目标专利:1294有利于背后照明的LED广角发射透镜
专利公开号:CN101160670B
专利权人:皇家飞利浦电子股份有限公司
无效请求书提交日期:2026年
非显而易见性评估仅供参考,不构成法律建议。
| 编号 | 名称 |
|---|---|
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一种发光二极管(LED)结构,其包括具有中心轴的LED电路小片;以及相对于LED电路小片固定的透镜;该透镜使LED电路小片发出的光折射;从而使得峰值强度出现在偏离中心轴50-80度的范围内;并且使得沿着中心轴的强度在峰值强度的5%到33%之间;其中;该透镜包括密封LED电路小片的第一透镜;以及围绕该第一透镜和LED电路小片的辅透镜;该辅透镜具有在第一透镜与辅透镜之间形成空气间隙的中空部分;该间隙生成使光远离中心轴弯曲的折射界面。
根据权利要求1所述的结构,其中该峰值强度出现在偏离中心轴70-80度范围内。
根据权利要求1所述的结构,其中该峰值强度出现在偏离中心轴70-80度范围内;并且沿着中心轴的强度为峰值强度的5-15%。
根据权利要求1所述的结构,其中该辅透镜包括非球面外表面和非球面圆顶形内表面。
根据权利要求1所述的结构,其中该辅透镜包括具有用于减少中心轴附近的光强度的全内反射(TIR)部分的非球面外表面。
根据权利要求1所述的结构,其中该第一透镜为半球形。
根据权利要求1所述的结构,其中该第一透镜为直接模制在LED电路小片上的透镜并且密封了该LED电路小片。
根据权利要求1所述的结构,其中该间隙为圆顶形空气间隙。
根据权利要求1所述的结构,其中该第一透镜为硅树脂并且该辅透镜为塑料。
根据权利要求1所述的结构,进一步包括次级载具;其上安装了LED电路小片;印刷电路板;其上安装了次级载具;其中该透镜直接接触该印刷电路板;并且围绕该次级载具。
根据权利要求1所述的结构,进一步包括次级载具;其上安装了LED电路小片;印刷电路板;其上安装了次级载具;其中该透镜直接接触该次级载具并且围绕LED电路小片。
根据权利要求1所述的结构,其中该透镜具有模制在其表面中的模式;用于影响发光模式。
根据权利要求12所述的结构,其中该模式包括菲涅尔透镜;衍射光栅;二元模式;棱锥或者圆锥。
根据权利要求10所述的结构,其中该第一透镜为半球形。
根据权利要求10所述的结构,其中该第一透镜为直接模制在LED电路小片上的透镜;并且其密封该LED电路小片。