SPECTROPHOTOMETER AND IMAGE FORMING DEVICE

To improve color measurement accuracy while suppressing increase in color measurement time.SOLUTION: Provided are: an LED 3; a diffraction grating 53; a line sensor 54 having a plurality of pixels, receiving light separated by the diffraction grating 53 for each wavelength of light separated by the...

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Bibliographic Details
Main Author FURUKAWA HITOSHI
Format Patent
LanguageEnglish
Japanese
Published 27.06.2019
Subjects
CINEMATOGRAPHY
COLORIMETRY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MAGNETOGRAPHY
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
PHOTOGRAPHY
PHYSICS
RADIATION PYROMETRY
TESTING
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Summary:To improve color measurement accuracy while suppressing increase in color measurement time.SOLUTION: Provided are: an LED 3; a diffraction grating 53; a line sensor 54 having a plurality of pixels, receiving light separated by the diffraction grating 53 for each wavelength of light separated by the plurality of pixels, and outputting a voltage according to the intensity of the received light; and a sensor CPU 60 for determining the spectral reflectance of an object based on the intensity of light reflected from the object. The sensor CPU 60 varies the number of times of detection for detecting the object in each pixel according to a plurality of pixels (S102, S105 to S107).SELECTED DRAWING: Figure 4 【課題】測色時間の増加を抑制しつつ、測色精度を向上させること。【解決手段】ＬＥＤ３と、回折格子５３と、複数の画素を有し、回折格子５３により分光された光を複数の画素によって分光された光の波長毎に受光し、受光した光の強度に応じた電圧を出力するラインセンサ５４と、対象物から反射された光の強度に基づいて対象物の分光反射率を求めるセンサＣＰＵ６０と、を備え、センサＣＰＵ６０は、複数の画素に応じて各画素における対象物を検出する検出回数を異ならせる（Ｓ１０２、Ｓ１０５〜Ｓ１０７）。【選択図】図４
Bibliography:Application Number: JP20170236512