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    • 13. 发明申请
    • LIGHT EMITTING DEVICE
    • 发光装置
    • US20130257266A1
    • 2013-10-03
    • US13991987
    • 2011-11-08
    • Shinya Ishizaki
    • Shinya Ishizaki
    • H05B33/12
    • H01L33/504C09K11/7721C09K11/7734H01L25/0753H01L33/486H01L33/505H01L33/507H01L33/62H01L2224/48091H01L2224/48137H05B33/12H01L2924/00014
    • Provided is a light emitting device in which with the general color rendering index Ra and the special color rendering index R9 maintained at high numeric values, the light emission efficiency is prevented from being reduced as much as possible, and the high color rendering and the high efficiency are achieved so as to be usable for general lighting usage. The device includes at least one light emitting element 6 emitting a light having a peak emission wavelength in a near-ultraviolet to blue region, and a phosphor layer 5 containing a green phosphor excited by a primary light emitted from the light emitting element 6 and emitting a light having a peak emission wavelength in a green region, a first red phosphor excited by the primary light and emitting a light having a peak emission wavelength in a red region, and a second red phosphor exited by the primary light and emitting a light having a peak emission wavelength different from that of the first red phosphor in the red region.
    • 提供一种发光装置,其中一般显色指数Ra和特殊显色指数R9保持在高数值时,尽可能地防止发光效率的降低,并且高显色和高 实现效率以便可用于一般照明用途。 该装置包括发射具有近紫外到蓝色区域中的峰值发射波长的光的至少一个发光元件6和包含由从发光元件6发射的初级光激发的绿色荧光体的荧光体层5,并且发射 在绿色区域具有峰值发射波长的光,由初级光激发并发射具有红色区域中的峰值发射波长的光的第一红色荧光体和通过初级光发射的第二红色磷光体,并发射具有 与红色区域中的第一红色荧光体的峰值发射波长不同。
    • 20. 发明申请
    • LIGHT-EMITTING DEVICE
    • 发光装置
    • US20110299268A1
    • 2011-12-08
    • US13152587
    • 2011-06-03
    • Shinya IshizakiTomokazu NadaMakoto AgataniMakoto MatsudaShinji OsakiTatsuya MoriokaHitoshi MatsushitaToyonori UemuraToshio Hata
    • Shinya IshizakiTomokazu NadaMakoto AgataniMakoto MatsudaShinji OsakiTatsuya MoriokaHitoshi MatsushitaToyonori UemuraToshio Hata
    • F21V9/16F21V7/00
    • H05B33/22H01L25/0753H01L33/60H01L33/62H01L2224/48137H01L2224/48139
    • The light-emitting device includes: a substrate which has a single layer structure in which a conductive member is partially provided on a surface of the substrate; a plurality of light-emitting elements which are directly provided on the surface of the substrate so as to be electrically connected with the conductive member; a first light reflection resin layer; a second light reflection resin layer which is provided in a looped shape on the surface of the substrate so as to surround an area in which the plurality of light-emitting elements are provided; and a sealing resin which covers the plurality of light-emitting elements. In the area in which the plurality of light-emitting elements are provided, the conductive member is covered with the first light reflection resin layer, the conductive member, which is provided under the second light reflection resin layer, is covered with the second light reflection resin layer directly, and a printed resistor, which is provided under the second light reflection resin layer, is covered with the second light reflection resin layer via the first light reflection resin layer. This makes it possible to provide the light-emitting device which (i) reduces absorption of light so as to achieve excellent light extraction efficiency, and (ii) is highly reliable.
    • 发光装置包括:具有单层结构的基板,其中导电构件部分地设置在基板的表面上; 多个发光元件,其直接设置在所述基板的表面上以与所述导电构件电连接; 第一光反射树脂层; 第二光反射树脂层,其以环状设置在所述基板的表面上,以围绕设置有所述多个发光元件的区域; 以及覆盖多个发光元件的密封树脂。 在设置有多个发光元件的区域中,导电部件被第一光反射树脂层覆盖,设置在第二光反射树脂层下方的导电部件被第二光反射覆盖 树脂层和设置在第二光反射树脂层下方的印刷电阻器经由第一光反射树脂层被第二光反射树脂层覆盖。 这使得可以提供(i)减少光的吸收以获得优异的光提取效率的发光装置,(ii)高可靠性。