aperture

简明释义

英[ˈæpətʃə(r)]美[ˈæpərtʃʊr]

n. 孔，穴；（照相机，望远镜等的）光圈，孔径；缝隙

复 数 a p e r t u r e s

英英释义

单词用法

同义词

反义词

例句

1.As you move onto the more expensive zoom lenses, they maintain a constant aperture.

当你继续研究比较昂贵的变焦镜头时，你会发现它们有着恒定的光圈。

2.For example, the maximum power on a 60mm telescope (2.4 "aperture) is 142x."

比如，孔径为60mm(即2.4英寸孔径)的望远镜最大放大率为142x。

3.It widened smoothly. Soon he'd made an aperture twenty-five centimeters across.

它顺利地变宽了，很快成了一个25公分的孔。

4.Through the aperture he could see daylight.

通过这个孔隙他能看到日光。

5.Set your camera to its lowest aperture value (completely open).

将你的相机光圈开到最慢（完全打开）。

6.The airy disk becomes smaller as you increase the aperture.

当你增加孔径的尺寸时，艾里斑会变小。

7.Adjusting the aperture can help achieve a shallow depth of field, making the background blur.

调整光圈可以帮助实现浅景深，使背景模糊。

8.The camera's aperture allows more light to enter, which is essential for low-light photography.

相机的光圈允许更多光线进入，这对于低光环境下的摄影至关重要。

9.The photographer used a wide aperture to capture the vibrant colors of the sunset.

摄影师使用了一个宽光圈来捕捉日落的鲜艳色彩。

10.When taking portraits, a larger aperture helps isolate the subject from the background.

拍摄人像时，较大的光圈有助于使主体与背景分离。

11.In astronomy, the size of the telescope's aperture determines how much light it can gather.

在天文学中，望远镜的光圈大小决定了它能收集多少光。

作文

The concept of aperture is fundamental in various fields, particularly in photography and optics. In photography, aperture refers to the opening in a camera lens that allows light to enter and reach the sensor or film. The size of this opening can significantly affect the exposure and depth of field in an image. A larger aperture (indicated by a smaller f-stop number) lets in more light, which is ideal for low-light conditions and creates a shallow depth of field, resulting in a beautifully blurred background. Conversely, a smaller aperture allows less light in, which can be useful in bright conditions and provides a greater depth of field, keeping more of the scene in focus.In addition to photography, aperture plays a crucial role in the science of optics. It is not just a term used in cameras; it is also applicable in telescopes and microscopes. For instance, in a telescope, the diameter of the aperture determines how much light the telescope can gather, which directly impacts the clarity and detail of the images of distant celestial objects. A larger aperture means more light, leading to brighter and clearer images, which is essential for astronomers who wish to observe faint stars or galaxies.Understanding aperture is also vital for anyone interested in the technical aspects of image creation. Photographers often experiment with different aperture settings to achieve specific artistic effects. For example, portrait photographers frequently use a wide aperture to isolate their subjects from the background, creating a pleasing bokeh effect. On the other hand, landscape photographers tend to choose a smaller aperture to ensure that both the foreground and background are sharp and in focus.Moreover, the concept of aperture extends beyond the physical realm into metaphorical applications. In literature and art, aperture can symbolize openings or gateways to new experiences and perspectives. Just as a camera’s aperture controls the amount of light that enters, the metaphorical aperture in our lives can determine how much we allow new ideas and experiences to influence us. By consciously choosing to widen our aperture, we can embrace change and foster personal growth.In conclusion, the term aperture encompasses a variety of meanings across different disciplines. Whether in photography, optics, or as a metaphor for personal openness, understanding aperture enhances our ability to appreciate the world around us. It reminds us of the importance of perspective, both literally and figuratively, urging us to adjust our aperture to capture the beauty and complexity of life in all its forms.

“光圈”这个概念在多个领域中都是基础，尤其是在摄影和光学方面。在摄影中，光圈指的是相机镜头中的开口，允许光线进入并到达传感器或胶卷。这个开口的大小会显著影响图像的曝光和景深。较大的光圈（由较小的f-stop数字表示）允许更多的光线进入，这在低光条件下是理想的，并且会产生浅景深，从而使背景模糊。相反，较小的光圈允许更少的光线进入，这在明亮的条件下非常有用，并提供更大的景深，使场景中的更多部分保持清晰。除了摄影，光圈在光学科学中也起着至关重要的作用。它不仅是相机中使用的术语；它在望远镜和显微镜中同样适用。例如，在望远镜中，光圈的直径决定了望远镜能够收集多少光，这直接影响到遥远天体图像的清晰度和细节。较大的光圈意味着更多的光线，从而导致更明亮、更清晰的图像，这对于希望观察微弱星星或星系的天文学家来说至关重要。理解光圈对任何对图像创作技术方面感兴趣的人来说也是至关重要的。摄影师经常尝试不同的光圈设置，以达到特定的艺术效果。例如，肖像摄影师通常使用宽光圈来将主体与背景隔离，创造出令人愉悦的虚化效果。另一方面，风景摄影师倾向于选择较小的光圈，以确保前景和背景都清晰可见。此外，光圈的概念超越了物理领域，延伸到隐喻的应用中。在文学和艺术中，光圈可以象征通往新体验和视角的开放或门户。就像相机的光圈控制着进入的光线量一样，我们生活中的隐喻光圈可以决定我们允许多少新思想和经历影响我们。通过自觉选择扩大我们的光圈，我们可以接受变化，促进个人成长。总之，术语光圈在不同学科中包含多种含义。无论是在摄影、光学，还是作为个人开放性的隐喻，理解光圈都增强了我们欣赏周围世界的能力。它提醒我们透视的重要性，无论是字面上还是比喻上，促使我们调整我们的光圈，以捕捉生活各个形式的美丽和复杂性。