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Another approach in enhancing the light extraction efficiency of AlGaInP LED was accomplished using a surface roughening process. In this process, the Au(170 nm)/AuBe(260 nm)/Au(170 nm) ohmic contact layers were first deposited on the GaP window layer. After the alloy annealing process (480°C for 10 min), the Be atoms will diffuse into the GaP top layer and form non-uniform clusters. The LED samples were then immersed into a mixture 3H3PO4:1H2O2:1H2O solution for 6 min, resulting in a rough GaP surface. The luminous intensity of the AlGaInP LED can increase from 42 to 50 mcd, that is, an 18% enhancement can be achieved via the present non-photolithography surface roughening process.Keywords: LED, AlGaInP, Cu substrate, Reflector, Surface roughening

在实验的第二部份是开发磷化镓窗口层之粗化制程，我们是藉由正面金/铍欧姆接触电极之熔合制程，使铍扩散至磷化镓层，同时利用铍渗入磷化镓造成之特殊组成，可形成不均匀之蚀刻阻挡，而在磷化镓表面形成粗化，我们发现480℃、10分钟的熔合制程，加上浸泡磷化镓蚀刻溶液6分钟，可将四元发光二极体之发光亮度由42 mcd 提升到50 mcd，经由此无光罩粗化制程可将亮度提升18%，明显提升磷化铝铟镓发光二极体之外部量子效率。

Our product family include the high power led units, led spotlights, grid lamp, street light, led downlight and Led grow light etc.For the time being , we cooperate with some Agricultural Universities and developed several items of high power LED Grow lights, they are very nice replacement for the HPS and MH lights.

公司产品包括照明灯系列，路灯系列和植物灯系列，广泛应用于机场、车站、商场、酒店、舞厅、饭店、家庭、橱窗等室内照明、装饰；公路、街道、庭院等室外照明；农场、植物培育室、种植大棚等植物生长照明，促进植物生长、延长花期及使果实增产。

The design of white LED array for illumination is proposed and prototyped.

中文摘要本论文研究并实现了用於照明灯具的高亮度白光LED阵列的设计。

Eatures · Compatible with MCS-51 Products · 2K Bytes of Reprogrammable Flash Memory – Endurance: 1,000 Write/Erase Cycles · 2.7V to 6V Operating Range · Fully Static Operation: 0 Hz to 24 MHz · Two-Level Program Memory Lock · 128 x 8-Bit Internal RAM · 15 Programmable I/O Lines · Two 16-Bit Timer/Counters · Six Interrupt Sources · Programmable Serial UART Channel · Direct LED Drive Outputs · On-Chip Analog Comparator · Low Power Idle and Power Down Modes Description The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with 2K Bytes of Flash programmable and erasable read only memory.

eatures ·兼容MCS - 51的产品·及2k字节的编程快闪记忆体-耐力： 1 000写/擦除周期·在2.7 V至6 V的操作范围·完全静态的运作： 0 Hz至24兆赫·两个层次的程式记忆体锁· 128 × 8位内部RAM · 15个可编程I / O线·两个16位定时器/计数器· 6中断源·可编程串行UART的频道·直接驱动LED产出·单晶片模拟比较·低功耗的闲置和掉电模式描述该AT89C2051的是一个低电压，高性能的CMOS 8位微机与及2k字节的Flash可编程和可擦除唯读记忆体。

Its terminal product is a digital camera|MP 3| MPs are 4| notebooks|move a correspondence equipments(cellular phone, Gao repeatedly corresponds by letter an equipments)|LED|LCD|DVD|calculator mother board|PDA|the car carries a LCD TV|family cinema(AC3 system)|satellite fixed position system etc. the consumption electronics product.

其终端产品为数码相机/MP3/MP4/笔记本电脑/移动通信设备/LED/LCD/DVD/计算机主机板/PDA/车载液晶电视/家庭影院(AC3系统)/卫星定位系统等消费性电子产品。

Appearance IdeaPad V450 and use the whole design, steady inward-looking, light weave texture top treatment, ability to handle and very good resistance to linear outline of the main fuselage section, simple smooth, the screen area aircraft using standard 14-inch widescreen LED screen above the built-摄象头of 1.3 million, in addition, it also supports the safe use of the face recognition function, a key to quiet mode, electrostatic induction multimedia touch operation, Entertainment Shuttle sound field control, Bluetooth and other rich attachments.

外观上IdeaPad V450运用全黑的设计，沉稳内敛，顶盖采用光织纹理处理，手感和抗压能力都非常出色，以直线条为主勾勒的机身，简洁流畅，屏幕方面，该机采用标准的14寸LED宽屏，屏幕上方内置130万的摄象头，此外，该机还支持安全易用的人脸识别功能，一键安静模式，静电感应式多媒体触控操作，娱乐飞梭音场控制，蓝牙等丰富的附件功能。

With more than 100 sets of mechanical equipment, the company has formed the annual production capacity of 500,000 camp steam stove, angry light, LED headlight, aluminium suits of pots.

拥有机械设备一百多台套，公司已形成年产量50万套野营气炉、气灯、LED头灯、铝套锅生产能力。

The principle and method of LED colum indication with specific controller 9504 and specific driver 3914 is discribed .

描述了使用专用控制器9504和专用驱动器3914实现LED条图显示的原理和实现方法。

In recent years, there is a large improvement on the luminous efficiency of LEDs. However, there are some problems in LED ESD protection.

近年来，氮化镓基LED在发光效率上有很大的进展，不过在静电防护上却还有很大的改善空间。

The picture shows Regensburg, Germany, where the coloured light column consists of LED units from Dialight.

图中所示为德国雷根斯堡市，彩色灯柱中就包含有Dialight公司的LED单元。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。