light emitting diode

简明释义

发光二极管

英英释义

A light emitting diode (LED) is a semiconductor device that emits light when an electric current passes through it.

发光二极管(LED)是一种半导体器件,当电流通过时会发出光。

例句

1.The new smartphone features a brilliant display using a light emitting diode 发光二极管 screen.

这款新智能手机采用了一个出色的显示屏,使用了发光二极管 light emitting diode屏幕。

2.Many modern televisions utilize light emitting diodes 发光二极管 for better energy efficiency.

许多现代电视利用发光二极管 light emitting diodes以提高能效。

3.In recent years, light emitting diodes 发光二极管 have become the standard for indoor lighting.

近年来,发光二极管 light emitting diodes已成为室内照明的标准。

4.The holiday decorations use light emitting diodes 发光二极管 to create vibrant colors and patterns.

节日装饰使用发光二极管 light emitting diodes来创造生动的颜色和图案。

5.The traffic lights in the city are now equipped with light emitting diodes 发光二极管 that last longer than traditional bulbs.

城市中的交通信号灯现在配备了发光二极管 light emitting diodes,比传统灯泡更耐用。

作文

In the world of modern technology, few inventions have revolutionized our daily lives as much as the light emitting diode. A light emitting diode (LED) is a semiconductor device that emits light when current flows through it. This simple yet effective concept has led to significant advancements in various fields, including lighting, displays, and even communication. The rise of the light emitting diode can be attributed to its energy efficiency, longevity, and versatility compared to traditional lighting technologies such as incandescent and fluorescent bulbs.One of the most remarkable advantages of the light emitting diode is its energy efficiency. Traditional light sources convert a large portion of energy into heat rather than light, resulting in wasted energy. In contrast, LEDs convert a higher percentage of electrical energy into visible light, making them far more efficient. According to studies, using light emitting diodes can reduce energy consumption by up to 80% compared to incandescent bulbs. This not only lowers electricity bills for consumers but also contributes to reducing carbon emissions, making LEDs an environmentally friendly choice.Moreover, the lifespan of a light emitting diode is significantly longer than that of conventional light sources. While an incandescent bulb may last around 1,000 hours, and a fluorescent bulb approximately 10,000 hours, a typical LED can last anywhere from 25,000 to 50,000 hours or more. This longevity means less frequent replacements, which not only saves money over time but also reduces waste. As sustainability becomes increasingly important in today’s society, the durability of light emitting diodes plays a crucial role in promoting eco-friendly practices.The versatility of the light emitting diode is another factor contributing to its popularity. LEDs are available in various colors and sizes, making them suitable for a wide range of applications. From residential lighting and automotive headlights to large-scale displays and street lighting, light emitting diodes can be found everywhere. Furthermore, their ability to be easily dimmed and controlled allows for customizable lighting solutions that can enhance the ambiance of any environment.In addition to their practical applications, light emitting diodes have also made significant impacts in the field of communication. Visible light communication (VLC) technology utilizes LEDs to transmit data through light signals. This innovative approach offers a new method of wireless communication that can complement existing technologies like Wi-Fi. By using light emitting diodes for data transmission, we can achieve faster speeds and greater security, opening doors to exciting possibilities in the future of connectivity.Despite these numerous benefits, there are still challenges associated with the widespread adoption of light emitting diodes. For instance, the initial cost of purchasing LED fixtures can be higher than traditional lighting options. However, considering their long-term savings and benefits, many consumers and businesses are beginning to see the value in investing in light emitting diodes.In conclusion, the light emitting diode represents a remarkable advancement in lighting technology. Its energy efficiency, longevity, versatility, and potential for communication make it an invaluable component of modern life. As we continue to embrace innovation and seek sustainable solutions, the light emitting diode will undoubtedly play a pivotal role in shaping the future of how we illuminate and connect with the world around us.

在现代技术的世界中,少有发明能像发光二极管一样彻底改变我们的日常生活。发光二极管(LED)是一种半导体设备,当电流通过时会发光。这个简单而有效的概念在照明、显示和甚至通信等多个领域带来了重大进步。发光二极管的崛起可以归因于其相较于传统照明技术(如白炽灯和荧光灯)的能效、耐用性和多功能性。发光二极管最显著的优点之一是其能效。传统光源将大量能量转化为热而不是光,从而导致能源浪费。相比之下,LED能将更高比例的电能转换为可见光,使其效率更高。研究表明,使用发光二极管可以将能耗减少高达80%,相比白炽灯。这不仅降低了消费者的电费,还帮助减少碳排放,使LED成为环保的选择。此外,发光二极管的使用寿命显著长于传统光源。虽然白炽灯的使用寿命约为1000小时,荧光灯约为10000小时,但典型的LED可以持续使用25000到50000小时或更长。这种耐用性意味着更少的更换频率,不仅节省了长期成本,还减少了废物。随着可持续性在当今社会变得越来越重要,发光二极管的耐用性在推动环保实践中发挥了关键作用。发光二极管的多功能性也是其受欢迎的另一个因素。LED有多种颜色和尺寸,适用于广泛的应用。从住宅照明和汽车前灯到大规模显示和街道照明,发光二极管无处不在。此外,它们易于调光和控制的能力使得可以定制的照明解决方案成为可能,增强了任何环境的氛围。除了实用应用外,发光二极管在通信领域也产生了重大影响。可见光通信(VLC)技术利用LED通过光信号传输数据。这种创新的方法提供了一种新的无线通信方式,可以补充现有的Wi-Fi技术。通过使用发光二极管进行数据传输,我们可以实现更快的速度和更高的安全性,为未来的连接开辟了令人兴奋的可能性。尽管有诸多好处,发光二极管的广泛采用仍面临一些挑战。例如,购买LED灯具的初始成本可能高于传统照明选项。然而,考虑到其长期的节省和好处,许多消费者和企业开始意识到投资发光二极管的价值。总之,发光二极管代表了照明技术的一项显著进步。其能效、耐用性、多功能性和通信潜力使其成为现代生活中不可或缺的组成部分。随着我们继续拥抱创新并寻求可持续解决方案,发光二极管无疑将在塑造我们照亮和与周围世界连接的未来中发挥重要作用。

相关单词

emitting

emitting详解:怎么读、什么意思、用法