Brightness colorimeter having measurement error caused by linearly polarized light, which is corrected

    公开(公告)号:US10551301B2

    公开(公告)日:2020-02-04

    申请号:US15588943

    申请日:2017-05-08

    申请人: ANI. Co. Ltd.

    摘要: A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to intersect the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and intersect the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to intersect monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a chromaticity, and an error obtained by the monochromatic light beams.

    Color and luminance measuring device including filter unit

    公开(公告)号:US11422035B2

    公开(公告)日:2022-08-23

    申请号:US17261883

    申请日:2020-12-07

    申请人: ANI. Co. Ltd

    IPC分类号: G01J3/50 G01N21/25 G01N21/66

    摘要: Disclosed is a color and luminance measuring device including a filter unit including a case which covers the entire device and has a light incident part formed on one side thereof through which measured light emitted from an object to be measured is incident, a measurement unit which measures luminance and a color by receiving the measured light in the case, and a filter unit which is disposed on a movement path of the measured light in the case to selectively control the luminance of the measured light transmitted to the measurement unit and transmit the measured light, wherein the filter unit reduces the luminance of the measured light to a predetermined level when the measured light has luminance of a predetermined level or higher and transmits the measured light to the measurement unit.