Illuminance is the total luminous flux incident on a surface per unit area. It is measured in lux (lx).
1 II = 0 ph
1 ph = 10,000 II
Example:
Convert 15 Illuminance Index to Phot:
15 II = 0.002 ph
Illuminance Index | Phot |
---|---|
0.01 II | 1.0000e-6 ph |
0.1 II | 1.0000e-5 ph |
1 II | 0 ph |
2 II | 0 ph |
3 II | 0 ph |
5 II | 0.001 ph |
10 II | 0.001 ph |
20 II | 0.002 ph |
30 II | 0.003 ph |
40 II | 0.004 ph |
50 II | 0.005 ph |
60 II | 0.006 ph |
70 II | 0.007 ph |
80 II | 0.008 ph |
90 II | 0.009 ph |
100 II | 0.01 ph |
250 II | 0.025 ph |
500 II | 0.05 ph |
750 II | 0.075 ph |
1000 II | 0.1 ph |
10000 II | 1 ph |
100000 II | 10 ph |