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Lighting Device

  • US 20200133077A1
  • Filed: 10/30/2018
  • Published: 04/30/2020
  • Est. Priority Date: 10/30/2018
  • Status: Active Grant
First Claim
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1. A lighting device, comprising:

  • a lighting unit emitting a light spectrum having a main peak between 520 nm and 780 nm and a sub peak corresponding to a first wavelength between 400 nm and 470 nm,wherein a second sub peak integral of the light spectrum is greater than a first sub peak integral of the light spectrum,wherein the first sub peak integral is an integral of the light spectrum calculated from a wavelength of the first wavelength minus 20 nm to the first wavelength,wherein the second sub peak integral is an integral of the light spectrum calculated from the first wavelength to a wavelength of the first wavelength plus 20 nm,wherein a ratio of the first sub peak integral to the second sub peak integral is in a range from 20% to 98%.

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