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在"英语"词典里focal length}的意思

词典
词典
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英语中FOCAL LENGTH的发音

focal length play
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FOCAL LENGTH的语法类别

noun
形容词
动词
副词
代词
介词
连词
限定词
感叹词

FOCAL LENGTH在英语中的意思是什么?

点击查看«focal length»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

焦距

Focal length

光学系统的焦距是系统收敛或发散光强度的度量。 对于空气中的光学系统,将最初的准直光线引导到焦点的距离。 具有较短焦距的系统具有比具有长焦距的光焦度更大的光功率; 也就是说,它更强烈地弯曲光线,使它们在更短的距离中成为焦点。 在大多数摄影和所有望远镜中,拍摄对象基本上是无限远的地方,较长的焦距导致较高的放大倍率和较窄的视角; 相反地​​,更短的焦距或更高的光焦度与更宽的视角相关联。 另一方面,在通过使物体靠近透镜来实现放大倍率的显微镜的应用中,较短的焦距导致较高的放大倍率,因为被摄体可以靠近投射中心。 The focal length of an optical system is a measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long focal length; that is, it bends the rays more strongly, bringing them to a focus in a shorter distance. In most photography and all telescopy, where the subject is essentially infinitely far away, longer focal length leads to higher magnification and a narrower angle of view; conversely, shorter focal length or higher optical power is associated with a wider angle of view. On the other hand, in applications such as microscopy in which magnification is achieved by bringing the object close to the lens, a shorter focal length leads to higher magnification because the subject can be brought closer to the center of projection.

在英语 词典里focal length的定义

字典中焦距的定义是从镜头或镜子的焦点到镜子的反射表面或镜片的中心点的距离。

The definition of focal length in the dictionary is the distance from the focal point of a lens or mirror to the reflecting surface of the mirror or the centre point of the lens.

点击查看«focal length»在英语词典里的原始定义
点击查看在中文词典里此定义的自动翻译

FOCAL LENGTH一样开头的英语单词

focaccia
focal
focal distance
focal infection
focal plane
focal plane shutter
focal point
focal ratio
focalisation
focalise
focalization
focalize
focally
Foch
foci
focimeter
focometer
focus
focus group
focus puller

FOCAL LENGTH一样开头的英语单词

arm´s-length
at length
cable length
core strength
dress length
electric field strength
equivalent focal length
feature-length
field strength
from strength to strength
full-length
full-strength
in strength
knee-length
length
overlength
shoulder-length
strength
tensile strength
ultimate strength
wavelength

英语近义词词典里focal length的近义词和反义词

近义词

«focal length»的25种语言翻译

翻译者
online translator

FOCAL LENGTH的翻译

通过我们的英语多语言翻译器,找到focal length25种语言翻译
该章节所呈现的将focal length由 英语向其他语言的翻译是通过自动统计翻译获得的;在英语中基本的翻译单位是单词«focal length»。

翻译者英语 - 中文

焦距
1,325 数百万发言者

翻译者英语 - 西班牙语

longitud focal
570 数百万发言者

英语

focal length
510 数百万发言者

翻译者英语 - 印地语

फोकल लंबाई
380 数百万发言者
ar

翻译者英语 - 阿拉伯语

البعد البؤري
280 数百万发言者

翻译者英语 - 俄语

фокусное расстояние
278 数百万发言者

翻译者英语 - 葡萄牙语

distância focal
270 数百万发言者

翻译者英语 - 孟加拉语

ফোকাস দৈর্ঘ্য
260 数百万发言者

翻译者英语 - 法语

distance focale
220 数百万发言者

翻译者英语 - 马来语

Panjang fokus
190 数百万发言者

翻译者英语 - 德语

Brennweite
180 数百万发言者

翻译者英语 - 日语

焦点距離
130 数百万发言者

翻译者英语 - 韩语

초점 거리
85 数百万发言者

翻译者英语 - 印尼爪哇语

Dawa fokus
85 数百万发言者
vi

翻译者英语 - 越南语

Độ dài tiêu cự
80 数百万发言者

翻译者英语 - 泰米尔语

குவியத்தூரம்
75 数百万发言者

翻译者英语 - 马拉地语

केंद्रस्थ लांबी
75 数百万发言者

翻译者英语 - 土耳其语

odak uzaklığı
70 数百万发言者

翻译者英语 - 意大利语

focale
65 数百万发言者

翻译者英语 - 波兰语

długość ogniskowej
50 数百万发言者

翻译者英语 - 乌克兰语

фокусна відстань
40 数百万发言者

翻译者英语 - 罗马尼亚语

distanța focală
30 数百万发言者
el

翻译者英语 - 希腊语

εστιακή απόσταση
15 数百万发言者
af

翻译者英语 - 布尔语(南非荷兰语)

brandpunt
14 数百万发言者
sv

翻译者英语 - 瑞典语

brännvidd
10 数百万发言者
no

翻译者英语 - 挪威语

brennvidde
5 数百万发言者

focal length的使用趋势

趋势

词语 «FOCAL LENGTH»的使用趋势

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100%
频率
使用十分广泛
93
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此处所显示的地图给出了词语«focal length»在不同国家的使用频率。
focal length的主要搜索趋势和常见用法
用户为查找我们的英语在线词典以及单词«focal length»的最常用表达而进行的主要搜索的列表。

