US 11,862,758 B2
Systems and methods for fluoride ceramic phosphors for LED lighting
Nerine Cherepy, Piedmont, CA (US); Ross Allen Osborne, Livermore, CA (US); Stephen A. Payne, Castro Valley, CA (US); Zachary Seeley, Livermore, CA (US); Alok Srivastava, Niskayuna, NY (US); William Winder Beers, Chesterland, OH (US); and William Erwin Cohen, Solon, OH (US)
Assigned to Lawrence Livermore National Security, LLC, Livermore, CA (US); and Current Lighting Solutiosn, LLC, Cleveland, OH (US)
Filed by Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed on Nov. 26, 2019, as Appl. No. 16/696,472.
Claims priority of provisional application 62/772,390, filed on Nov. 28, 2018.
Prior Publication US 2020/0168770 A1, May 28, 2020
Int. Cl. H01L 33/50 (2010.01); F21K 9/90 (2016.01); H01L 33/64 (2010.01); H01L 33/00 (2010.01); F21K 9/64 (2016.01); F21Y 115/30 (2016.01); F21Y 115/10 (2016.01)
CPC H01L 33/504 (2013.01) [F21K 9/64 (2016.08); F21K 9/90 (2013.01); H01L 33/0095 (2013.01); H01L 33/641 (2013.01); F21Y 2115/10 (2016.08); F21Y 2115/30 (2016.08); H01L 2933/0041 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An LED component comprising:
a light emitting diode configured to generate a first wavelength comprising blue light; and
a single-layered phosphor composite structure positioned adjacent to the LED, the single-layered phosphor composite structure comprising:
a fluoride phosphor matrix configured to emit light at a second wavelength comprising orange or red light when irradiated by the first wavelength, and
a plurality of distinct additional phosphor particles homogenously integrated within the fluoride phosphor matrix, the distinct additional phosphor particles configured to emit light at a third wavelength that is different from the second wavelength when irradiated by the first wavelength, the third wavelength comprising cyan, green, or yellow light,
wherein a first amount of relative photon emission of the single-layered phosphor composite structure and a second amount of relative photon emission of the light emitting diode together generate white light, the first amount being greater than the second amount, and the first amount including a third amount of relative photon emission of the fluoride phosphor matrix and a fourth amount of relative photon emission of the distinct additional phosphor particles, the fourth amount being greater than the third amount.