Contrast Measurement Device Outline This is an epoch-making device to markedly shorten the investigation time, as the contrast inspection of each display (LCD, PDP, PJ etc.) is measured simultaneously for the entire display in high resolution and high speed. This is in marked contrast to conventional one-point measurement luminance meters. Characteristics Contrast ratio   Measured up to 1 : 30,000 Repetition brightness resolution  0.01cd/m2 (at 1cd/m2 measurement) A maximum of 256 points can be measured. Contrast correction values of each measured point can be input Measurement can be controlled and the results can be output using RS 232C Each brightness value and max., min., and average contrast ratios can be determined simultaneously. Original image Processed image Characteristic specification Photo acceptance unit CCD camera Number of measured points* Max. 256 points  (16x16) Measured duration 0.8 sec. Range of contrast ratio* 1:30,000 Measured brightness range* 0.13000 cd/m2 Measurement accuracy Accuracy of brightness measurement (According to PR-650 brightness measurement) Chromaticity accuracy 0.001 Brightness reproducibility Brightness (Y) 1% (According to our reference illuminant) Chromaticity reproducibility Chromaticity (x, y) 0.001 (According to our reference illuminant) Evenness in display Brightness (Y) 1% (According to our reference illuminant) Evenness in chromaticity Chromaticity (x, y) 0.001 (According to our reference illuminant) Repeated brightness accuracy* 0.01 cd/m2(At 1.0 cd/ m2 measurement) Evenness in display :  This term isused when indicating shift from center brightness and chromaticity in all dots in the measurement area. >>Return to LIST
I. System Corporation TEL. 03-3220-0589 FAX. 03-3220-0679 Mailto:info@imaizumi.com
2003 copyright I System Corporation All rights reserved.