Ie = G/(0.2 + t2-t1)
Where:
Ie = Effective intensity
G = The integral of the instantaneous intensity of the flashed light with respect to time
t1 = Time in seconds at the beginning of the flash
t2 = Time in seconds at the end of the flash
t2-t1 is greater than or equal to 0.2 seconds.
Table 66.01-11(5)-Coordinates of Chromaticity
Color | Coordinates of chromaticity | |
x axis | y axis | |
White | 0.500 | 0.382 |
0.440 | 0.382 | |
0.285 | 0.264 | |
0.285 | 0.332 | |
0.453 | 0.440 | |
0.500 | 0.440 | |
Green | 0.305 | 0.689 |
0.321 | 0.494 | |
0.228 | 0.351 | |
0.028 | 0.385 | |
Red | 0.735 | 0.265 |
0.721 | 0.259 | |
0.645 | 0.335 | |
0.665 | 0.335 | |
Yellow | 0.618 | 0.382 |
0.612 | 0.382 | |
0.555 | 0.435 | |
0.560 | 0.440 |
33 C.F.R. §66.01-11