focus of lens 中文意思是什麼
focus of lens
解釋
透鏡的焦點-
Analysis showed this might be due to the fact that a black hole passed in front of the star. the gravitation of a black hole can function as a convex lens and focus starlight, resulting in transience increase of apparent brightness of the star
分析顯示，這很可能是因為有一個黑洞在恆星前面經過，黑洞的引力會聚了星光，就像凸透鏡把光線聚焦一樣，使恆星的視亮度增加。 -
This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal
本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析，理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。 -
To reduce the marking distortion, using the vertical 2 - dimension galvanometer distributing and f field lens focalize, the distance of the second galvanometer to the machining plane is the focus f. to avoid too hign temperature to distroy the resonance cavity because of too long marking time, cooling system and self - protector is used in the design
為減少打標畸變，採用垂直二維振鏡分佈， f物鏡聚焦，將激光束經第二個振鏡反射後到加工平面的距離為焦距f ，為了避免打標時間過長，溫度過高破壞諧振腔，在設計中加上冷卻系統和自我保護裝置。 -
When only allows the total internal reflection beams focus on the small aperture, which is formed at the center of metal film coated on the bottom of solid immersion lens, the optical fields propagated from the aperture of different dimension is first simulated
根據衍射超分辨原理首次模擬出了底面鍍有金屬膜、中心留有通光微孔的固體浸沒透鏡的出射光場分佈。 -
Long focus object lens of three color achromatic aberration is one of two posers of optical design, using this method can get a perfect result. compared with pw method, the first results received from the wave - deviation method are more accurate and more rapid
使用此數學模型編的光學自動設計程序，也可以說是光學鏡頭設計的一種新方法，即實現自動選玻璃，求解初始結構（曲率半徑r ，厚度d等）和自動校正像差和優化系統等。 -
The rear expounds the working principle of pick - up and the methods that are able to implement compatibility and fit high density disc. moreover a devise idea is put forward that hologram incorporates object lens that can adapt to the panasonic ' s double focus and give credible technologic guarantee and carry out product ' s simplification
後半部分對dvd的核心部分? ?激光頭的工作原理及其滿足高密度和兼容性要求的實現方法進行了詳細闡述，並提出了適應松下兩焦點光頭的全息板與物鏡一體化設計思想，為產品簡單化的追求提供了可靠的技術保證。 -
In a camera, light rays pass through a series of lenses that focus images onto film. in a healthy eye, light rays pass through the cornea and lens, which focuses images onto the retina, a layer of light - sensing cells lining the back of the eye
在照相機中，光線經過一系列的透鏡，把圖像聚焦在膠片上，在健康的眼睛中，光線通過角膜和透鏡，把圖像聚焦到視網膜上，而視網膜是一層排列在眼底的光敏單元。 -
Another negative attribute of the canon ef 180mm f / 3. 5 l usm macro lens is its slow focus speed
另外一個180的弱點是它有極其慢的對焦速度。 -
In the paper we mainly researched space gainp2 / gaas / ge high efficiency tandem cells " making process by home - made low pressure mocvd technology and new solar concentrators. firstly, we presented reseached and development of solar cells in china and foreign countries ; secondly, on the basis of fundamental priciples and theories, we discussed some factors of influcing conversion efficiency of solar cells, and analysed the i - v output feature of two - junction tandem cells ; then the design concept of gainp2 / gaas / ge two - junction tandem cells was discussed, the detailed aspects of gainp2 / gaas / ge tandem cells epitaxy growth by low pressure mocvd was studied, and some questions on epitaxy growth ( such as crystal qualities, interface stress, element interdiffusion, n - and p - type doping et all ) were solved ; after that, the cell fabrication process was described ; finally, we reseached the hot pressing and mould process technology of an arched line - focus fresnel lens made by pmma, designed and fixed new solar concentrators
