发明名称 INDICATION CHARACTERISTIC MEASURING DEVICE
摘要 PROBLEM TO BE SOLVED: To realize an indication characteristics measuring device capable of efficiently measuring chromaticity, brightness, contrast and flicker as important administrative items in a control and inspection process of products using a liquid crystal display, for example, with one measuring apparatus. SOLUTION: The indication characteristics measuring device includes at least a photoelectric conversion means converting the quantity of light generated by a measuring object to electric signal, an amplifying means for amplifying the output signal of the photoelectric conversion means, a direct current component detection means for detecting the signal of direct current component out of the output of the amplifying means, an alternating current component detection means for detecting the signal of specific frequency component out of the output of the amplifying means and an indication means for indicating the direct current component detection signal and the alternating current component detection signal.
申请公布号 JP2002122513(A) 申请公布日期 2002.04.26
申请号 JP20000317466 申请日期 2000.10.18
申请人 YOKOGAWA ELECTRIC CORP 发明人 TSUNEOKA TAKASHI;TAKAYANAGI YOSHINARI;SENDA NAOMICHI;AIZAWA SHINJI
分类号 G01J3/51;G01M11/00;G02F1/13;(IPC1-7):G01M11/00 主分类号 G01J3/51
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