LED灯中英文介绍

LED灯产品特性

50年前人们已经已经了解半导体材料可产生光线的基本知识，第一个商用二极管产生于1960年。LED是英文light emitting diode（发光二极管）的缩写，他的几本结构是一块电致发光的半导体材料，置于一个有引线的架子上，然后四周用环氧树脂密封，祈祷保护内部芯绒的作用，所以LED灯的抗震性能好。

有点：

1.安全：LED灯使用低压电源，所以它是一个比使用高压电源更安全的电源，特别适用于

公共场所。

2.节能：消耗能量较同光效的白炽灯减少80%

3.适用性：适用方便，每个单元LED小片是3-5mm的正方形，所以可以制备成各种形状

的器件，并且适用于易变的环境。

4.稳定性：10万小时，光衰为初始的50%。

5.响应时间：白炽灯的响应时间我饿哦毫秒级，LED灯的响应时间为纳秒级。

6.环保：无有害金属汞

7.颜色：改变电流可以变色，发光二极管方便地通过化学修饰方法，调整材料的能带结构

的带隙，实现红黄绿蓝橙多色发光。如小电流时为红色的LED，随着电流的增加。可以一次变为橙色，黄色，最后为绿色。

8.寿命：LED的使用寿命远远高于白炽灯，是普通白炽灯的数十倍。

The Characteristics of LED illumination

Fifty years ago,the huminality had already known the basic knowledge of semiconductor material can produce light，The first commercial diode produced in 1960.LED is short for light emitting diode(LED),its basic structure is an electroluminescent semiconductor material，placed on the a stand with down-lead，and then sealed with epoxy resin around in order to protect internal batteries，so the aseismatic capability of LED is good。

The advantages of LED illumination

1.Security：LED is supplied by low-voltage power，so it is safer than supplied by high voltage

power,it is particularly applicable to public.

2.Economy:compared with the incandescence lamp the energy consumption reduces 80%

3.Applicability:convenient apply,each unit of LED snippet is 3-5mm square,it can be prepared

into various shaped devices,and suitable for the inconstant environment.

4.Stability:it can work 100000 hours,the light decay is 50 percent of the initial.

5.Response time:fincandescence lamps base on millisecond,the LED base on nanosecond.

6.Environment protection:no harmful metal mercury.

7.Color:changing the electric can change the color,the light_emitting diode easily adjust the

energy band structure and the band gap through chemical modification,adjustment of the energy band structure and the band gap and achieve multicolor luminescence.For example,with small current at the LED is red,but with the current increase,it will turn into orange,yellow.and green finally.

8.Life-span:the expectancy of LED is more than incandescence lamp,it is more than ten times as

an ordinary incandescence lamp.