本文致力於用自製的低壓mocvd裝置進行cainp _ 2 / gaas / ge空間用高效級聯太陽能電池製作的工藝以及聚光太陽能電池組件的研究。首先，介紹了國內外太陽能電池的研究現狀及應用情況；其次，運用太陽能電池基本原理討論影響電池轉換效率的因素，分析了級聯電池的伏安特性；隨后，討論了cainp _ 2 / gaas / ge雙結級聯電池的結構設計理念，研究了採用低壓mocvd技術生長cainp _ 2 / gaas / ge級聯太陽電池材料的工藝過程，解決了異質材料生長的結晶質量、界面應力、材料互擴散以及材料n 、 p型摻雜等一系列問題；然後總結了級聯電池的后工藝製作；最後，研究了以pmma為材料的菲涅耳線聚焦透鏡的熱壓成型工藝及其模具的加工工藝，設計並安裝完成新型聚光太陽能電池組件。 -
Electrons which pass through the thin specimen are brought to a focus in the back focal plane of the objective lens, this lens, like all electromagnetic lenses, acts as a converging lens and thus forms a diffraction pattern in this b. f. plane
穿越薄樣本的電子被帶到目標透鏡背面焦點平面的一個焦點，這個透鏡，象所有的電子透鏡一樣，充當了聚焦透鏡的作用，因此，構造了在這個背面焦點平面的衍射模式。 -
Fabrication of continuous relief mask for diffractive plane focus lens
連續型平面衍射聚光透鏡掩模的製作 -
The question was open as to what shape of lens would so focus in the coming rays.
什麼形狀的透鏡能起這樣的聚焦作用，還是一個沒有解決的問題。 -
The diffraction phenomena and analysis of self - focus lens
自聚焦透鏡衍射現象及分析 -
Field of view min focus 24x18 0. 3 m with 35 mm lens
Fov視場寬x高最小焦距 -
In a proof of principle, the team used a lens to focus sunlight into a tiny vacuum chamber and heated 10 grams of simulated lunar soil to about 2, 500
為了驗證這個原理，卡迪夫和組員利用透鏡將陽光聚焦到細小的真空室，把十克模擬月球土壤加熱至約攝氏2 ， 500度。 -
Imaging formula and object - image scale formula of laser beam transferred by focus lens are deduced according to the abcd law of matrix optics, and the factors that effect on beam focus properties are analyzed based on these two formulas
根據矩陣光學變換的abcd定律，推導出激光束經過單聚焦鏡變換后的成像公式和物像比例公式，並在此基礎上討論光束質量和聚焦系統特性對光束聚焦性能的影響。 -
Rather than showing the puppet as a regular sculpture, it is a marionette - made to be manipulable - and can be used like a lens to focus on the performance of gradually intensifying human solitary adoration
相比于像展示一件常規的雕塑為大家展示木偶，它更像是一個牽線木偶?被作成可操縱的?並且可以集中關注逐漸加強與人們個人孤獨的崇拜的表演。 -
As far as input coupling devices concerned, we design a feasible taper coupler by means of the theory of waveguide coupling and outside cavity waveguide laser and make decision of the sizes of the lens and the taper coupler, and the relative distance of them. the focus of the lens is 65mm and the radius is 5mm. the length of the taper coupler is 15mm, and the radiuses of the input and output ends separately are 17mm and 0. 65mm
在輸入耦合器方面，藉助于波導耦合和外腔式波導激光器的相關理論，設計了工藝上可行的錐型耦合器，確定了透鏡、耦合器的尺寸以及耦合器與透鏡的相對位置：耦合透鏡的焦距為65mm ，直徑為srnm ，耦合器的長度為15mm ，輸入端直徑為17mm ，輸出端直徑為0 -
Using knife - edge method at the focus of a lens to measure the beam divergence of a giant pulse laser output
焦點刀口法測量巨脈沖激光的光束發散角 -
At the fixed laser energy, the results show that the line intensity and stability can be enhanced if the focus of lens is set into the sample
實驗結果顯示在激光能量一定時，對激光束進行會聚的透鏡的焦點在樣品內部時，能提高libs信號的強度和穩定性。
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