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1. 发明专利

JP2013038353A Light-emitting module 审中-公开
标题翻译：发光模块
公开(公告)号：JP2013038353A
公开(公告)日：2013-02-21
申请号：JP2011175538
申请日：2011-08-11
申请人： Koito Mfg Co Ltd , 株式会社小糸製作所
发明人： GOTO WATARU , ITO KAZUHIRO , NOMURA AKIHIRO
IPC分类号： H01L33/54 , H01L33/50
摘要： PROBLEM TO BE SOLVED: To improve light extraction efficiency in a light-emitting module using a phosphor which is excited by ultraviolet rays or short wavelength visible light to emit light.SOLUTION: A light-emitting module 10 is formed by separating a mold member 30 encapsulating a light-emitting element 14 which emits ultraviolet rays or short wavelength visible light, into a high diffusion layer 30A having mixed therein a phosphor 25a, etc. which respectively are excited by ultraviolet rays or short wavelength visible light to emit visible light in various colors and a low diffusion layer 40A whose light diffusion degree is lower than that of the high diffusion layer 30A. Part of the phosphor 25a, etc. dispersed inside the mold member 30 behaves as light diffusion particles, so that phosphor light is reflected from the phosphor 25a, getting scattered inside the mold member. Furthermore, since a difference in refractive index between the mold member 30 and atmospheric air 50 is large, total reflection occurs in their boundary. For these reasons, not all light is emitted to the outside of the mold member 30, resulting in losses of light. In the light-emitting module 10, however, the light which would have otherwise been lost can now be efficiently extracted out of the mold member.
摘要翻译：要解决的问题：使用由紫外线或短波长可见光激发的荧光体发光的发光模块中的光提取效率提高。解决方案：发光模块10通过将封装有发出紫外线或短波长可见光的发光元件14的模具构件30分离成混合有磷光体25a等的高扩散层30A而形成分别被紫外线或短波长可见光激发，发出各种不同颜色的可见光，而光扩散度低于高扩散层30A的低扩散层40A。分散在模具构件30内的荧光体25a等的一部分表现为光漫射颗粒，使得荧光体光从荧光体25a反射，散射在模具构件内部。此外，由于模具构件30和大气50之间的折射率差大，所以在其边界发生全反射。由于这些原因，并不是所有的光都发射到模具构件30的外部，导致光的损失。然而，在发光模块10中，现在可以有效地从模具构件中提取否则将丢失的光。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013125808A Light-emitting module 审中-公开
标题翻译：发光模块
公开(公告)号：JP2013125808A
公开(公告)日：2013-06-24
申请号：JP2011273001
申请日：2011-12-14
申请人： Koito Mfg Co Ltd , 株式会社小糸製作所
发明人： ITO KAZUHIRO , KUBOYAMA OSAMU , GOTO WATARU
IPC分类号： H01L33/54
CPC分类号： H01L33/50 , H01L25/0753 , H01L33/54 , H01L2924/0002 , H01L2924/00
摘要： PROBLEM TO BE SOLVED: To provide a light-emitting module which improves light extraction efficiency in a light-emitting module using a phosphor which is excited to emit light by an ultraviolet ray or short wavelength visible light, and also reduces unevenness in luminance.SOLUTION: A plurality of light-emitting elements 14 which emit an ultraviolet ray or short wavelength visible light are arranged in linear form, and sealing resins 30 containing a phosphor 25a, etc. which is excited by light from the light source to emit light are molded in shape of a dome on top of each of the light-emitting elements 14, the light-emitting elements 14 being interconnected by the sealing resins 30, in which way the light-emitting module is formed. Because of this construction, the sealing resins come in substantially the same thickness from the light-emitting elements, and a difference between bright and dark parts appearing on the surfaces of the sealing resins depending on the distance from the light-emitting elements is reduced, so is the unevenness in luminance on the module surface. Since light from the phosphor is radiated to the outside of the sealing resins without being totally reflected on the boundary surface, light extraction efficiency is improved. The amount of the sealing resins used can be reduced, and the product cost of the module can therefore be cut down.
摘要翻译：解决的问题：提供一种发光模块，其使用被紫外线或短波长可见光激发而发光的荧光体来提高发光模块的光提取效率，并且还减少了不均匀性亮度。解决方案：发射紫外线或短波长可见光的多个发光元件14以直线形式布置，并且包含由来自光源的光激发的磷光体25a等的密封树脂30 在每个发光元件14的顶部，发光的模制成圆顶形，发光元件14由密封树脂30互连，以此形成发光模块。由于这种结构，密封树脂与发光元件的厚度基本相同，所以密封树脂的表面上出现的与发光元件的距离之间的明暗部分之间的差异减小了，模块表面的亮度不均匀也是如此。由于来自荧光体的光被辐射到密封树脂的外部而不会在边界面上被完全反射，所以提高了光提取效率。可以减少使用的密封树脂的量，因此可以减少模块的产品成本。版权所有（C）2013，JPO＆INPIT

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