US 11,721,675 B2
White light source system
Masahiko Yamakawa, Yokohama (JP); Noriaki Yagi, Yokohama (JP); and Kumpei Kobayashi, Yokohama (JP)
Assigned to Seoul Semiconductor Co., Ltd., Ansan-si (KR)
Filed by SEOUL SEMICONDUCTOR CO., LTD., Ansan-si (KR)
Filed on Aug. 29, 2022, as Appl. No. 17/897,230.
Application 17/897,230 is a continuation of application No. 17/234,035, filed on Apr. 19, 2021, granted, now 11,430,771.
Application 17/234,035 is a continuation of application No. 16/853,847, filed on Apr. 21, 2020, granted, now 11,094,679, issued on Aug. 17, 2021.
Application 16/853,847 is a continuation of application No. 16/444,243, filed on Jun. 18, 2019, granted, now 10,674,577, issued on Jun. 2, 2020.
Application 16/444,243 is a continuation of application No. 16/251,468, filed on Jan. 18, 2019, granted, now 10,375,786, issued on Aug. 6, 2019.
Application 16/251,468 is a continuation of application No. 15/850,399, filed on Dec. 21, 2017, granted, now 10,231,305, issued on Mar. 12, 2019.
Application 15/850,399 is a continuation of application No. PCT/JP2016/068714, filed on Jun. 23, 2016.
Claims priority of application No. 2015-126776 (JP), filed on Jun. 24, 2015; and application No. 2016-082968 (JP), filed on Apr. 18, 2016.
Prior Publication US 2023/0005889 A1, Jan. 5, 2023
Int. Cl. H01L 33/54 (2010.01); H01L 25/075 (2006.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/16 (2020.01); F21S 2/00 (2016.01); H01L 33/00 (2010.01); H01L 33/50 (2010.01); H01L 33/56 (2010.01); F21W 131/405 (2006.01); F21Y 115/10 (2016.01); F21Y 113/13 (2016.01)
CPC H01L 25/0753 (2013.01) [F21S 2/00 (2013.01); H01L 33/00 (2013.01); H01L 33/50 (2013.01); H01L 33/504 (2013.01); H01L 33/507 (2013.01); H01L 33/54 (2013.01); H01L 33/56 (2013.01); H05B 45/20 (2020.01); H05B 47/10 (2020.01); H05B 47/16 (2020.01); F21W 2131/405 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a substrate;
a first light emitter disposed on the substrate and configured to emit a first light having a first color temperature; and
a second light emitter disposed on the substrate and configured to emit a second light having a second color temperature,
wherein the first light emitter has a first converter comprising a first plurality of phosphors and a first resin, each phosphor of the first converter having different half-value widths,
wherein the second light emitter has a second converter comprising a second plurality of phosphors and a second resin, each phosphor of the second converter having different peak wavelengths,
wherein at least one of the plurality of phosphors of the first converter has a half-value width of 33 nm or more and 110 nm or less,
wherein a distance between peak wavelengths of at least two phosphors of the second converter is 150 nm or less,
wherein at least one of the plurality of phosphors of the first converter has a particle size in a range of 5 um to 50 um, and
wherein a thickness of the second converter is in a range of 0.07 mm to 1.5 mm.