Patent ID: 9084328
Filing Date: 2015-07-14
Classification: F21K,F21S,F21Y,H01L,H05B

Abstract:
1. A lighting device comprising: a first group of solid state light emitters, said first group of solid state light emitters comprising at least one solid state light emitter; at least a first luminescent material; a second group of solid state light emitters, said second group of solid state light emitters comprising at least one solid state light emitter, said second group of solid state light emitters emitting light of a wavelength that differs from a wavelength of light emitted by said first group of solid state light emitters, said lighting device comprises at least a first set of parallel strings, said first set of parallel strings comprising at least said first string and a second string, at least one of the first group of solid state light emitters on said first string, at least one of the second group of solid state light emitters on the first string, a number of the first group solid state light emitters on the first string differing from a number of the second group of solid state light emitters on the first string, a first ratio differs from a second ratio,