公开(公告)号：US20100259182A1

公开(公告)日：2010-10-14

申请号：US12161812

申请日：2007-02-09

申请人： Kwong MAN ,  Ian ASHDOWN

发明人： Kwong MAN ,  Ian ASHDOWN

IPC分类号： H05B37/02

CPC分类号： H05B33/0872 ,  H05B33/0863 ,  H05B33/0869

摘要： The light source comprises one or more first light-emitting elements for generating light having a first wavelength range and one or more second light-emitting elements for generating light having a second wavelength range. The first light-emitting elements and second light-emitting elements are responsive to separate control signals provided thereto. A control system receives a signal representative of the operating temperature from one or more sensing devices and determines first and second control signals based on the desired colour of light and the operating temperature. The light emitted by the first and second light-emitting elements as a result of the received first and second control signals can be blended to substantially obtain the desired colour of light. The desired colour of light generated can thus be substantially independent of junction temperature induced changes in the operating characteristics of the light-emitting elements.

摘要翻译： 光源包括用于产生具有第一波长范围的光的一个或多个第一发光元件和用于产生具有第二波长范围的光的一个或多个第二发光元件。 第一发光元件和第二发光元件响应于提供给其的分离的控制信号。 控制系统从一个或多个感测装置接收表示工作温度的信号，并根据所需的光色和工作温度确定第一和第二控制信号。 作为接收到的第一和第二控制信号的结果，由第一和第二发光元件发射的光可以被混合以基本上获得期望的光的颜色。 所产生的所需光的颜色因此可以基本上与结温引起的发光元件的工作特性的变化无关。