Convert Nanocandelas to Violle
Convert Nanocandelas (ncd) to Violle (Vl) instantly and accurately.
Conversion Formula
Vl = ncd × 4.957858205e-11
About Nanocandelas
The nanocandela (ncd) equals 10⁻⁹ cd. The scale of extremely faint bioluminescence: a single luciferin-luciferase reaction emits around 1-10 ncd; dark-adapted firefly flashes peak at a few hundred ncd. Also the range for cooled avalanche-photodiode sensitivity characterisation. 1 ncd = 10⁻⁹ cd.
About Violle
The violle (Vl) ≈ 20.17 cd is the first photometric unit not based on a flame source, proposed by Jules Violle in 1881 and adopted by the CGS system. Defined as the luminous intensity of 1 cm² of platinum at its solidification point (1 768 °C). Used historically in French and international photometry before 1948. 1 Vl ≈ 20.17 cd.
Quick Reference Table
| Nanocandelas (ncd) | Violle (Vl) |
|---|---|
| 1 ncd | 4.958 × 10-11 Vl |
| 2 ncd | 9.916 × 10-11 Vl |
| 5 ncd | 2.479 × 10-10 Vl |
| 10 ncd | 4.958 × 10-10 Vl |
| 25 ncd | 1.239 × 10-9 Vl |
| 50 ncd | 2.479 × 10-9 Vl |
| 100 ncd | 4.958 × 10-9 Vl |