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Brightness
The brightness of a newly manufactured trigalight depends on the thickness of the coating, the geometrical shape, the purity of the gas used as well as the filling pressure of the gaseous tritium. The painting of a reflection layer can further intensify the light. Nevertheless, one of the fundamental aspects is the colour of the light source. |
Brightness output by colour: Based on green (100 %) the brightness output of the other colours is as follows: |
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|
Maximum achievable brightness |
Measured: Green trigalight with max. pressure (standard values) |
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 |
Diameter ø d [mm] |
Footlambert [fl] |
Micro Lambert [uL] |
Nano Candela [nCd] / mm2 |
non-painted |
0.5 |
0.148 |
159 |
507 |
non-painted painted |
1.0 |
0.189 0.229 |
203 247 |
648 785 |
non-painted painted |
1.5 |
0.292 0.387 |
314 417 |
1076 1429 |
non-painted painted |
2.0 |
0.411 0.599 |
442 495 |
1409 2053 |
non-painted painted |
2.5 |
0.460 0.594 |
495 639 |
1577 2036 |
non-painted painted |
3.0 |
0.543 0.800 |
584 861 |
1861 2742 |
non-painted painted |
3.5 |
0.580 0.737 |
624 793 |
1988 2526 |
non-painted painted |
4.0 |
0.616 0.875 |
663 942 |
2111 2999 |
The maximum brightness also depends on the length and colour of the light source. |
The length of the light source should correspond to at least 3-4 x diameter [d]. |
Brightness/activity download |
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