telescopic objective

简明释义

望远物镜

英英释义

例句

1.He cleaned the telescopic objective carefully to ensure no dust would obstruct his view.

他小心翼翼地清洁望远镜物镜，以确保没有灰尘会阻碍他的视野。

2.During the night sky observation, the telescopic objective helped us identify several constellations.

在夜空观察期间，望远镜物镜帮助我们识别了几个星座。

3.The scientist adjusted the telescopic objective to get a clearer view of the distant star.

科学家调整了望远镜物镜以更清晰地观察遥远的星星。

4.The quality of the telescopic objective determines how well you can see celestial bodies.

望远镜物镜的质量决定了你能多清楚地看到天体。

5.In this telescope, the telescopic objective plays a crucial role in magnifying the image.

在这台望远镜中，望远镜物镜在放大图像方面起着至关重要的作用。

作文

The universe has always fascinated humankind, and our quest to understand it has led to the creation of various tools and instruments. One such instrument that plays a crucial role in astronomical observations is the telescope. Within the realm of telescopes, the term telescopic objective refers to the primary lens or mirror that gathers light from distant celestial objects and brings it to a focus. This component is essential for determining the telescope's overall performance and image quality. The telescopic objective is often made from high-quality glass and is designed with precision to minimize optical aberrations, which can distort the images we observe. The larger the diameter of the objective lens or mirror, the more light it can collect, allowing astronomers to see fainter objects in the night sky. This is why many professional telescopes feature large telescopic objectives, sometimes exceeding several meters in diameter. In amateur astronomy, the choice of a telescope often hinges on the specifications of the telescopic objective. For instance, a beginner might choose a telescope with a smaller telescopic objective for ease of use and portability, while advanced users may invest in larger models to explore deep-sky objects like galaxies and nebulae. The design of the telescopic objective also affects the field of view and magnification capabilities of the telescope, making it a vital aspect to consider when selecting an instrument for stargazing.Moreover, the advancements in technology have led to the development of various types of telescopic objectives. Refracting telescopes utilize glass lenses, while reflecting telescopes employ mirrors. Each type has its unique advantages and disadvantages. For example, refractors tend to provide clearer images with better color fidelity, but they can be heavier and more expensive due to the quality of glass required. Reflectors, on the other hand, are generally more affordable and can achieve larger sizes, making them popular among both amateurs and professionals.In addition to their practical applications, telescopic objectives also hold significant historical importance. The first telescopes, invented in the early 17th century, used simple glass lenses as objectives. These early designs paved the way for groundbreaking discoveries, such as Galileo's observation of Jupiter's moons and the detailed study of Saturn's rings. As optics improved, so did our understanding of the cosmos, leading to the modern era of astronomy.Today, the telescopic objective remains at the forefront of astronomical research. With the advent of space telescopes like Hubble, the telescopic objective has evolved beyond terrestrial limitations, allowing us to capture stunning images of distant galaxies and phenomena. These advancements have opened new frontiers in our understanding of the universe, revealing insights into its origins, structure, and fate.In conclusion, the telescopic objective is not just a mere component of a telescope; it is the gateway through which we explore the vastness of the universe. Its design, size, and quality significantly impact our ability to observe and understand celestial wonders. As technology continues to advance, the telescopic objective will undoubtedly play a pivotal role in the future of astronomical exploration, enabling us to uncover the mysteries that lie beyond our planet. In summary, the telescopic objective (望远镜物镜) is a fundamental part of any telescope, critical for gathering light and forming images of distant stars and galaxies. Understanding its role and significance helps us appreciate the marvels of the universe and the tools we use to study them.

宇宙一直以来都吸引着人类的注意，而我们理解宇宙的追求促使我们创造了各种工具和仪器。其中一种在天文观测中发挥着关键作用的仪器就是望远镜。在望远镜的领域中，术语telescopic objective（望远镜物镜）指的是收集来自遥远天体的光并将其聚焦的主要透镜或镜子。这个组件对于确定望远镜的整体性能和图像质量至关重要。telescopic objective（望远镜物镜）通常由高质量的玻璃制成，并经过精确设计，以最小化光学像差，这些像差可能会扭曲我们观察到的图像。物镜的直径越大，它能够收集的光线就越多，从而使天文学家能够看到夜空中更微弱的天体。这就是为什么许多专业望远镜配备大型telescopic objectives（望远镜物镜），有时直径超过几米。在业余天文学中，望远镜的选择往往取决于telescopic objective（望远镜物镜）的规格。例如，初学者可能会选择一个具有较小telescopic objective（望远镜物镜）的望远镜，以便于使用和携带，而高级用户可能会投资于更大型的模型，以探索深空天体，如星系和星云。telescopic objective（望远镜物镜）的设计也影响望远镜的视场和放大能力，使其成为选择观星工具时必须考虑的重要方面。此外，技术的进步导致了各种类型的telescopic objectives（望远镜物镜）的发展。折射望远镜使用玻璃透镜，而反射望远镜则采用镜子。每种类型都有其独特的优缺点。例如，折射望远镜通常提供更清晰的图像和更好的色彩保真度，但由于所需玻璃的质量，它们可能更重且更昂贵。而反射望远镜则通常更实惠，并且可以达到更大的尺寸，使其在业余爱好者和专业人士中都很受欢迎。除了它们的实际应用外，telescopic objectives（望远镜物镜）还具有重要的历史意义。17世纪初发明的第一批望远镜使用简单的玻璃透镜作为物镜。这些早期的设计为开创性的发现铺平了道路，例如伽利略对木星卫星的观察以及对土星环的详细研究。随着光学技术的改进，我们对宇宙的理解也不断加深，导致现代天文学的出现。今天，telescopic objective（望远镜物镜）仍然处于天文研究的前沿。随着哈勃等空间望远镜的出现，telescopic objective（望远镜物镜）超越了地球的限制，使我们能够捕捉遥远星系和现象的惊人图像。这些进展为我们理解宇宙打开了新的前沿，揭示了其起源、结构和命运的见解。总之，telescopic objective（望远镜物镜）不仅仅是望远镜的一个组件；它是我们探索宇宙浩瀚的入口。它的设计、大小和质量显著影响我们观察和理解天体奇观的能力。随着技术的不断进步，telescopic objective（望远镜物镜）无疑将在未来的天文探索中发挥关键作用，使我们能够揭示隐藏在我们星球之外的奥秘。总之，telescopic objective（望远镜物镜）是任何望远镜的基本部分，对于收集光线和形成遥远星星和星系的图像至关重要。理解其角色和重要性有助于我们欣赏宇宙的奇迹以及我们用来研究这些奇迹的工具。