公开(公告)号：US07629620B2

公开(公告)日：2009-12-08

申请号：US11349896

申请日：2006-02-09

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00 ,  H01J33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

公开(公告)号：US07023019B2

公开(公告)日：2006-04-04

申请号：US10469740

申请日：2002-09-03

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1−a1−b1−xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 组分，由化学式表示的化合物：（Sr 1-a 1-b 1-x Ba）a a1 Ca 2 Sb x x （0 <= a1 <= 0.3,0 <= b1 <= 0.8和0

公开(公告)号：US20050227569A1

公开(公告)日：2005-10-13

申请号：US11143660

申请日：2005-06-03

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/32 ,  H01L33/50 ,  H01L33/56 ,  H01L33/60 ,  H01L33/62 ,  H01J1/62

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 组分，由化学式表示的化合物：（Sr 1-a 1-b 1-x Ba）a a1 Ca 2 Sb x x （0 <= a1 <= 0.3,0 <= b1 <= 0.8和0

公开(公告)号：US07592639B2

公开(公告)日：2009-09-22

申请号：US11585892

申请日：2006-10-25

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 （Sr1-a1-b1-xBaa1Cab1Eux）2SiO4（0≤a1= 0.3,0 <= b1 <= 0.8,0

公开(公告)号：US20070046169A1

公开(公告)日：2007-03-01

申请号：US11585892

申请日：2006-10-25

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 组分，由化学式表示的化合物：（Sr 1-a 1-b 1-x Ba）a a1 Ca 2 Sb x x （0 <= a1 <= 0.3,0 <= b1 <= 0.8和0

公开(公告)号：US07772769B2

公开(公告)日：2010-08-10

申请号：US11908000

申请日：2007-10-19

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01J1/62

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 （Sr1-a1-b1-xBaa1Cab1Eux）2SiO4（0＆nlE; a1＆nlE; 0.3,0＆nlE; b1＆nlE; 0.8和0

公开(公告)号：US07422504B2

公开(公告)日：2008-09-09

申请号：US11143660

申请日：2005-06-03

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01J1/62 ,  H01J63/04

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 组分，由化学式表示的化合物：（Sr 1-a 1-b 1-x Ba）a a1 Ca 2 Sb x x （0 <= a1 <= 0.3,0 <= b1 <= 0.8和0

公开(公告)号：US20080135862A1

公开(公告)日：2008-06-12

申请号：US11908000

申请日：2007-10-19

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

摘要翻译： 芯片型发光半导体器件包括：基板4; 安装在基板4上的蓝色LED1; 以及由黄色/黄色荧光体颗粒2和基材13（半透明树脂）的混合物制成的发光层3。 黄/黄色荧光体颗粒2是一种硅酸盐荧光体，其吸收由蓝色LED1发射的蓝色光，以发射在550nm至600nm的波长范围内具有主发光峰的荧光，并且其包含作为主要 组分，由化学式表示的化合物：（Sr 1-a 1-b 1-x Ba）a a1 Ca 2 Sb x x （0 <= a 1 <= 0.3,0 <= b 1 <= 0.8和0

公开(公告)号：US20060124942A1

公开(公告)日：2006-06-15

申请号：US11349896

申请日：2006-02-09

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara ,  Tadaaki Ikeda ,  Hidenori Kamei ,  Yasuyuki Hanada ,  Kei Sakanoue

IPC分类号： H01L33/00

CPC分类号： C09K11/025 ,  C09K11/7731 ,  C09K11/7734 ,  C09K11/7735 ,  C09K11/7774 ,  C09K11/7792 ,  F21S6/00 ,  F21S6/003 ,  F21Y2115/10 ,  H01L24/45 ,  H01L33/502 ,  H01L33/54 ,  H01L2224/16145 ,  H01L2224/32225 ,  H01L2224/45124 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/12035 ,  H01L2924/12041 ,  H01L2924/12042 ,  H01L2924/12044 ,  H01L2924/181 ,  H05B33/14 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

摘要： A chip-type light-emitting semiconductor device includes: a substrate 4; a blue LED 1 mounted on the substrate 4; and a luminescent layer 3 made of a mixture of yellow/yellowish phosphor particles 2 and a base material 13 (translucent resin). The yellow/yellowish phosphor particles 2 is a silicate phosphor which absorbs blue light emitted by the blue LED 1 to emit a fluorescence having a main emission peak in the wavelength range from 550 nm to 600 nm, inclusive, and which contains, as a main component, a compound expressed by the chemical formula: (Sr1-a1-b1-xBaa1Cab1Eux)2SiO4 (0≦a1≦0.3, 0≦b1≦0.8 and 0

公开(公告)号：US07170221B2

公开(公告)日：2007-01-30

申请号：US10491411

申请日：2002-09-27

申请人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara

发明人： Toshihide Maeda ,  Shozo Oshio ,  Katsuaki Iwama ,  Hiromi Kitahara

IPC分类号： H01J1/63 ,  H01L31/055

摘要： The semiconductor light emitting device is composed of a combination of a near ultraviolet LED and a phosphor layer including a plurality of phosphors for absorbing near ultraviolet emitted by the near ultraviolet LED and for emitting fluorescence having an emission peak in a visible wavelength region, and the phosphor layer includes four kinds of phosphors, that is, a blue-based phosphor, a green-based phosphor, a red-based phosphor and a yellow-based phosphor. Thus, lowering of luminous flux derived from red-based light with low luminosity is compensated by yellow-based light with comparatively high luminosity, and the resultant white-based light can be well color balanced, and hence, a semiconductor light emitting device emitting white-based light with high luminous flux and a large Ra can be obtained.