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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/m(2)) have been established based on the detector-based candela, and now all...
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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[Gaithersburg, MD] : U.S. Dept. of Commerce, National Institute of Standards and Technology
1997
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4894597/ https://www.ncbi.nlm.nih.gov/pubmed/27805149 http://dx.doi.org/10.6028/jres.102.022 |