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1.发明授权公开(公告)号：US11307093B2
公开(公告)日：2022-04-19
申请号：US16986884
申请日：2020-08-06
Applicant: KONICA MINOLTA INC.
Inventor： Yoshiroh Nagai , Toshio Kawano , Takashi Kawasaki
Abstract: Creating a model calibrating spectral apparatus having an optical system that converts light to be measured into a spectrum, and a light-receiving sensor including a plurality of sensors that outputs signals, the sensors include sensors that output signals indicating respective energy amounts of a plurality of wavelength components. The model shows where a linear function of an indicator indicating a mechanical error in the spectral apparatus, expresses deviation of an indicator indicating spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor. The method comprises: a) acquiring reference spectral sensitivity; b) acquiring an indicator indicating the reference spectral sensitivity of the sensor acquired at a); and c) creating the model where the linear function of the mechanical error indicator expresses deviation of the spectral sensitivity indicator from the indicator indicating the reference spectral sensitivity of the sensor, acquired at b).
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Patent Agency Ranking
公开(公告)号：US10302562B2
公开(公告)日：2019-05-28
申请号：US15033733
申请日：2014-09-16
Applicant: KONICA MINOLTA, INC.
Inventor： Toshio Kawano , Yushi Nobumoto
Abstract: In a gloss evaluation method and a gloss evaluation apparatus according to the present invention, an intensity P of specular light obtained by illuminating an object to be measured with illumination light of spectral irradiance emitted from the reference machine is obtained from an intensity of specular light obtained by illuminating the object to be measured with first illumination light of spectral irradiance from a relevant machine, based on an intensity b of dispersed reflected light obtained by illuminating the object to be measured with the first illumination light, and a spectral reflectance of diffuse reflection light obtained by illuminating the object to be measured with predetermined second illumination light from a different illuminating angle.
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公开(公告)号：US10746650B2
公开(公告)日：2020-08-18
申请号：US16301966
申请日：2017-05-24
Applicant: KONICA MINOLTA, INC.
Inventor： Toshio Kawano , Takashi Kawasaki
Abstract: The reflection characteristic measuring device according to the present invention is a device that includes a diffuse reflecting surface and measures a plurality of mutually different types of reflection characteristics by using a plurality of optical systems having mutually different geometries, which corrects the reflection characteristics to be measured by an error generated when light emitted from an object of measurement is reflected from the diffuse reflecting surface and illuminates the object of measurement. The reflection characteristic measuring device according to the present invention is therefore capable of reducing errors resulting from recursive diffused illumination.
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公开(公告)号：US10578546B2
公开(公告)日：2020-03-03
申请号：US16326102
申请日：2017-08-15
Applicant: KONICA MINOLTA, INC.
Inventor： Toshio Kawano
Abstract: A multi-angle optical characteristic measuring device and an optical unit therefor include: an illuminating portion that irradiates a measurement point with an illuminating light beam; a plurality of reflecting mirrors that are arranged facing the measurement point at a plurality of different observation angles, and modify traveling directions of measurement light beams emitted from the measurement point in response to the illuminating light beam; one light receiving optical system that receives the measurement light beams from the plurality of reflecting mirrors; and a two-dimensional detecting portion that detects the measurement light beams received by the light receiving optical system, and the plurality of reflecting mirrors modifies the traveling directions of the measurement light beams such that the two-dimensional detecting portion detects the measurement light beams at different positions on the two-dimensional detecting portion.
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公开(公告)号：US11885680B2
公开(公告)日：2024-01-30
申请号：US17435945
申请日：2020-02-27
Applicant: Konica Minolta, Inc.
Inventor： Toru Nakatani , Toshio Kawano , Hitoshi Nagasawa , Koji Nagai
CPC classification number: G01J3/0275 , G01J3/0229 , G01J3/26
Abstract: A spectral device is provided with: a filter having a property of transmitting light of multiple wavelength ranges from a measurement object; a driving means to slide the filter; and a detector to detect an intensity of the light from the measurement object, the light having passed through the filter, the detector to further measure the intensity of the light multiple times sequentially while the driving means slides the filter and thereby obtain multiple pieces of measured data to be used for a calculation of spectral information.
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6.发明授权公开(公告)号：US10768048B2
公开(公告)日：2020-09-08
申请号：US15746216
申请日：2016-07-06
Applicant: KONICA MINOLTA INC.
Inventor： Yoshiroh Nagai , Toshio Kawano , Takashi Kawasaki
Abstract: Spectral apparatus includes sensors that output signals indicating the respective energy amounts of a plurality of wavelength components. For each of the sensors, its reference spectral sensitivity is acquired, and an indicator indicating the reference spectral sensitivity of the sensor, is acquired. The deviation of an indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is expressed by a linear function of an indicator indicating a mechanical error in the spectral apparatus. The indicator indicating the mechanical error in the spectral apparatus, is acquired to adapt a spectral sensitivity set of sensors to a signal set output by the sensors. For each of the sensors, the deviation of the indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is acquired, so that the spectral sensitivity of the sensor is acquired.
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