it can be said to improve the luminous efficiency is also one of the main. reporter: how much manufacturing process will change? set the hole, then the yield will drop dramatically? osram: the addition of the setting hole of the process, the manufacturing process will increase. however, not all manufacturing processes special process using only the past, you can optimize the manufacturing process. hole depth, but hundreds of nm, depth and width is relatively small, it will not bring much impact on yield. q: please talk about plans for future applications. osram: ux: 3 version as thingan evolution, from the input high-current high-end blue led, white led and green led began to use. outside signs
to ensure the stability, the mining lamps cree we use the most famous source. 3.3 thermal design: the high-power led, the heat is a big problem. for example, a 10w white led if the photoelecic conversion efficiency of 20%, there 8w of power converted into heat, if additional heat measures, the high-power led of the device core temperature will increase rapidly, when the junction temperature (tj) increased by more than the maximum allowable temperature (usually 150 ), high-power led will be damaged by overheating. therefore, thermal design is our most important content, the following us were from the aluminum plate and radiator combination of both, to discuss the thermal design. 3.3.1 .outdoor signs
quantasol program includes several nano-sucture, in which two or more different alloys, so you can get to overcome the current problems in solar cell design is the synthesis of crystals; in addition, it can greatly improve the photovoltaic conversion efficiency. compared with the aditional gaas suctures, the nano-sucture can reduce the effective bandgap junction, it extended to the infrared region, absorption of a wider range of specum. the company in the thames valley, kingston has a r & d laboratories, last week, has just completed a financing worth 200 million euros, is now through to multi-junction solar devices, solar energy is committed to reducing cost of ownership.july 2, 2009.outdoor led signs