75784510
Aug 25, 1999
Aug 7, 2001
OPTICAL MEASURING INSTRUMENTS, NAMELY, MEASUREMENT INSTRUMENTS FOR EVALUATING THE PHOTOMETRIC AND COLORIMETRIC PROPERTIES OF ACTIVE AND PASSIVE ELECTRO-OPTICAL DISPLAYS IN LIQUID CRYSTAL DISPLAYS AND OTHER VISUAL DISPLAY UNITS FOR VIEWING DIRECTION, INTENSITY, LUMINANCE AND CHROMATICITY OF THE DISPLAYS
Electrical and Scientific Apparatus