词语«FOCAL LENGTH» 随时间而变化的使用频率

该图表展现了单词«focal length»在过去500年中的用法频率的每年演化其实施是基于分析词语«focal length»从1500年到现在在 英语数字出版物中出现的频率。

focal length的英语文献、引用和新闻中的使用范例

示例

«FOCAL LENGTH»相关的英语书籍

在以下的参考文献中发现focal length的用法。与focal length相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Engineering Physics Theory And Experiments
... sources must be narrow. 15. Is there any loss of energy in interference ? Ans. There is no loss of energy but only it is redistributed. Experiment No. 3 Measurement of the focal length of the combination of two lenses separated by a distance.
S.K. Srivastava, 2006
2
Picture Composition for Film and Television
Peter Ward. Focal length Focal length of a single lens Single equivalent lens Principal point Focal length Focal length of a compound lens (b) Figure 4.2 (a) single element lens; (b) multi-element lens Figure 4.3 Depth-of-field: the three ...
Peter Ward, 2003
3
Panoramic Vision: Sensors, Theory, and Applications
on estimated focal length, and mismatch between the correct compositing length and expected compositing length. The first error (dLO) measures the consistency between the estimated focal length and the observed composite length.
Ryad Benosman, Sing Bing Kang, 2001
4
Competition Science Vision
Important Points (1) If two thin lenses of equal focal length but of opposite nature ( i.e., one convergent and other divergent) are put in contact, the resultant focal length of the combination will be: 1_ _ 1' _1 F* ~ f (- f)~ i.e., F = oo and P = 0 i.e., ...
5
Ray Optics
This book Ray Optics cover the syllabus of ray optics for most of the universities in India.
R. K. Verma, 2006
6
The Focal Encyclopedia of Photography
Anegative meniscus lenswill increase a lens' focal length; however, the lens' focusingsystem will require additional separation. Teleconverter Lens—An optical attachment that is inserted between the camera lensand bodytoincrease the focal ...
Michael R. Peres, 2014
7
PRINCIPLES OF PHYSICS
The focal length of (converging) combination is 7.2 cm. Find the separation of the lenses and positions of principal foci. 3. Two lenses having focal lengths /, = -10 cm and f2 = 15 cm are 5 cm apart. Calculate the focal length of the combination ...
P.V. NAIK, 2010
8
Photography: The Concise Guide
For a simple lens focused on an infinitely distant subject (stars make a good substitute), the distance between the center of the lens and the film or sensor is called the focal length of the lens, a fixed distance determined by the curvature of the ...
Bruce Warren, 2011
9
Course in Physics for iit Jee
These glasses are used in the manufacture of an achromatic objective of focal length 20 cm. What are the focal lengths of the two lenses of the objective? (a) 6.67 cm, - 10 cm (b) 7.5 cm, - 12.5 cm (c) 9.67 cm, - 15 cm (d) 12.5 cm, - 20 cm 22 .
Tmh
10
MCAT Practice Tests: Fourth Edition
Therefore, choice A must be correct. It lists the media in order of increasing indices of refraction; so the speed of light in the media will be in decreasing order . 2. B We are asked to determine the focal length of the eye's lens, in order to focus on ...
‎2004

包含词语«FOCAL LENGTH»的新条目

找出国内和国际出版社所讨论的内容,以及词语focal length在以下新条目的上下文中是如何使用的。
1
Nikon AF-S Nikkor 300mm f/4E PF ED VR
The Nikon AF-S Nikkor 300mm f/4E PF ED VR ($,1999.95) is noticeably smaller and lighter than other prime lenses of this focal length that ... «PC Magazine, 七月 15»
2
V-Coated Aspheric Lenses provide less than 0.25% reflection.
RoHS compliant TECHSPEC Best Form Aspheric Lenses are V-coated to provide <0.25% absolute reflection at the focal length specification ... «ThomasNet News, 七月 15»
3
Mariano Dallago's Camera Obscura creates a projected "postcard …
"A magnifying glass has been mounted on the front, and a sheet of translucent paper is placed on the focal length of the lens to display the ... «Dezeen, 七月 15»
4
Explanation of How Crop Factors and Depth of Field Correlate
In the same way that you figure out the focal length by multiplying by two, you divide the aperture by two in this case or multiply it. That is to say ... «The Phoblographer, 七月 15»
5
10.000 Km Movie Review: A Long Distance Relation Put to Test in …
The walls seem to be closing in on the characters, with the camera's focal length expanding as the isolation increases. Tena and Verdaguer are ... «Latin Post, 七月 15»
6
New Horizons Gets Ready For Its Pluto Close-up - Forbes
... aluminium – so that as the telescope shrinks, everything shrinks together, thereby retaining the same focal length,” Hardaway explained. «Forbes, 七月 15»
7
Meizu M1 Note review - The Times of India
The manual mode offers granular settings for ISO, focal length, shutter speed, and exposure compensation. Images captured by the camera in ... «Times of India, 七月 15»
8
Sophisticated instruments on New Horizons will study Pluto -
Focal length is maintained this way because everything shrinks together. To prevent Ralph from observing the Sun and damaging its detectors ... «The Space Reporter, 七月 15»
9
Canon Celebrates Production of 110 Million EF Lenses
The lens features a minimum focal length of 11mm for a wide angle view and uses Canon proprietary optical technologies to maintain image ... «TV Technology, 七月 15»
10
Zeiss Digital Smart Lens
... kept reflexively tensing my eyes as I looked at objects close-up through the glasses, even when the focal length was correct with the new lens ... «PC Magazine, 七月 15»

参考文献
« EDUCALINGO. Focal length [在线]. 可用 <https://educalingo.com/zh/dic-en/focal-length>. 五月 2024 ».
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