rdf:type |
qudt:QuantityKind |
dcterms:description |
The Spectral Luminous Efficiency is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. A common choice is to choose units such that the maximum possible efficacy, 683 lm/W, corresponds to an efficiency of 100%. |
qudt:hasDimensionVector |
qkdv:A0E0L0I0M0H0T0D1 |
qudt:informativeReference |
http://en.wikipedia.org/wiki/Luminous_efficacy |
qudt:latexDefinition |
\(V(\lambda) = \frac{\Phi_\lambda(\lambda_m)}{\Phi_\lambda(\lambda)}\), where \(\Phi_\lambda(\lambda_m)\) is the spectral radiant flux at wavelength \(\lambda_m\) and \(\Phi_\lambda(\lambda)\) is the spectral radiant flux at wavelength \(\lambda\), such that both radiations produce equal luminous sensations under specified photometric conditions and \(\lambda_m\) is chosen so that the maximum value of this ratio is equal to 1. |
qudt:plainTextDescription |
“The Spectral Luminous Efficiency is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. A common choice is to choose units such that the maximum possible efficacy, 683 lm/W, corresponds to an efficiency of 100%.” |
qudt:symbol |
“V” |
rdfs:isDefinedBy |
http://qudt.org/3.1.10/vocab/quantitykind |
rdfs:label |
“Spectral Luminous Efficiency”@en |
