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    Light emitting device and illuminator using the same
    1.
    发明申请
    Light emitting device and illuminator using the same 有权
    发光装置及使用其的照明装置

    公开(公告)号：US20050145854A1

    公开(公告)日：2005-07-07

    申请号：US10918339

    申请日：2004-08-16

    申请人： Takatoshi Seto ,  Naoto Kijima ,  Akira Ohno

    发明人： Takatoshi Seto ,  Naoto Kijima ,  Akira Ohno

    IPC分类号： C09K11/77 ,  H01L27/15 ,  H01L33/50 ,  H05B33/14

    CPC分类号： C09K11/7734 ,  C09K11/7737 ,  C09K11/7738 ,  C09K11/7739 ,  H01L33/502 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

    摘要： An object of the present invention is to provide a light emitting device having a high emission intensity, and a light emitting device having a high emission intensity and a good color rendering property. The present invention provides a light emitting device which comprises: a first light emitter emitting light of from 350 to 415 nm and a second light emitter emitting visible light by exposure to the light from the first light emitter, wherein said second light emitter comprises a phosphor capable of satisfying any one of the following conditions (i) to (iv): (i) the phosphor comprises: (a) a crystal phase whose Eu concentration providing the maximum emission intensity at any one of excitation wavelengths of from 350 to 415 nm is higher than that providing the maximum emission intensity at an excitation wavelength of 254 nm; and (b) a crystal phase which is activated by Eu having at least 1.1 times the concentration providing the maximum emission intensity at an excitation wavelength of 254 nm and 0.5 to 9 times the concentration providing the maximum emission intensity at an excitation frequency of 400 nm: (ii) the phosphor comprises a crystal phase having an Eu—Eu mean distance, as calculated from the Eu concentration in a crystal matrix, of 4 Å or greater but not greater than 11 Å: (iii) the phosphor has a quantum absorption efficiency αq of 0.8 or greater: (iv) the phosphor has a product αq·ηi of a quantum absorption efficiency αq and an internal quantum efficiency ηi of 0.55 or greater.

    摘要翻译： 本发明的目的是提供一种具有高发光强度的发光器件和具有高发光强度和良好显色性能的发光器件。 本发明提供了一种发光装置，其包括：发射350〜415nm的光的第一发光体和通过暴露于来自第一光发射体的光而发射可见光的第二发光体，其中所述第二发光体包括磷光体 能够满足以下条件（i）至（iv）中的任何一个：（i）所述荧光体包括：（a）在350至415nm的激发波长中的任何一个处提供最大发射强度的Eu浓度的结晶相 高于在254nm的激发波长处提供最大发射强度; 和（b）由Eu激发的晶相，其具有在254nm的激发波长处提供最大发射强度的浓度的至少1.1倍，并且在400nm的激发频率下提供最​​大发射强度的浓度的0.5至9倍 ：（ii）该荧光体包括从晶体矩阵中的Eu浓度计算出的具有Eu-Eu平均距离的结晶相，为4以上但以下：（iii）荧光体具有量子吸收 0.8或更高的效率α：（iv）磷光体具有量子吸收效率α

    Light emitting device and illuminator using the same
    2.
    发明授权
    Light emitting device and illuminator using the same 有权
    发光装置及使用其的照明装置

    公开(公告)号：US07357882B2

    公开(公告)日：2008-04-15

    申请号：US10918339

    申请日：2004-08-16

    申请人： Takatoshi Seto ,  Naoto Kijima ,  Akira Ohno

    发明人： Takatoshi Seto ,  Naoto Kijima ,  Akira Ohno

    IPC分类号： H01L33/00

    CPC分类号： C09K11/7734 ,  C09K11/7737 ,  C09K11/7738 ,  C09K11/7739 ,  H01L33/502 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

