fresnel lantern

简明释义

屈折反光灯

英英释义

例句

1.The fresnel lantern has a unique lens design that allows it to focus light effectively.

这款菲涅尔灯具有独特的透镜设计，可以有效聚焦光线。

2.When hiking in the mountains, a fresnel lantern can be a reliable source of light.

在山中徒步旅行时，菲涅尔灯可以成为可靠的光源。

3.The lighthouse used a fresnel lantern to guide ships safely through the fog.

灯塔使用了一个菲涅尔灯来安全地引导船只穿过雾霭。

4.The museum displayed an antique fresnel lantern that was once used on a ship.

博物馆展出了一盏古老的菲涅尔灯，曾经在一艘船上使用过。

5.During our camping trip, we brought a fresnel lantern to provide bright light at night.

在我们的露营旅行中，我们带了一个菲涅尔灯来在夜间提供明亮的光线。

作文

The use of light in various forms has been a significant part of human history, particularly in navigation and safety. One notable invention that has greatly contributed to these fields is the fresnel lantern. A fresnel lantern is a type of lighting device that employs a special lens known as a Fresnel lens, which allows it to project light over long distances while using less energy than traditional lenses. This innovation was particularly useful for lighthouses and maritime navigation, where visibility is crucial for the safety of vessels at sea.The Fresnel lens was developed by the French physicist Augustin-Jean Fresnel in the early 19th century. His design revolutionized the way light could be focused and directed, making it possible to create smaller and lighter lenses without sacrificing brightness. This was especially important for lighthouses, which needed to emit powerful beams of light to guide ships safely along coastlines. The introduction of the fresnel lantern allowed for more efficient use of light, enhancing the effectiveness of these navigational aids.In addition to its application in lighthouses, the fresnel lantern has also found use in various other fields. For instance, in theater lighting, these lanterns are employed to create dramatic effects and highlight specific areas of a stage. The ability to focus light precisely allows for creative expression in performances, demonstrating the versatility of the fresnel lantern beyond its original maritime purpose.Moreover, the fresnel lantern has played a role in modern technology. Today, similar principles are applied in different types of optical devices, including projectors and cameras, where controlling light direction and intensity is essential. The continued relevance of the fresnel lantern highlights how historical inventions can evolve and find new applications in contemporary society.Understanding the significance of the fresnel lantern involves recognizing its impact on safety and navigation. Before its invention, ships relied on simpler forms of lighting, which were often inadequate for guiding them through treacherous waters. The fresnel lantern improved visibility and reduced the risk of accidents, ultimately saving countless lives over the years.In conclusion, the fresnel lantern is more than just a lighting device; it represents a critical advancement in the way we harness and utilize light. Its influence extends from maritime navigation to theatrical productions and modern optical technologies. By studying the fresnel lantern, we gain insight into the interplay between innovation and practical application, showcasing how a single invention can shape multiple aspects of human experience. As we continue to explore new frontiers in technology and design, the legacy of the fresnel lantern serves as a reminder of the importance of creativity and functionality in our quest for progress.

光的使用在历史上一直是人类的重要组成部分，尤其是在导航和安全领域。其中一个显著的发明就是菲涅尔灯笼。菲涅尔灯笼是一种利用特殊透镜（即菲涅尔透镜）来投射光线的照明设备，它可以在较少能量的情况下将光投射到较远的距离。这项创新对灯塔和海上导航尤为重要，因为在海上航行时，能见度对船只的安全至关重要。菲涅尔透镜由法国物理学家奥古斯丁-让·菲涅尔于19世纪初开发。他的设计彻底改变了光的聚焦和引导方式，使得可以制造出更小、更轻的透镜，而不会牺牲亮度。这对灯塔尤为重要，因为它们需要发出强大的光束来安全引导船只沿海岸航行。菲涅尔灯笼的引入提高了光的使用效率，增强了这些导航辅助设备的有效性。除了在灯塔中的应用，菲涅尔灯笼还在其他多个领域中找到了用途。例如，在剧院照明中，这些灯笼被用来创造戏剧效果并突出舞台的特定区域。精确聚焦光线的能力使得在演出中进行创造性表达成为可能，展示了菲涅尔灯笼超越其原始海事目的的多功能性。此外，菲涅尔灯笼在现代技术中也发挥了作用。如今，类似的原理被应用于不同类型的光学设备，包括投影仪和相机，其中控制光的方向和强度是至关重要的。菲涅尔灯笼的持续相关性突显了历史发明如何演变并在当代社会中找到新应用。理解菲涅尔灯笼的重要性需要认识到它对安全和导航的影响。在其发明之前，船只依赖于更简单的照明形式，这些形式往往不足以引导它们穿越危险水域。菲涅尔灯笼改善了能见度，减少了事故风险，最终多年来拯救了无数生命。总之，菲涅尔灯笼不仅仅是一种照明设备；它代表了我们利用光的方式的重要进步。它的影响从海上导航延伸到戏剧制作和现代光学技术。通过研究菲涅尔灯笼，我们可以深入了解创新与实际应用之间的相互作用，展示了单一发明如何塑造人类经验的多个方面。随着我们继续探索技术和设计的新前沿，菲涅尔灯笼的遗产提醒我们在追求进步的过程中创造力和功能性的重要性。