beam spreading

简明释义

束散

英英释义

例句

1.When using a projector, beam spreading can result in a less focused image on the screen.

使用投影仪时，光束扩散可能导致屏幕上的图像不够清晰。

2.Engineers must account for beam spreading when designing optical systems.

工程师在设计光学系统时必须考虑到光束扩散。

3.The laser pointer's beam spreading can affect the accuracy of the presentation.

激光指示器的光束扩散会影响演示的准确性。

4.In astronomy, beam spreading is crucial for understanding the light from distant stars.

在天文学中，光束扩散对于理解遥远星星的光非常重要。

5.The beam spreading in this flashlight makes it ideal for wide-area illumination.

这款手电筒的光束扩散使其非常适合广泛照明。

作文

In the field of optics, the phenomenon of beam spreading plays a crucial role in understanding how light behaves as it travels through different mediums. Beam spreading refers to the increase in the diameter of a light beam as it propagates away from its source. This effect can be observed in various applications, including laser technology, telecommunications, and even everyday lighting. Understanding beam spreading is essential for optimizing the performance of optical systems and ensuring that they function effectively in their intended environments.When a laser beam is emitted, it typically starts as a very narrow and focused point of light. However, as the beam moves further from the source, it begins to diverge or spread out. This divergence is influenced by several factors, including the wavelength of the light, the aperture size of the beam, and the distance from the source. For instance, a laser with a smaller wavelength will generally experience less beam spreading compared to one with a larger wavelength. Similarly, a wider aperture will produce a more divergent beam, leading to increased beam spreading over distance.The implications of beam spreading are significant in many technological applications. In telecommunications, for example, fiber optic cables rely on the principles of light propagation to transmit data over long distances. If the beam spreading is not properly accounted for, the signal can become too weak or distorted to be effectively received at the other end. Engineers must carefully calculate the expected beam spreading to ensure that the system can maintain a strong and clear signal throughout its range.In the realm of laser cutting and engraving, understanding beam spreading is equally important. The precision of the cut or engraving depends on the focus of the laser beam. If the beam spreading is excessive, it can lead to wider cuts than intended, resulting in a loss of detail and accuracy. Therefore, operators must adjust the focus and settings of the laser to minimize beam spreading and achieve the desired results.Moreover, beam spreading is also a consideration in the design of lighting systems. For instance, in architectural lighting, designers aim to create specific effects with light. If a light source spreads too much, it may wash out details or create uneven illumination. By understanding and controlling beam spreading, lighting designers can enhance the aesthetic appeal of a space while ensuring that it remains functional.In conclusion, beam spreading is a fundamental concept in optics that affects a wide range of applications. From telecommunications to laser technology and architectural lighting, the ability to control and predict beam spreading is essential for achieving optimal performance. As technology continues to advance, the understanding of beam spreading will remain a critical area of study, enabling innovations that enhance our interaction with light and its applications in our daily lives.

在光学领域，光束扩散现象在理解光在不同介质中传播的行为方面起着至关重要的作用。光束扩散是指光束从其源头传播时直径增加的现象。这个效果可以在激光技术、电信，甚至日常照明等各种应用中观察到。理解光束扩散对于优化光学系统的性能至关重要，以确保它们在预期环境中有效运行。当激光束发出时，它通常开始时是一个非常狭窄和集中的光点。然而，随着光束离开源头的距离增加，它开始发散或扩散。这种发散受到多个因素的影响，包括光的波长、光束的孔径大小以及与源头的距离。例如，具有较小波长的激光通常会经历较少的光束扩散，而具有较大波长的激光则会经历更多的光束扩散。同样，较宽的孔径会产生更发散的光束，从而导致在距离上增加的光束扩散。光束扩散的影响在许多技术应用中都是显著的。例如，在电信中，光纤电缆依赖于光传播的原理来在长距离内传输数据。如果没有正确考虑光束扩散，信号可能会变得过于微弱或失真，无法有效接收。因此，工程师必须仔细计算预期的光束扩散，以确保系统能够在其范围内保持强信号和清晰信号。在激光切割和雕刻领域，理解光束扩散同样重要。切割或雕刻的精度取决于激光束的聚焦。如果光束扩散过大，可能导致比预期更宽的切割，从而导致细节和准确性的丧失。因此，操作员必须调整激光的焦距和设置，以最小化光束扩散并实现所需的结果。此外，光束扩散在照明系统的设计中也是一个考虑因素。例如，在建筑照明中，设计师旨在用光创造特定的效果。如果光源扩散得太多，可能会冲淡细节或造成不均匀的照明。通过理解和控制光束扩散，照明设计师可以增强空间的美学吸引力，同时确保其功能性。总之，光束扩散是光学中的一个基本概念，影响着广泛的应用。从电信到激光技术再到建筑照明，控制和预测光束扩散的能力对于实现最佳性能至关重要。随着技术的不断进步，对光束扩散的理解将继续成为一个关键研究领域，使创新能够增强我们与光及其在日常生活中的应用的互动。