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Light-emitting device, method for designing light-emitting device, method for driving light-emitting device, illumination method, and method for manufacturing light-emitting device

  • US 9,755,118 B2
  • Filed: 09/15/2016
  • Issued: 09/05/2017
  • Est. Priority Date: 03/04/2013
  • Status: Active Grant
First Claim
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1. A light-emitting device which includes M number of light-emitting areas (M is 2 or greater natural number) and has light-emitting elements in the light-emitting areas, whereinwhen φ

  • SSL

    ) (N is 1 to M) is a spectral power distribution of a light emitted from each light emitting area in a main radiant direction of the light-emitting device, and φ

    SSL

    ), which is a spectral power distribution of all the lights emitted from the light-emitting device in the radiant direction, is represented by

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