fluorescent screen

简明释义

荧光膜

英英释义

例句

1.The old television used a fluorescent screen to display images.

这台旧电视使用了一个荧光屏来显示图像。

2.The fluorescent screen in the projector provided vibrant colors during the presentation.

投影仪中的荧光屏在演示过程中提供了鲜艳的色彩。

3.The computer monitor was upgraded to a more efficient fluorescent screen.

电脑显示器升级到了更高效的荧光屏。

4.Scientists often use a fluorescent screen for experiments involving light emission.

科学家们经常使用荧光屏进行涉及光发射的实验。

5.In the lab, we observed the reaction under a fluorescent screen to analyze the results.

在实验室，我们在荧光屏下观察反应以分析结果。

作文

In the world of technology, various components play crucial roles in the functioning of devices we use daily. One such component is the fluorescent screen, which has been pivotal in the evolution of display technologies. A fluorescent screen is a surface that emits light when it is struck by electrons. This phenomenon occurs due to the fluorescence effect, where certain materials emit light upon being energized. Initially used in older television sets and computer monitors, fluorescent screens have paved the way for modern display technologies, including LED and LCD screens.The operation of a fluorescent screen is based on the principles of cathode ray tubes (CRT). In a CRT, an electron gun generates a stream of electrons that are directed towards the screen. The inside of the screen is coated with phosphorescent materials that glow when hit by these electrons. This glowing effect creates images and videos that we see on our screens. Understanding how a fluorescent screen works helps us appreciate the advancements in display technologies that have occurred over the years.One of the significant advantages of fluorescent screens is their ability to produce bright and vivid colors. The phosphors used in these screens can be mixed to create a wide spectrum of colors, making them suitable for various applications, from entertainment to scientific visualization. However, as technology progressed, the limitations of fluorescent screens became apparent. They were bulky, consumed more power, and had lower resolution compared to newer technologies.As a result, manufacturers started transitioning from fluorescent screens to flat-panel displays, which are lighter and more energy-efficient. Technologies like Liquid Crystal Display (LCD) and Light Emitting Diode (LED) screens have taken over, offering higher resolutions and better color accuracy. Despite this shift, the impact of fluorescent screens on the development of visual technology cannot be understated. They laid the groundwork for the innovations we see today.Moreover, the legacy of fluorescent screens continues in specific applications. For instance, they are still used in some medical imaging devices and scientific equipment where high brightness and color fidelity are necessary. This demonstrates that while technology evolves, the foundational concepts remain relevant.In conclusion, the fluorescent screen has played an essential role in shaping the landscape of display technology. Its unique properties and functionality allowed for the creation of vivid images and contributed to the development of subsequent technologies. As we move forward into an era dominated by advanced displays, it is important to acknowledge the contributions of earlier technologies like the fluorescent screen. Understanding its significance not only enriches our knowledge of technological evolution but also prepares us for future innovations in the field of visual displays.

在科技的世界中，各种组件在我们日常使用的设备的运作中扮演着至关重要的角色。其中一个组件就是荧光屏，它在显示技术的发展中起到了关键作用。荧光屏是指当受到电子撞击时会发出光的表面。这一现象是由于荧光效应的发生，某些材料在被激励后会发光。最初，荧光屏用于旧式电视机和计算机显示器，为现代显示技术（包括LED和LCD屏幕）铺平了道路。荧光屏的工作原理基于阴极射线管（CRT）的原理。在CRT中，电子枪产生一束电子流，并将其导向屏幕。屏幕内部涂有磷光材料，这些材料在电子撞击时会发光。这种发光效果创造了我们在屏幕上看到的图像和视频。理解荧光屏的工作原理有助于我们欣赏近年来显示技术的进步。荧光屏的一个显著优点是能够产生明亮而生动的颜色。这些屏幕中使用的磷光体可以混合以创建广泛的颜色谱，使其适用于各种应用，从娱乐到科学可视化。然而，随着技术的发展，荧光屏的局限性逐渐显露出来。它们体积庞大，能耗较高，分辨率较低，与新技术相比存在不足。因此，制造商开始从荧光屏转向平板显示器，这些显示器更轻、更节能。液晶显示（LCD）和发光二极管（LED）屏幕等技术已接管市场，提供更高的分辨率和更好的色彩准确性。尽管这种转变发生，但荧光屏对视觉技术发展的影响不容小觑。它们为我们今天所见的创新奠定了基础。此外，荧光屏的遗产在某些特定应用中仍然存在。例如，它们仍然用于一些医疗成像设备和科学仪器，这些设备需要高亮度和色彩保真度。这表明，尽管技术在不断发展，但基础概念依然相关。总之，荧光屏在塑造显示技术的格局中发挥了重要作用。其独特的特性和功能使得生动的图像得以创造，并促进了后续技术的发展。随着我们进入一个由先进显示器主导的时代，重要的是要承认早期技术如荧光屏的贡献。理解其重要性不仅丰富了我们对技术演变的知识，也为我们在视觉显示领域的未来创新做好了准备。