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2. Luminous efficacy - Wikipedia

   en.wikipedia.org/wiki/Luminous_efficacy

   Luminous efficacy can be normalized by the maximum possible luminous efficacy to a dimensionless quantity called luminous efficiency.The distinction between efficacy and efficiency is not always carefully maintained in published sources, so it is not uncommon to see "efficiencies" expressed in lumens per watt, or "efficacies" expressed as a percentage.

3. Solid-state lighting - Wikipedia

   en.wikipedia.org/wiki/Solid-state_lighting

   Assessment of Advanced Solid State Lighting.National Academies Press. 2013. doi:10.17226/18279. ISBN 978-0-309-27011-3.; Kho, Mu-Jeong, Javed, T., Mark, R., Maier, E., and David, C. (2008) 'Final Report: OLED Solid State Lighting: Kodak European Research' MOTI (Management of Technology and Innovation) Project, Judge Business School of the University of Cambridge and Kodak European Research ...

4. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   Their luminous efficacies compared to normal LEDs depend on the spectral distribution of the resultant light output and the original wavelength of the LED itself. For example, the luminous efficacy of a typical YAG yellow phosphor based white LED ranges from 3 to 5 times the luminous efficacy of the original blue LED because of the human eye's ...

5. Luminous intensity - Wikipedia

   en.wikipedia.org/wiki/Luminous_intensity

   Luminous flux per unit solid angle per unit projected source area. The candela per square metre is sometimes called the nit. Illuminance: E v: lux (= lumen per square metre) lx (= lm/m 2) L −2 ⋅J: Luminous flux incident on a surface Luminous exitance, luminous emittance M v: lumen per square metre lm/m 2: L −2 ⋅J: Luminous flux emitted ...

6. Superluminescent diode - Wikipedia

   en.wikipedia.org/wiki/Superluminescent_diode

   The superluminescent diode was reported for the first time by Kurbatov et al. (1971) [2] [3] and Lee, Burrus, and Miller (1973). [4] [3] By 1986 Dr. Gerard A. Alphonse at RCA Laboratories (now SRI International), invented a novel design enabling high power superluminescent diodes. [5]

7. This anti-aging Estée Lauder SPF foundation is 40% off at ...

   www.aol.com/lifestyle/this-anti-aging-estee...

   This week's deals end Dec. 14th, and then from the 15th to 24th Ulta's Big Holiday Beauty Sale will have a whole new batch of beauty deals, like 25% off all CeraVe products and 50% off Urban Decay ...