MIL-PRF-22885/53D
TABLE I. Chromaticity limits and photometric brightness.
Switch photometric
Chromaticity limits 1/
Color
Color code
brightness
2360 Kelvin
(foot-lamberts) 2/
X
Y
minimum
Blue
B
210
280
35
330
280
330
420
210
420
Green
G
260
570
50
300
630
160
660
200
720
Red
R
695
80
285
703
SL 3/
325
655
SL 3/
660
White
W
380
350
150
460
385
460
430
380
410
Yellow
Y
562
150
415
570
SL 3/
382
596
SL 3/
605
1/ The chromaticity of the illuminated display, expressed as x and y coordinates on
the CIE chromaticity diagram, shall lie within areas bounded by the coordinates listed
for each color, using a source illuminate of 2360 K.
2/ Switch photometric brightness, when viewed from the front of the applicable
pushbutton display and using midget flange, T-1 ¾ incandescent lamps operated at
a 34 .02 MSCP.
3/ SL = Spectrum Locus (where intersected by other coordinate pair).
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