Cree发布XLamp® XM，2A电流下光通量750lm
350mA下冷白XM光效160lm/W，2A下光通量750lm，光效110lm/W（可以算出对应Vf=750/(2*110)=3.4V），热阻2度/W（散热性能比XP-G好100%，比XR-E好200%），2010年秋季量产。亮度媲美MC-E但光效高出50%的下一代小直想必已经或即将列入各大厂商的开发日程中了。
对应的3头手电，如果每个核心都工作在2A电流下，总光通量将达到2250lm，和SST90相当，但光效却比SST90高出50%。
http://www.cree.com/press/press_detail.asp?i=1271079100891
Cree Announces Revolutionary New LED Platform Delivering 160 Lumens per Watt
XLamp® XM LEDs Are Most Efficient Lighting-Class LEDs in the Industry
DURHAM, N.C., April 12, 2010 — Cree, Inc. (Nasdaq: CREE), a market leader in LED lighting, announces a breakthrough new lighting-class LED platform, the XLamp® XM LED. This new single chip LED delivers record-breaking efficacy of 160 lumens per watt at 350 mA. The LED also delivers 750 lumens at 2 A, which is equivalent to the light output of a 60 W incandescent light bulb at less than 7 watts.
“This new platform continues Cree’s well-established record of turning R&D innovations into products,” said Chuck Swoboda, Cree chairman and CEO. “We continue to set the pace for LED performance, establishing new benchmarks that make you wonder why anyone would consider last-century’s energy-wasting technology.”
A cool white XM LED driven at 350 mA can produce 160 lumens at 160 lumens per watt. The new platform has a larger footprint than Cree’s XP family and also offers the unique combination of very high efficacy at very high drive currents. At 2 A, an XM LED produces 750 lumens at 110 lumens per watt. The thermal resistance of the XM platform is 2 degrees C per watt— an industry-leading technology breakthrough and a 350 percent improvement over Cree’s flagship XLamp XP-E LED.
Samples of the XLamp XM LEDs are available for order with standard lead times and commercial availability is targeted for Fall 2010 LED发展的太快了~~ 是个好消息 坐等.................. 太棒了新目标出现了 LZ有图吗? 估计主要是改进了热阻，又增加了芯片面积。。。。 想看看，早日便宜上市 2A 750
2.8A会有多少啊 果然，今年会发布mce的升级型号 好消息~~发展真是迅速 貌似今天的新品特别的多，，如果明年我们能用上的话都算是幸运的了！！ 如果还是和 MC-E一样的 4核设计。。。 那就。。路过 上5头.... 上5头就有3500以上了，超过火狐。
看来暂时不要买手电了，等着新产品出来。 上5头就有3500以上了，超过火狐。
看来暂时不要买手电了，等着新产品出来。
ghosthd 发表于 2010-4-13 11:26 http://www.shoudian.org/images/common/back.gif
新产品永远都会有的 “This new single chip LED delivers record-breaking efficacy of 160 lumens per watt at 350 mA. The LED also delivers 750 lumens at 2 A, which is equivalent to the light output of a 60 W incandescent light bulb at less than 7 watts.”
单核心的？？