    摘要： An object of the present invention is to provide a light emitting device having a high emission intensity, and a light emitting device having a high emission intensity and a good color rendering property.The present invention provides a light emitting device which comprises: a first light emitter emitting light of from 350 to 415 nm and a second light emitter emitting visible light by exposure to the light from the first light emitter, wherein said second light emitter comprises a phosphor capable of satisfying any one of the following conditions (i) to (iv): (i) the phosphor comprises: (a) a crystal phase whose Eu concentration providing the maximum emission intensity at any one of excitation wavelengths of from 350 to 415 nm is higher than that providing the maximum emission intensity at an excitation wavelength of 254 nm; and (b) a crystal phase which is activated by Eu having at least 1.1 times the concentration providing the maximum emission intensity at an excitation wavelength of 254 nm and 0.5 to 9 times the concentration providing the maximum emission intensity at an excitation frequency of 400 nm: (ii) the phosphor comprises a crystal phase having an Eu—Eu mean distance, as calculated from the Eu concentration in a crystal matrix, of 4 Å or greater but not greater than 11 Å: (iii) the phosphor has a quantum absorption efficiency αq of 0.8 or greater: (iv) the phosphor has a product αq·ηi of a quantum absorption efficiency αq and an internal quantum efficiency ηi of 0.55 or greater.

    摘要翻译： 本发明的目的是提供一种具有高发光强度的发光器件和具有高发光强度和良好显色性能的发光器件。 本发明提供了一种发光装置，其包括：发射350〜415nm的光的第一发光体和通过暴露于来自第一光发射体的光而发射可见光的第二发光体，其中所述第二发光体包括磷光体 能够满足以下条件（i）至（iv）中的任何一个：（i）所述荧光体包括：（a）在350至415nm的激发波长中的任何一个处提供最大发射强度的Eu浓度的结晶相 高于在254nm的激发波长处提供最大发射强度; 和（b）由Eu激发的晶相，其具有在254nm的激发波长处提供最大发射强度的浓度的至少1.1倍，并且在400nm的激发频率下提供最​​大发射强度的浓度的0.5至9倍 ：（ii）该荧光体包括从晶体矩阵中的Eu浓度计算出的具有Eu-Eu平均距离的结晶相，为4以上但以下：（iii）荧光体具有量子吸收 0.8或更高的效率α：（iv）磷光体具有量子吸收效率α

    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE
    3.
    发明申请
    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE 审中-公开
    卤磷酸盐和白色发光装置

    公开(公告)号：US20120267999A1

    公开(公告)日：2012-10-25

    申请号：US13411012

    申请日：2012-03-02

    申请人： Hiroaki Sakuta ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    发明人： Hiroaki Sakuta ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    IPC分类号： H01L33/50 ,  C09K11/86

    CPC分类号： C09K11/7739 ,  H01L33/502 ,  H01L2924/0002 ,  Y02B20/181 ,  H01L2924/00

    摘要： The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.A phosphor having a chemical composition of general formula [1] has sufficient emission intensity in a wavelength region around 490 nm, and a white light-emitting device that uses such a phosphor has improved bright blue reproducibility. (Sr,Ca)aBabEux(PO4)cXd  [1] (In general formula [1], X is Cl; c, d and x are numbers satisfying 2.7≦c≦3.3, 0.9≦d≦1.1 and 0.3≦x≦1.2; and a and b satisfy the conditions a+b=5−x and 0.12≦b/(a+b)≦0.4.).

    摘要翻译： 本发明提供一种蓝色（蓝绿色）荧光体，其在490nm左右的波长范围内具有足够的发光强度，并且在LED操作期间达到的温度区域具有高的发光亮度。 本发明还提供一种使用发光峰值波长为535nm以上并具有提高的蓝色再现性的高亮度绿色荧光体的白色发光装置。 具有通式[1]的化学组成的荧光体在490nm左右的波长区域具有足够的发光强度，并且使用这种荧光体的白色发光器件具有改善的亮蓝色重现性。 （Sr，Ca）aBabEux（PO4）cXd [1]（通式[1]中，X为Cl; c，d和x为满足2.7＆nlE; c＆nlE; 3.3,0.9＆nlE; d＆nlE; 1.1和0.3＆ x和nlE; 1.2; a和b满足条件a + b = 5-x和0.12＆nlE; b /（a + b）＆nlE; 0.4。

    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE
    6.
    发明申请
    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE 审中-公开
    卤磷酸盐和白色发光装置

    公开(公告)号：US20120286646A1

    公开(公告)日：2012-11-15

    申请号：US13457164

    申请日：2012-04-26

    申请人： Hiroaki SAKUTA ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    发明人： Hiroaki SAKUTA ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    IPC分类号： H01L33/50

