CHROMATICITY DATA (circa 1990) Charles Poynton poynton@poynton.com Original NTSC/FCC (circa 1953, NO LONGER IN USE!): x y R .67 .34 G .21 .71 B .14 .08 W .310 .316 (CIE Illuminant C, 6800 K) gamma light=volts^2.2 luma .299 R'+.587 G'+.114 B' SMPTE RP145/Conrac "C" (current 525/60 broadcast television practice), also SMPTE 240M 1125/60 HDTV and European HDTV proposals: x y R .630 .340 +-.005 G .310 .595 +-.005 B .155 .070 +-.005 W .3127 .3291 (CIE D65, 6504 K) gamma light=[volts*4,((volts+0.1115)/1.1115)^(1/0.45)] luma .212 R'+.701 G'+.087 B' EBU (current 625/50 broadcast television practice): x y R .640 .330 G .290 .600 B .150 .060 W .3127 .3291 (CIE D65, 6504 K) gamma light=volts^2.8 luma .299 R'+.587 G'+.114 B' [does not to match chromaticities] Hitachi 19 in (Hitachi HM-4119 manual) [P22 phosphors]: x y tol persistance R .610 .342 +-.016 1.2 ms G .298 .588 +-.016 300 us B .151 .064 +-.016 250 us W .313 .329 +-.016 (6550 K +7 MPCD) gamma unspecified, typical 2.5? Sony 16 in (GDM-1601/1602), 19 in (Sony GDM-1950); unpublished data: x y tol persistance R .625 .340 +-.030 1 ms G .280 .595 +-.030 40 us B .155 .070 +-.016 30 us W .283 .298 +-.030 (9300 K +8 MPCD) gamma unspecified, typical 2.5? Mitsubishi 21 in: x y tol persistance R .618 .350 +-? Medium short G .280 .605 +-? Medium short B .152 .063 +-? Medium short W .283 .298 +-? (9300 K +8 MPCD) gamma unspecified, typical 2.5? Zenith 14" FTM x y tol persistance R .616 .336 +-? 470 us G .324 .580 +-? 41 us B .146 .066 +-? 40 us W .313 .329 +-? (CIE D65, 6504 K) gamma unspecified, typical 2.5?