Improved Photometric Standards and Calibration Procedures at NIST
NIST has recently established a detector-based luminous intensity unit (candela, cd), which is derived from the NIST absolute cryogenic radiometer. Subsequently, the luminous flux unit (lumen, lm) and the luminance unit (cd/m2) have been established based on the detector-based candela, and now all t...
| Main Author: | |
|---|---|
| Format: | Online |
| Language: | English |
| Published: |
[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1997
|
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4894597/ |