Convert Picocandelas to Violle
Convert Picocandelas (pcd) to Violle (Vl) instantly and accurately.
Conversion Formula
Vl = pcd × 4.957858205e-14
About Picocandelas
The picocandela (pcd) equals 10⁻¹² cd. A theoretical subunit used only in precision photometric standard traceability and single-photon detector characterisation. The faintest LED indicator in standby mode (~10 µcd) is one million times brighter. Appears in calibration chain documentation. 1 pcd = 10⁻¹² 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
| Picocandelas (pcd) | Violle (Vl) |
|---|---|
| 1 pcd | 4.958 × 10-14 Vl |
| 2 pcd | 9.916 × 10-14 Vl |
| 5 pcd | 2.479 × 10-13 Vl |
| 10 pcd | 4.958 × 10-13 Vl |
| 25 pcd | 1.239 × 10-12 Vl |
| 50 pcd | 2.479 × 10-12 Vl |
| 100 pcd | 4.958 × 10-12 Vl |