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LED FLASH RING SURROUNDING CAMERA LENS

机译:LED闪光灯环环绕相机镜头

摘要

A flash system for an electronic device includes a ring-shaped light guide having a central opening. A camera lens is positioned in or behind the opening. A first light emitting diode (“LED”) is mounted on a printed circuit board (“PCB”), and the LED and PCB are encapsulated by a molded light guide of the flash system. An identical LED and PCB are encapsulated at an opposite end of the molded light guide (i.e., 180 degrees away). The back surfaces of each PCB diffusively reflects light from the LED on the other PCB. Light extraction features on the light guide surface uniformly leak out light from the LEDs. The light emission profile of the light guide has a peak axially aligned with the central opening of the light guide and rolls off to the edge of the camera's field of view.
机译:用于电子设备的闪光灯系统包括具有中央开口的环形光导。摄像机镜头位于开口内或开口后。第一发光二极管(“ LED”)安装在印刷电路板(“ PCB”)上,并且LED和PCB被闪光灯系统的模制光导封装。相同的LED和PCB封装在模制光导的另一端(即180度)。每个PCB的背面漫反射来自另一个PCB上的LED的光。导光面上的光提取功能均匀地从LED漏出光。光导的发光轮廓具有一个与光导的中心开口轴向对齐的峰值,并滚落到相机视场的边缘。

著录项

  • 公开/公告号US2017307962A1

    专利类型

  • 公开/公告日2017-10-26

    原文格式PDF

  • 申请/专利权人 LUMILEDS LLC;

    申请/专利号US201715496892

  • 发明设计人 XUEQIN LIN;

    申请日2017-04-25

  • 分类号G03B15/05;F21K5/06;G03B15/03;G03B15/06;

  • 国家 US

  • 入库时间 2022-08-21 13:51:24

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