    CPC分类号： C09K11/7739 ,  H01L33/502 ,  H01L2924/0002 ,  Y02B20/181 ,  H01L2924/00

    摘要： The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.A phosphor having a chemical composition of general formula [1] has sufficient emission intensity in a wavelength region around 490 nm, and a white light-emitting device that uses such a phosphor has improved bright blue reproducibility. (Sr, Ca)aBabEux(PO4)cXd  [1] (In general formula [1], X is Cl; c, d and x are numbers satisfying 2.7≦c≦3.3, 0.9≦d≦1.1 and 0.3≦x≦1.2; and a and b satisfy the conditions a+b=5−x and 0.12≦b/(a+b)≦0.4.)

    摘要翻译： 本发明提供一种蓝色（蓝绿色）荧光体，其在490nm左右的波长范围内具有足够的发光强度，并且在LED操作期间达到的温度区域具有高的发光亮度。 本发明还提供一种使用发光峰值波长为535nm以上并具有提高的蓝色再现性的高亮度绿色荧光体的白色发光装置。 具有通式[1]的化学组成的荧光体在490nm左右的波长区域具有足够的发光强度，并且使用这种荧光体的白色发光器件具有改善的亮蓝色重现性。 （Sr，Ca）aBabEux（PO4）cXd [1]（通式[1]中，X为Cl; c，d和x为满足2.7＆nlE; c＆nlE; 3.3,0.9＆nlE; d＆nlE; 1.1和0.3＆ x和nlE; 1.2; a和b满足条件a + b = 5-x和0.12＆nlE; b /（a + b）＆nlE; 0.4。

    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE
    8.
    发明申请
    HALOPHOSPHATE PHOSPHOR AND WHITE LIGHT-EMITTING DEVICE 审中-公开
    卤磷酸盐和白色发光装置

    公开(公告)号：US20120212123A1

    公开(公告)日：2012-08-23

    申请号：US13407907

    申请日：2012-02-29

    申请人： Hiroaki SAKUTA ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    发明人： Hiroaki SAKUTA ,  Kazuhiko Kagawa ,  Yoshihito Sato ,  Takatoshi Seto ,  Naoto Kijima

    IPC分类号： H01J1/63 ,  C09K11/81

    CPC分类号： C09K11/7739 ,  H01L33/502 ,  Y02B20/181

    摘要： The present invention provides a blue (blue-green) phosphor that has sufficient emission intensity in the wavelength region around 490 nm and that has high emission luminance at a temperature region reached during LED operation. The present invention also provides a white light-emitting device that uses a high-luminance green phosphor having an emission peak wavelength of 535 nm or greater and that has improved bright blue reproducibility.A phosphor having a chemical composition of general formula [1] has sufficient emission intensity in a wavelength region around 490 nm, and a white light-emitting device that uses such a phosphor has improved bright blue reproducibility. (Sr,Ca)aBabEux(PO4)cXd  [1] (In general formula [1], X is Cl; c, d and x are numbers satisfying 2.7≦c≦3.3, 0.9≦d≦1.1 and 0.3≦x≦1.2; and a and b satisfy the conditions a+b=5−x and 0.05≦b/(a+b)≦0.6.)

    摘要翻译： 本发明提供一种蓝色（蓝绿色）荧光体，其在490nm左右的波长范围内具有足够的发光强度，并且在LED操作期间达到的温度区域具有高的发光亮度。 本发明还提供一种使用发光峰值波长为535nm以上并具有提高的蓝色再现性的高亮度绿色荧光体的白色发光装置。 具有通式[1]的化学组成的荧光体在490nm左右的波长区域具有足够的发光强度，并且使用这种荧光体的白色发光器件具有改善的亮蓝色重现性。 （Sr，Ca）aBabEux（PO4）cXd [1]（通式[1]中，X为Cl; c，d和x为满足2.7＆nlE; c＆nlE; 3.3,0.9＆nlE; d＆nlE; 1.1和0.3＆ x和nlE; 1.2; a和b满足条件a + b = 5-x和0.05＆nlE; b /（a + b）＆nlE; 0.6。