网站首页  英汉词典

请输入您要查询的英文单词：

　

单词 Automatic Focus
释义

Automatic Focus

英语例句库

Automatic focusing technicology for ob- jects of diverse height is one of the key point of acquisition of CCD image.

对各种不同高度被测物体的自动聚焦是图像采集识别系 统的关键之一。

原声例句
北师大版高中英语(必修4)

It has an automatic focus and flash, so you don't have to worry about anything.

它有自动聚焦和闪光，因此不必担心任何事。

成长的烦恼 第1季

Did I mention that the camera is self-winding? - - Ben. - And automatic focus?

本 -还能自动对焦是吗？

中文百科

自动对焦 Autofocus

（重定向自Automatic Focus）
佳能AF35M，主动式自动对焦
奥林巴斯E-3的侧剖图，反光镜箱下方即为传感器所在
Phase detectionIn each figure (not to scale), the purple circle represents the object to be focused on, the red and green lines represent light rays passing through apertures at the opposite sides of the lens, the yellow rectangle represents sensor arrays (one for each aperture), and the graph represents the intensity profile as seen by each sensor array.Figures 1 to 4 represent conditions where the lens is focused (1) too near, (2) correctly, (3) too far and (4) much too far. The phase difference between the two profiles can be used to determine which direction and how much to move the lens to achieve optimal focus.
Phase detection system: 7 - Optical system for focus detection; 8 - Image sensor; 30 - Plane of the vicinity of the exit pupil of the optical system for photography; 31, 32 - Pair of regions; 70 - Window; 71 - Visual field mask; 72 - Condenser lens; 73, 74 - Pair of apertures; 75 - Aperture mask; 76, 77 - Pair of reconverging lenses; 80, 81 - Pair of light receiving sections;

自动对焦（Auto Focus，有时简称AF）是指20世纪60年代发展起来的一种应用于照相机的技术。自动对焦是一个复杂的光电一体化过程。

英语百科

Autofocus 自动对焦

（重定向自Automatic Focus）
Phase detectionIn each figure (not to scale), the purple circle represents the object to be focused on, the red and green lines represent light rays passing through apertures at the opposite sides of the lens, the yellow rectangle represents sensor arrays (one for each aperture), and the graph represents the intensity profile as seen by each sensor array.Figures 1 to 4 represent conditions where the lens is focused (1) too near, (2) correctly, (3) too far and (4) much too far. The phase difference between the two profiles can be used to determine which direction and how much to move the lens to achieve optimal focus.
Phase detection system: 7 - Optical system for focus detection; 8 - Image sensor; 30 - Plane of the vicinity of the exit pupil of the optical system for photography; 31, 32 - Pair of regions; 70 - Window; 71 - Visual field mask; 72 - Condenser lens; 73, 74 - Pair of apertures; 75 - Aperture mask; 76, 77 - Pair of reconverging lenses; 80, 81 - Pair of light receiving sections;
佳能AF35M，主动式自动对焦

An autofocus (or AF) optical system uses a sensor, a control system and a motor or tunable optical element to focus on an automatically or manually selected point or area. An electronic rangefinder has a display instead of the motor; the adjustment of the optical system has to be done manually until indication. Autofocus methods are distinguished by their type as being either active, passive or hybrid variants.
随便看

　

英汉网英语在线翻译词典收录了3779314条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2024 encnc.com All Rights Reserved
更新时间：2025/6/17 13:16:21