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    System and method for providing color light sources in proximity to predetermined wavelength conversion structures
    1.
    发明授权
    System and method for providing color light sources in proximity to predetermined wavelength conversion structures 有权

    公开(公告)号：US10147850B1

    公开(公告)日：2018-12-04

    申请号：US14531545

    申请日：2014-11-03

    Applicant: Soraa, Inc.

    Inventor： Michael R. Krames ,  Troy Trottier ,  Frank M. Steranka ,  William D. Houck ,  Arpan Chakraborty

    IPC: H01L33/50 ,  H01L27/15 ,  H01L25/075 ,  F21K9/64 ,  F21Y113/13 ,  F21Y101/00

    Abstract: An optical device includes a light source with at least two radiation sources, and at least two layers of wavelength-modifying materials excited by the radiation sources that emit radiation in at least two predetermined wavelengths. Embodiments include a first plurality of n radiation sources configured to emit radiation at a first wavelength. The first plurality of radiation sources are in proximity to a second plurality of m of radiation sources configured to emit radiation at a second wavelength, the second wavelength being shorter than the first wavelength. The ratio between m and n is predetermined. The disclosed optical device also comprises at least two wavelength converting layers such that a first wavelength converting layer is configured to absorb a portion of radiation emitted by the second radiation sources, and a second wavelength converting layer configured to absorb a portion of radiation emitted by the second radiation sources.

    High temperature LED system using an AC power source
    5.
    发明授权
    High temperature LED system using an AC power source 有权
    高温LED系统采用交流电源

    公开(公告)号：US08896235B1

    公开(公告)日：2014-11-25

    申请号：US13973213

    申请日：2013-08-22

    Applicant: Soraa, Inc.

    Inventor： Frank Tin Chung Shum ,  Frank M. Steranka ,  Clifford Jue

    IPC: H05B37/02 ,  H05B33/08

    CPC classification number: H05B33/083 ,  H05B33/0824

    Abstract: An LED lighting system powered by an AC power source comprising a rectifier module configured to provide a rectified output to a first group of LED devices and a second group of LED devices electrically coupled to the first group of LED devices. A current monitor module electrically coupled to the first group and to the second group of LED devices is configured to determine a first current level using a drawn current level signal associated with the first group of LED devices and a second current level using a reference current level signal associated with the second group of LED devices. The current monitor module is electrically coupled to a temperature sensing module that is configured to generate at least one compensation factor based at least in part on a temperature. The compensation factor is used to control (directly or indirectly) current through the LED devices.

    Abstract translation: 由AC电源供电的LED照明系统包括整流器模块，该整流器模块被配置为向第一组LED器件提供整流输出，以及电耦合到第一组LED器件的第二组LED器件。 电耦合到第一组和第二组LED器件的电流监视器模块被配置为使用与第一组LED器件相关联的拉出的电流电平信号来确定第一电流电平，并且使用参考电流电平来确定第二电流电平 信号与第二组LED器件相关联。 电流监视器模块电耦合到温度感测模块，其被配置为至少部分地基于温度产生至少一个补偿因子。 补偿系数用于控制（直接或间接）通过LED器件的电流。

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