在1W白光LED的進(jìn)步產(chǎn)生更高的效率

　　新一代的1 W型白光LED提供了改進(jìn)的功能，轉(zhuǎn)化為各種照明應(yīng)用的更高的效率。它們結(jié)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(huì)影響LED壽命和LED亮度，總的性能比上一代產(chǎn)品更高。

　　這些新設(shè)備還具有改進(jìn)的溫度穩(wěn)定性（這有助于簡(jiǎn)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(shè)計(jì)靈活性。

　　LED制造商將組件技術(shù)的改進(jìn)歸因于芯片制造、熒光粉組合和封裝等領(lǐng)域的增強(qiáng)。

　　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.