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发明公开
CN103403894A 发光模块、灯、照明器和显示装置 有权 转让

发光模块、灯、照明器和显示装置
摘要：
发光模块150通过光出射窗口104发射光并且包括基底110，固态发光体154、158和部分漫反射层102。基底110具有面向光出射窗口104的光反射表面112。光反射表面112具有由光反射表面反射的光的数量和投射在光反射表面上的光的数量之间的比例定义的基底反射系数Rbase。固态发光体154、156发射第一颜色范围114的光，包括顶表面152、158并且具有由固态发光体154、156反射的光的数量和投射在固态发光体154、156的顶表面152、158上的光的数量之间的比例定义的固态发光体反射系数R_SSL。光出射窗口104至少包括部分漫反射层102的一部分。固态发光体面积比例ρSSL被定义为至少一个固态发光体的顶表面的面积和基底的光反射表面的面积之间的比例。当Rbase>R_SSL+c*(1-R_SSL)并且因子c为：对于0 0.25，0.4≤c≤1时，获得相对高效的发光模块。
摘要（英）：

A light emitting module 150 emits light through a light exit window 104 and comprises a base 110, a solid state light emitter 154, 156 and a partially diffusive reflective layer 102. The base 110 has a light reflective surface 112 which faces towards the light exit window 104. The light reflective surface 112 has a base reflection coefficient Rbase which is defined by a ratio between the amount of light that is reflected by the light reflective surface and the amount of light that impinges on the light reflective surface. The solid state light emitter 154, 156 emits light of a first color range 114, comprises a top surface 152, 158 and has a solid state light emitter reflection coefficient R_SSL which is defined by a ratio between the amount of light that is reflected by the solid state emitter 154, 156 and the amount of light that impinges on the top surface 152, 158 of the solid state light emitter 154, 156. The light exit window 104 comprises at least a part of the partially diffusive reflective layer 102. A solid state light emitter area ratio rho SSL is defined as the ratio between the area of the top surface of the at least one solid state light emitter and the area of the light reflective surface of the base. A relatively efficient light emitting module is obtained if Rbase)R_SSL + c*(1 - R_SSL) and the factor c is 00.25 and 0.4 <=c<= 1.

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