effective aperture

简明释义

有效孔径

英英释义

例句

1.In microscopy, the effective aperture 有效孔径 affects the resolution of the image significantly.

在显微镜学中，有效孔径 有效孔径 显著影响图像的分辨率。

2.In optical systems, the effective aperture 有效孔径 influences the amount of aberration present.

在光学系统中，有效孔径 有效孔径 影响存在的像差量。

3.The effective aperture 有效孔径 of a telescope is crucial for observing faint celestial objects.

望远镜的有效孔径 有效孔径 对于观察微弱的天体至关重要。

4.Adjusting the effective aperture 有效孔径 can help in controlling the depth of field in photography.

调整有效孔径 有效孔径 可以帮助控制摄影中的景深。

5.The camera's effective aperture 有效孔径 determines how much light is allowed to hit the sensor.

相机的有效孔径 有效孔径 决定了多少光线能够照射到传感器上。

作文

The concept of effective aperture plays a crucial role in various fields, particularly in optics and photography. To understand this term better, we must first break down its components. The word 'aperture' refers to an opening or a hole that allows light to pass through. In cameras, for instance, the aperture is the adjustable opening that controls the amount of light entering the lens. However, the term effective aperture goes a step further by considering not just the size of the opening but also the quality of light that reaches the sensor or film. This is essential because it affects the exposure and depth of field in photographs.In photography, the effective aperture is influenced by several factors, including the lens design, the focal length, and the distance between the subject and the camera. A larger aperture (represented by a smaller f-number) allows more light to enter, resulting in a brighter image. However, if the lens is poorly designed, the light may not be evenly distributed across the frame, leading to vignetting or uneven exposure. Therefore, understanding the effective aperture helps photographers make informed decisions about their equipment and settings.In addition to photography, the concept of effective aperture is also vital in scientific fields such as astronomy and microscopy. In these disciplines, the effective aperture determines how much light can be gathered by telescopes or microscopes, directly impacting the clarity and detail of the images produced. For astronomers, a larger effective aperture means collecting more light from distant celestial objects, allowing for clearer observations of stars, galaxies, and other astronomical phenomena.Moreover, the effective aperture can vary depending on the wavelength of light being observed. Different wavelengths may interact differently with the optical system, affecting the overall performance. For instance, infrared light may require a different effective aperture than visible light to achieve optimal results. This consideration is crucial for researchers and engineers working on advanced imaging systems.In conclusion, the term effective aperture encompasses more than just the physical size of an opening. It signifies the actual performance of an optical system in terms of light transmission and image quality. Whether in photography, astronomy, or microscopy, understanding the effective aperture is essential for achieving desired results. By grasping this concept, individuals can enhance their skills in capturing images or conducting scientific observations, ultimately leading to a deeper appreciation of the intricate relationship between light and optics.

有效孔径的概念在多个领域中发挥着关键作用，尤其是在光学和摄影中。要更好地理解这个术语，我们必须先分解它的组成部分。‘孔径’一词指的是允许光线通过的开口或孔。在相机中，例如，孔径是一个可调节的开口，控制进入镜头的光线量。然而，‘有效孔径’这一术语进一步考虑的不仅仅是开口的大小，还包括到达传感器或胶卷的光质量。这一点至关重要，因为它影响到照片的曝光和景深。在摄影中，‘有效孔径’受到多个因素的影响，包括镜头设计、焦距以及拍摄对象与相机之间的距离。较大的孔径（用较小的f值表示）允许更多的光线进入，从而产生更明亮的图像。然而，如果镜头设计不良，光线可能不会均匀分布在整个画面上，导致暗角或不均匀曝光。因此，理解‘有效孔径’可以帮助摄影师对他们的设备和设置做出明智的决策。除了摄影，‘有效孔径’的概念在天文学和显微镜等科学领域也至关重要。在这些学科中，‘有效孔径’决定了望远镜或显微镜能够收集多少光线，直接影响所生成图像的清晰度和细节。对于天文学家来说，较大的‘有效孔径’意味着可以从遥远的天体收集更多光线，从而清晰观察星星、星系和其他天文现象。此外，‘有效孔径’可能会因观察光的波长而异。不同的波长可能会以不同的方式与光学系统相互作用，从而影响整体性能。例如，红外光可能需要不同的‘有效孔径’才能获得最佳效果。对于从事先进成像系统研究和工程的研究人员和工程师来说，这种考虑至关重要。总之，‘有效孔径’这一术语不仅仅包含开口的物理大小。它代表了光学系统在光传输和图像质量方面的实际性能。无论是在摄影、天文学还是显微镜中，理解‘有效孔径’对于实现期望结果至关重要。通过掌握这一概念，个人可以提高捕捉图像或进行科学观察的技能，最终更深入地欣赏光与光学之间复杂的关系。