【LED的种类及特点】led灯种类

一、外文资料

The classification of LED

We call the LED knowledge is a general term, actually with LED in the 60 years after the import business, after several years of development has been the development of many types, types of the mainstream.

(1) LED (Light emitting diode)

We call it the LAMP LED product, called P2 products, also called LED plug-in,anyway as long as it is to an in-line. And there are many kinds of LED type:

1) in colloidal form: 3mm, 4mm, 5mm, 8mm, 10mm, 12mm, square, oval,tombstone, and some special shape etc..

2) by colloid color: colorless transparent, colored transparent, colorless and colored scattering, scattering.

3) according to the color: red (red), orange (Orange), yellow (yellow), yellow green (green yellow), green (green), blue and green (blue green), blue (blue),purple (pink), ultraviolet (UV), white (white), infrared and so on.

(2) SMD (Surface mount device)

Surface mount diode or surface mount components is his name, the inside also has many categories:

1) according to the shape size: 0603, 0805, 1210, 5060, 1010 and so on, the general SMD is rhombic, so its name is according to the length * width size to call,industry use are inches, not mm, useful also mm called, as 1608 (1.6*0.8mm).

2) emitting light colors and colloidal species and LED products, only the product shape changed greatly.

(3) the fish (Flux LED)

This is because the LED luminous efficiency can not meet the requirement of automobile use, so we developed this product, is a small power products, and the drive current in general 50MA, general LED 20MA, the highest current can reach 70mA, because of its heat dissipation is better, in general used car taillight.

His classification is based on colloidal shape different points: there are 3mm,5mm, flat, and according to the top of the beads to meet different customer requirements of different angle etc.. You"re like 30, 50, 70, 120 etc..

(4) and high power (power LED)

This you may be familiar with, is now the industry with the most heat. All fall over each other also

replace the existing lighting products. Don"t know what it"s like to have a look:

1) according to power: 1W, 3W, 5W, etc..

2) according to a top emitting lens: flat, the shape of glass, etc..

3) according to the process and the aluminum substrate and anti luminous.

(5) the digital tube (Display)

This is the earliest you in to display and digital display.

1) according to the shape: 1, 2, 3, 4 etc..

2) surface color: gray black gum, also has the black glue etc..

3) polarity: Yin, yang.

4) color also like LED can do many kinds of.

(6) lattice (LED Dot Matrix)

We can know from the luminescence mechanism of LED device, the forward current to the LED device by a positive voltage when passing through the device makes the light. Therefore LED drive is to make it in the positively biased PN junction, and in order to control the luminous intensity, but also solve the problem of adjustment of the positive current. Driving mode specific DC drive, constant current drive, pulse drive and a scan driving, driving the LED device for DC drive mode

The characteristics of LED

LED through the PN node and the optical electrical conversion, its features are as follows.

(1).Energy saving.

LED has the characteristics of low voltage, low current, high pightness. The luminous efficiency than traditional 80%~90% energy-saving light source. Expected a few years later, the luminous efficiency of white LED could reach 150~200 LM now far exceeded other lighting luminous efficiency.

(2). Environmental protection .

LED cold light, glare, no radiation, does not produce harmful substances in use. LED environmental protection, no ultraviolet and infrared spectrum, and waste Recyclable, do not contain mercury, safe touch, belongs to the typical green lighting source.

(3). Long life

LED mono tube lifetime is 100000 hours, the light source life of 20000 hours or more, according to the daily work in 12h computing, life in 5years. While the ordinary incandescent lamp life is about 1000h, fluorescent lamp, metal halide lamp life is no more than 10000H.

(4) firm structure.

LED using solid semiconductor chip will be converted to electrical energy, and epoxy resin

package, body and no loose parts, there is no filament burn ability, thermal deposition, depreciation and other shortcomings, can withstand high strength mechanical shock.

(5)the color pure, variety.

LED spectra with narrow, good monochromaticity,almost all the light it can use, but no filter directly emit light. The LED light source can use red, green, blue three primary colors principle, in the control of computer technology makes the 3 colors with 256 gray level and arbitrary mixed, can produce 256x256x256 (16777216) colors, combined to form different colors. The combination of LED be the most changeful color, can realize the dynamic changes and a variety of rich and colorful images.

(6)safety.

LED light source with low driving voltage, light stability, without using stroboscopic phenomenon 50HZ alternating current power supply, no ultraviolet B radiation, Ra value close to 100, color temperature to 5000K, color temperature of 5500K close to the sun. Quantity of heat, low LED, and can accurately control the light type and light angle, light color and soft.

(7)rapid response.

LED response time is very short, can according to the requirements to ensure job switching between multiple light sources and a light source in different regions. The special power to the LED light source power supply, to achieve maximum illumination time is less than 10ms.

