公开(公告)号：US10408681B2

公开(公告)日：2019-09-10

申请号：US15571376

申请日：2016-04-13

Applicant: KONICA MINOLTA, INC.

Inventor： Yoshiroh Nagai

IPC: G01J3/50 ,  G01N21/55 ,  G01J3/52

Abstract: In order to provide a technique by which a highly-accurate conversion rule of measurement values between different spectrocolorimetric devices can be easily set, the spectrocolorimetric device includes a light source, a light-receiving unit, and a conversion unit. The light-receiving unit spectroscopically disperses reflected light generated on a surface of an object according to irradiation of the object with illumination light emitted from the light source and measures a spectroscopic spectrum of the reflected light. The conversion unit calculates a spectral reflectance that can be acquired by another spectrocolorimetric device from the spectroscopic spectrum by using a calibrated spectral sensitivity of the other spectrocolorimetric device different from the spectrocolorimetric device and the spectroscopic spectrum.

公开(公告)号：US09671289B2

公开(公告)日：2017-06-06

申请号：US15307392

申请日：2015-04-14

Applicant: Konica Minolta, Inc.

Inventor： Yoshiroh Nagai

IPC: G01J3/52 ,  G01J3/50

CPC classification number: G01J3/52 ,  G01J3/027 ,  G01J3/50

Abstract: In this color measurement device and method, an entire image and a partial image of a color chart are acquired, respectively, during conveyance of the color chart by a conveyance unit and during re-conveyance of the color chart by the conveyance unit, and an amount of positional deviation of the color chart occurring between the conveyance and the re-conveyance is derived based on the acquired entire and partial images. Then, a color of each of a plurality of patches of the color chart is measured by a color measuring unit, while a measurement position of the color measuring unit is corrected according to the derived positional deviation amount.