短焦距鏡 的英文怎麼說

中文拼音 [duǎnjiāojùjìng]
短焦距鏡 英文
short focus mirror
  • 短 : Ⅰ形容詞（空間、時間兩端之間的距離小） short; brief Ⅱ動詞（缺少; 欠） lack; owe Ⅲ名詞1 （缺點） we...
  • 焦 : Ⅰ形容詞1 （物體受熱失去水分 呈現黃黑色並發硬、發脆） burnt; scorched; charred 2 （著急） worried;...
  • 距 : Ⅰ名詞1 （距離） distance 2 （雄雞、雉等的腿的後面突出像腳趾的部分） spur （of a cock etc ）Ⅱ動詞...
  • 鏡 : Ⅰ名詞1 （鏡子） looking glass; mirror 2 （幫助視力或做光學實驗的器具） lens; glass 3 （姓氏） a s...
  • 焦距 : [光學] focal distance; focal length
  1. If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array

    如果物鏡與光盤之間的距離短於物鏡的焦距，柱面透鏡就會使在光電探測器陣列上的成像變成橢圓影像。
  2. Spot diameters of just a few thousands of an inch can readily be attained with convenient short focal length lenses.

    用普通的短焦距透鏡不難得到直徑只有幾十微米的光點。
  3. The unfocused aspherical surface system is one of the main structure of large emiting system. in the system, the more large the relative aperture of primary mirror, the more small the focal length and the tube of system, and the more light the weigth

    這個系統中的主反射鏡的相對孔徑越大，其焦距就越短，相應地系統筒長就越短，重量就越輕，這樣就越能滿足車載或機載系統的實戰要求。
  4. When a larger waist w of the incident gaussian beam and a shorter focal length / of the lens are chosen, we can obtain an extremely - small dark spot size of the focused hollow beam, even approach the diffraction limit

    當選擇較大的入射準直高斯光束的束腰w _ 0和較短的薄透鏡焦距f時，可以在焦平面上產生一個很小的dss （或束半徑r _ 0 ） ，甚至可以接近衍射極限。
  5. For example, a photographer will choose a long - focal - length, or telephoto, lens to zoom in on a baseball pitcher to make his image large ; he will use a short - focal - length wide - angle, or “ fisheye, ” lens to zoom out, revealing the fans throughout the stadium

    例如攝影師會選擇長焦距的鏡頭，即遠距照相鏡，來拍攝棒球投手，使投手的影像放大；他會用短焦距的廣角鏡頭，甚至所謂的魚眼鏡頭，來拍出運動場周圍看臺上的球迷。
  6. But the implementation of traditional wfcs in an optical system is difficulty, so the applications is limited. in 2000, a novel wfcs comprising a distorted diffraction grating ( dgwfs ), simple optics and a single camera has been described by blanchard

    2000年， blanchard等提出了一種新型的波前曲率傳感器，它利用二次扭曲光柵和短焦距透鏡密接使用，來實現波前曲率測量。
  7. Numerical result illustrates that focal length becomes longer when incident wavelength becomes shorter, however the relationship between focal length and incident wavelength is n ' t absolute inverse ratio, it is that the increasing of focal length is faster than the decreasing of incident wavelength. at the same time the numerical result also show that scalar theory ca n ' t be used in the rigorous analysis of the dispersion property of subwavelength diffractive microlens

    然後研究了亞波長衍射微透鏡的色散特性，表明亞波長衍射微透鏡的焦距隨著波長變短而增加，但是波長與焦距之間並非簡單的完全反比例關系，而是隨著波長的減小焦距增加得更快，同時指出標量理論已不能準確分析亞波長衍射微透鏡的色散特性。
  8. People usually think that larger telescope will magnify the object more. the magnification is the ratio of the apparent sizes of the object. for example, if the angular size of the object is one arc minute and through a telescope, its apparent size becomes 30 arc minutes, then we say the magnification is 30

    很多人以為大型望遠鏡可以把天體放得更大，事實上望遠鏡要獲得很高的倍率是很容易的只要改用較短焦距的目鏡便可以了，但就算是大型望遠鏡，倍率也極少超過500倍，一般都只是使用100至200倍。
  9. Camera : 2mp, video record image capture with macro view, 8x digital zoom and pc webcam

    鏡頭： 2mp短片攝錄影像攝影，配合微距拍攝模式8x數碼變焦及pc網路攝影機
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