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    • 3. 发明申请
    • LIGHTING UNIT AND THERMAL MANAGEMENT SYSTEM AND METHOD THEREFOR
    • 照明单位及其管理制度及方法
    • WO2009095817A1
    • 2009-08-06
    • PCT/IB2009/050225
    • 2009-01-21
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.ASHDOWN, Ian Edward
    • ASHDOWN, Ian Edward
    • H05B33/08
    • H05B33/0872H05B33/0818H05B33/0869
    • Disclosed is a thermal management system for a lighting unit (1000) including a light source (1004), wherein the thermal management system includes a converting element (1020) configured and disposed to absorb at least some of the light generated by the light source (1004) and emit converted light in response thereto, wherein the intensity of the converted light decays in accordance with a temperature dependent characteristic of said converting element (1020). The system further includes a sensing element (1006) configured to sense a first intensity of the converted light, and one or more subsequent decreased intensities thereof during an off-state of said light source (1004). The system is configured to determine, based at least in part on first intensity and the one or more subsequent intensities, a value indicative of an operating temperature of the light source (1004).
    • 公开了一种用于包括光源(1004)的照明单元(1000)的热管理系统,其中热管理系统包括被配置和设置成吸收由光源产生的光的至少一部分的转换元件(1020) 1004)并响应于此发射转换的光,其中转换光的强度根据所述转换元件(1020)的温度依赖特性而衰减。 该系统还包括感测元件(1006),其被配置为在所述光源(1004)的关闭状态期间感测转换的光的第一强度和一个或多个随后的降低的强度。 系统被配置为至少部分地基于第一强度和一个或多个后续强度来确定指示光源(1004)的操作温度的值。