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      Impact of circadian tuning on the illuminance and color uniformity of a multichannel luminaire with spatially optimized LED placement

      Abeysekera, Sanush K.; Kalavally, Vineetha; Ooi, Melanie; Kuang, Ye Chow
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      Files
      oe-28-1-130.pdf
      Published version, 3.366Mb
      DOI
       10.1364/OE.381115
      Link
       opg.optica.org
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      Permanent link to Research Commons version
      https://hdl.handle.net/10289/15513
      Abstract
      Potential advantages offered by multichannel luminaires with regards to spectral tuning are frequently overshadowed by its design challenges, a major one being the non-uniformity in illuminance and color distribution. In this paper, we present a formulation using genetic algorithm (GA) to optimize the Light Emitting Diode (LED) placement, yielding 40% superior uniformity in illuminance and color distributions compared to existing analytical formulations, substantially reducing the reliance on optical design for this purpose. It is specifically shown that our approach is employable for circadian tuning applications, even when heavily constrained by industry specifications on panel size and minimum LED separation.
      Date
      2020-01-06
      Type
      Journal Article
      Publisher
      OPTICAL SOC AMER
      Rights
      © 2020. This work is licensed under a CC BY 4.0 license.
      Collections
      • Science and Engineering Papers [3193]
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