Patent ID: 9676998
Date: 2017-06-13
CPC Classifications: C09K,H01L,H05B

Claim:
1. A lighting device comprising a light source configured to generate light source light, and a light converter configured to convert at least part of the light source light into visible converter light, wherein the light converter comprises a matrix containing a luminescent material comprising a combination of at least two organic phosphors defined by formulas IA and IB: wherein G1-G12 are independently selected from hydrogen, halogen, R1, OR1, NHR1, and NR2R1, wherein R1 and R2 are independently selected from C1-C18alkyl, C6-C24aryl, and C6-C24 heteroaryl; and wherein the luminescent material comprising a combination of at least four different organic phosphors defined by formulas IA, IB, IA′ and IB′; wherein G1-G12 are as defined above.