在1W白光LED的進步產生更高的效率

　　新一代的1 W型白光LED提供了改進的功能，轉化為各種照明應用的更高的效率。它們結合了高光通量、降低正向電壓和更低的熱阻。所有這些特性都會影響LED壽命和LED亮度，總的性能比上一代產品更高。

　　這些新設備還具有改進的溫度穩(wěn)定性（這有助于簡化熱管理）和更小的封裝尺寸，包括較低的高度配置文件，以提高設計靈活性。

　　LED制造商將組件技術的改進歸因于芯片制造、熒光粉組合和封裝等領域的增強。

　　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.