MIL-PRF-22885/58H
TABLE V. Chromaticity limits and photometric brightness.
Chromaticity limits 1/
Switch photometric brightness
2360° Kelvin
Colors
(footlamberts) 2/
x
y
.570
.260
.630
.300
25 footlamberts minimum
Green
.660
.160
.720
.200
.415
.562
SL 3/
.570
Yellow
300 footlamberts minimum
.596
.382
.605
SL 3/
.285
.695
SL 3/
.703
Red
80 footlamberts minimum
.655
.325
.660
SL 3/
.260
.150
.260
.220
10 footlamberts minimum
Blue
.320
.220
.320
.150
.420
.400
.420
.460
150 footlamberts minimum
White
.380
.460
.380
.400
1/ The chromaticities of the diffusing lenses or colored filters 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
light housing.
3/ SL: Spectrum locus (where intersected by other of coordinate pair).
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