二、译文 LED 的分类

我们称之为LED 知识是一种通用术语，实际上与LED 在60年进口业务后，经过几年的发展已成为许多类型的发展，主流的类型。

（1）LED （发光二极管）

我们叫它灯的LED 产品，称为P2的产品，也被称为LED 插件，反正只要是一个在线。有许多种类型的LED ：

1）在胶体形式：3mm ，5mm ，4mm ，8mm ，10mm ，12mm ，方形，椭圆形，墓碑，和一些特殊的形状等。

2）按胶体颜色：有色的透明，无色透明，无色和有色散射，散射。

3）根据颜色：红色（红色），橙色（橙色），黄色（黄色），黄绿色（绿黄），绿色（绿），蓝绿（蓝绿），蓝（蓝色），紫色（粉红色），紫外线（UV ），白色（白色），红外和所以在。

（2）SMD （表面贴装器件）

表面贴装二极管或表面贴装元件是他的名字，里面也有许多类别：

1）根据外形尺寸：0603，0805，1210，5060，1010等，一般的SMD 是菱形的，所以它的名字是根据长×宽尺寸称，工业用英寸，不是毫米，也有用毫米称，为1608（1.6×0.8mm ）。

2）发光颜色和胶体的种类和LED 产品，只有产品的形状变化很大。

（3）鱼（通量LED ）

这是因为LED 发光效率不能满足汽车使用要求，因此我们开发这个产品，是小功率产品，和一般的50毫安驱动电流，一般LED 电流20mA ，最高可达70mA 的，因为它的散热比较好，一般用于汽车尾灯。

他的分类是基于胶体形状的不同点：有3mm ，5mm ，平，并根据珠上满足不同角度等不同的客户的要求。你像30，50，70，120等。

（4）和高功率（功率LED ）

这可能是你熟悉的，是目前最热的行业。都争先恐后也取代现有的照明产品。不知道是什么的，想看一看：

1）根据功率1W ，3W ，5W 等。

2）根据一个顶部发光的镜头，平，玻璃的形状等。

3）根据工艺和铝基板和抗发光。

（5）数码管（显示）

这是最早的你在显示和数字显示。

1）根据形状：1，2，3，4等。

2）表面颜色：灰黑胶，也有黑胶等。

3）极性：阴，阳。

4）颜色也如LED 可以做许多种。

（6）格（LED 点阵）

我们可以知道，从发光机理的LED 器件，正向电流的LED 装置由一个正电压时，通过装置使光。因此，LED 驱动器使它在正向偏置的PN 结，为了控制发光强度，也解决了正向电流的调整问题。驱动方式比直流驱动，恒流驱动，脉冲驱动和扫描驱动，直流驱动方式驱动LED 装置。

LED 的特性

LED 通过PN 结和光电转换，其特点如下。

（1）节能。

LED 具有低电压，低电流的特点，高亮度。发光效率比传统的80% ~ 90%节能光源。预计几年后，白色LED 发光效率可以达到150 ~ 200 LM现在远远超出其他照明发光效率。

（2）环境保护。

LED 冷光源，强光，无辐射，使用时不产生有害物质。LED 环保，无紫外线和红外光谱，和废物回收利用，不含汞，可以安全触摸，属于典型的绿色照明光源。

（3）寿命长

LED 单管寿命为100000小时，20000小时或更多的光源，根据在12h 计算日常工作，生活在5年。而普通白炽灯的寿命约为1000小时，荧光灯，金属卤化物灯的寿命不超过10000。

（4）结构坚固。

利用固体半导体芯片LED 将转换为电能，和环氧树脂封装，身体也没有松动的部分，没有灯丝烧性，热沉积，折旧和其他缺点，可承受高强度机械冲击。

（5）颜色纯正，品种。

LED 的光谱窄，单色性好，几乎所有的光，它可以使用，但不过滤直接发光。的LED 光源可利用红，绿，蓝三基色原理，在计算机技术的控制使3种颜色具有256灰度级和任意混合，可产生256x256x256（16777216）的色彩，组合成不同的颜色。结合LED 变化多端的色彩，可以实现各种丰富多彩的图像的动态变化。

（6）安全。

低驱动电压，LED 光源的光稳定性，无频闪现象，50Hz 的交流电源，无紫外线B 辐射，Ra 值接近100，色温为5000K ，靠近太阳的色温5500K 。LED 的热量低，数量，并能准确地控制光型发光角度，光的颜色和软。

（7）快速反应。

LED 响应时间很短，可根据要求确保任务的多个光源和光源之间的切换，在不同的地区。对LED 光源供电的特殊权力，以实现最大的照明时间小于10ms 。