在1W白光LED的进步产生更高的效率

　　在1W白光LED的进步产生更高的效率

　　新一代的1 W型白光LED提供了改进的功能，转化为各种照明应用的更高的效率。它们结合了高光通量、降低正向电压和更低的热阻。所有这些特性都会影响LED寿命和LED亮度，总的性能比上一代产品更高。

　　这些新设备还具有改进的温度稳定性（这有助于简化热管理）和更小的封装尺寸，包括较低的高度配置文件，以提高设计灵活性。

　　LED制造商将组件技术的改进归因于芯片制造、荧光粉组合和封装等领域的增强。

　　Characteristics of 1-W emitters

　　Let’s start by defining 1 W emitters for general lighting applications. These are typically characterized by the industry as 350 mA/mm2 area. However， it is important to note that in some cases， 1 W （1 mm2） devices can be driven up to 2.5 W.

　　One example is OSRAM Opto Semiconductors‘ new-generation OSLON SSL LEDs， which are said to offer an efficiency increase of about 25 percent， together with higher temperature stability. This was partly achieved through the use of a new phosphor system to improve conversion efficiency of the light output and color stability over temperature.