AND MEASUREMENT METHOD

    公开(公告)号:US20170122807A1

    公开(公告)日:2017-05-04

    申请号:US15292477

    申请日:2016-10-13

    Abstract: A spectroscopic camera includes a wavelength variable interference filter, and an image sensor that receives light which is transmitted through the wavelength variable interference filter. Measurement is implemented a plurality of times by causing measurement light to be incident to the wavelength variable interference filter and changing the wavelength of light that is transmitted by the wavelength variable interference filter. Reflectance based on the intensity of light when a first pixel of the image sensor receives light of a target wavelength, is predicted in the respective plurality of repetitions of measurement on the basis of a light reception central wavelength of light that the first pixel receives, and reflectance that is calculated on the basis of the intensity of light that is received by the first pixel.

    Measuring apparatus, measuring system, and measuring method

    公开(公告)号:US09638575B2

    公开(公告)日:2017-05-02

    申请号:US14293039

    申请日:2014-06-02

    CPC classification number: G01J3/0208 G01J3/465 G01J3/513 G01J3/524

    Abstract: A measuring apparatus and a measuring method are provided. The measuring apparatus includes an optical system to condense light, a light receiving device to receive light condensed by the optical system at a plurality of light receiving positions and convert the light into an electric signal, a plurality of optical band-pass filters arranged near a lens stop of the optical system, each of the optical band-pass filters having a different spectral transmittance, a lens array arranged between the optical system and the light receiving device, the lens array having a plurality of lenses each of which is arranged substantially in parallel with a two-dimensional surface of the light receiving device, and a correction unit to correct the electric signal for each one of the plurality of light receiving positions of the light receiving device. The measuring method is performed by the measuring apparatus.

    SPECTROMETRY DEVICE, IMAGE FORMING APPARATUS, AND SPECTROMETRY METHOD
    178.
    发明申请
    SPECTROMETRY DEVICE, IMAGE FORMING APPARATUS, AND SPECTROMETRY METHOD 审中-公开
    光谱仪器,图像形成装置和光谱方法

    公开(公告)号:US20160282183A1

    公开(公告)日:2016-09-29

    申请号:US15076961

    申请日:2016-03-22

    Abstract: A spectrometry device includes a spectroscope, an extraneous light sensor, and a light intensity controller. The spectroscope includes a light source that emits illumination light to a medium and a wavelength-selective interference filter that performs spectroscopy on light incident from the medium. The extraneous light sensor detects the intensity of extraneous light which is incident on the medium. The light intensity controller controls the intensity of the illumination light emitted from the light source such that the light intensity ratio of the illumination light and the extraneous light is equal to a first value.

    Abstract translation: 分光装置包括分光镜,外来光传感器和光强度控制器。 分光器包括向介质发射照明光的光源和对从介质入射的光进行光谱的波长选择性干涉滤光器。 外部光传感器检测入射在介质上的外来光的强度。 光强度控制器控制从光源发射的照明光的强度,使得照明光和外来光的光强度比等于第一值。

    Color measurement system including lateral moving measurment carriage
    180.
    发明授权
    Color measurement system including lateral moving measurment carriage 有权
    颜色测量系统包括横向移动测量托架

    公开(公告)号:US09234851B2

    公开(公告)日:2016-01-12

    申请号:US14260829

    申请日:2014-04-24

    Abstract: A color measurement system laterally determines chromatic characteristics of a printed substrate. A measurement carriage includes a measurement head for laterally moving across the printed substrate and a measurement magnetic coupler slidably mounts onto a measurement rail positioned on a first side of the printed substrate. A backing carriage includes backing surface(s) and backing magnetic coupler(s). Each backing magnetic coupler is associated with a respective backing surface. Each backing magnetic coupler can be coupled with the measurement magnetic coupler for coupling the measurement carriage with the backing carriage. The backing carriage slidably mounts onto a backing rail positioned on a second opposite side of the printed substrate. The measurement carriage or backing carriage includes a motor for moving across a respective measurement rail or backing rail. Another measurement carriage and backing carriage move across another measurement rail and backing rail by coupling with the first measurement carriage and backing carriage.

    Abstract translation: 颜色测量系统横向确定印刷基板的色彩特性。 测量托架包括用于横向移动穿过印刷基板的测量头和可滑动地安装在位于印刷基板的第一侧上的测量导轨上的测量磁耦合器。 背衬托架包括背衬表面和背衬磁性耦合器。 每个背衬磁性耦合器与相应的背衬表面相关联。 每个背衬磁耦合器可与测量磁耦合器耦合,以将测量托架与背衬托架耦合。 背衬托架可滑动地安装在位于印刷基板的第二相对侧上的背板上。 测量滑架或背板滑架包括用于在相应的测量轨道或背衬轨道上移动的马达。 通过与第一测量托架和背衬托架联接,另一个测量滑架和背板支架通过另一个测量导轨和背衬轨道移动。

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