Color synthesizing
    181.
    发明授权
    Color synthesizing 失效
    彩色合成

    公开(公告)号:US4290699A

    公开(公告)日:1981-09-22

    申请号:US026928

    申请日:1979-04-04

    Abstract: Color is synthesized by dispersing a beam of light to form a spectrum, effectively blocking a portion of the spectrum with a mask, and recombining the light energies of the unblocked portion(s) of the spectrum to synthesize the color.

    Abstract translation: 通过分散光束以形成光谱,用掩模有效地阻挡光谱的一部分,并重新组合光谱的未阻挡部分的光能以合成颜色来合成颜色。

    Colorimeter employing primary filter mirrors
    182.
    发明授权
    Colorimeter employing primary filter mirrors 失效
    使用初级过滤镜的比色计

    公开(公告)号:US4150898A

    公开(公告)日:1979-04-24

    申请号:US829460

    申请日:1977-08-31

    Applicant: Shigeru Suga

    Inventor: Shigeru Suga

    CPC classification number: G01J3/10 G01J3/0251 G01J3/51 G01J3/465

    Abstract: In a colorimeter including a light source, a first quantity of light is directed toward a color sample and from the color sample toward a single photoelectric receiving and measuring device which is capable of measuring amounts of primaries or tristimulus values in quantities of light. A first carriage has mounted thereon an X primary filter, a Y primary filter and a Z primary filter, and such first carriage is reciprocable so that a selected primary filter may be positioned in front of the single photoelectric device. Adjacent the light source is mounted a second carriage which supports thereon an X primary filter mirror, a Y primary filter mirror and a Z primary filter mirror. The second carriage is reciprocable to position adjacent the light source a selected primary filter mirror corresponding to that primary filter positioned adjacent the photoelectric device. A second quantity of light from the light source is directed toward the selected primary filter mirror which reflects and changes the spectral characteristics of the second quantity of light. This second quantity of light is then directed toward the color sample and through the selected primary filter to the photoelectric device. Thus, the photoelectric device simultaneously receives two quantities of light and measures a resultant amount of the selected primary or tristimulus value therefrom.

    Abstract translation: 在包括光源的色度计中,第一光量朝向彩色样本,并从彩色样本朝向能够测量光量的初级或三色值的单个光电接收和测量装置。 第一托架上安装有X一次过滤器,Y一次过滤器和Z一次过滤器,并且这样的第一托架可往复运动,使得所选择的一次过滤器可以位于单个光电器件的前面。 安装有邻近光源的第二支架,其上支撑有X一次过滤镜,Y一次过滤镜和Z一次过滤镜。 第二滑架可往复运动以使光源邻近定位在与光电装置相邻的初级滤光器对应的选定的一次滤光镜上。 来自光源的第二数量的光指向所选择的一次滤光镜,该反射镜反射并改变第二光量的光谱特性。 然后将第二数量的光引导到彩色样本并通过所选择的一次滤光器指向光电装置。 因此,光电装置同时接收两量光,并测量所选择的初级或三色值的合成量。

    Method and apparatus for color spectrophotometry
    183.
    发明授权
    Method and apparatus for color spectrophotometry 失效
    彩色分光光度法的方法和装置

    公开(公告)号:US3874799A

    公开(公告)日:1975-04-01

    申请号:US36609073

    申请日:1973-06-01

    Abstract: Reflectance measurements of a color sample are made by employing a diffusing sphere having target ports for a color sample, a white standard and a black body. A mirror is mounted within the sphere for pivotal motion about the axis of an exit port to sequentially reflect light from the several targets along a common optical path into a polychrometer which disperses the received light into its spectrum and projects the spectra upon a sensor surface. The sensor may be in the form of an array of light-sensitive elements or the face of an image tube that is scanned or sampled at selected wave lengths of points of the spectrum to be employed in the reflectance measurement. For each sample point, the intensity of light reflected from the black body is subtracted from the intensity of light reflected from the sample and is also subtracted from the intensity of light reflected from the white standard to thereby correct both the sample and white standard measurement for both electrical and other noise of the system, and for stray light within the optical path that impinges upon the sensor surface. The ratios of intensities of the sample to the standard provide reflectance values that may be employed in various color measurements, including calculations of tristimulus values and chromaticity coordinates.

    Abstract translation: 通过使用具有用于颜色样本,白色标准和黑体的目标端口的漫射球来进行颜色样本的反射率测量。 镜子安装在球体内,用于围绕出口的轴线枢转运动,以将来自多个目标的光沿着共同的光路顺序地反射到多光谱仪中,该光谱仪将接收的光分散到其光谱中并将光谱投影到传感器表面上。 传感器可以是光敏元件阵列的形式或者在反射率测量中要采用的频谱的所选波长的长度被扫描或采样的图像管的面。 对于每个采样点,从从样品反射的光的强度中减去从黑体反射的光的强度,并从白色标准反射的光的强度中减去,从而校正样本和白色标准测量 系统的电气和其他噪声,以及撞击传感器表面的光路内的杂散光。 样品的强度与标准的比率提供可用于各种颜色测量中的反射率值,包括三刺激值和色度坐标的计算。

    Dual-optical-path spectrophotometer and color measurement method thereof

    公开(公告)号:US11815396B2

    公开(公告)日:2023-11-14

    申请号:US17700476

    申请日:2022-03-21

    Abstract: Disclosed are a dual-optical-path spectrophotometer and a color measurement method thereof. The spectrophotometer includes an integrating sphere, a light source, and a sensor. A second shutter, a semi-reflecting and semi-transmitting device and lenses are arranged between the detection hole and the sensor, and a light guide device and a first shutter are arranged between a light guide hole formed in the integrating sphere and the semi-reflecting and semi-transmitting device. The color measurement method includes the following steps. A first shutter is closed, a second shutter is opened, light, reflected by the measuring opening, enters a sensor and the sensor measures a spectral reflected signal of the object surface. The first shutter is opened, the second shutter is closed, reflected light enters the sensor, and the sensor measures a spectral reflected signal of a light source. A final sampled signal is calculated.

    Colour recipe calculating method for matt colour standards

    公开(公告)号:US09874476B2

    公开(公告)日:2018-01-23

    申请号:US14360926

    申请日:2012-11-14

    Abstract: The invention relates to a method for colour recipe calculation for matt colour standards with the steps: A) experimentally determining reflection spectra R(exp) of the color standard, comprising a first reflection spectrum (SPIN) and a second reflection spectrum (SPEX), with an integrating sphere color measurement instrument, wherein said first reflection spectrum (SPIN) is obtained at (A1) d/8°—geometry with the specular component included, and said second reflection spectrum (SPEX) is obtained at (A2) d/8°—geometry with the specular component excluded; B1) calculating a recipe for the matt color standard based on the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, or B2) comparing the experimentally determined reflection spectrum R(exp) with the specular component included, which has been corrected for the specular component, with reflection spectra associated to color recipes of a color recipe database for glossy color shades and identifying from said color recipe database a stored reflection spectrum which comes closest to the experimentally determined reflection spectrum R(exp) of the matt color standard, as well as the associated colour recipe; C) converting reflection spectra data of the experimentally determined reflection spectra (SPIN, SPEX) of the matt colour standard to gloss values, and D) converting the gloss values obtained to the amount of matting agent (MAA) with the assistance of previously prepared calibration curves for the available colorant system.

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