Patent · US Active

LED lamps with improved quality of light

US8933644B2 · kind B2 · utility

21Cited by
1References
29Claims
0Family size

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Inventors

Key dates

Filing dateJun 20, 2014
Grant dateJan 13, 2015
Priority date
Expiry dateJun 20, 2034

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH10H20/819
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

LED lamp systems having improved light quality are disclosed. The lamps emit more than 500 lm and more than 2% of the power in the spectral power distribution is emitted within a wavelength range from about 390 nm to about 430 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.