透鏡焦點 的英文怎麼說
中文拼音 [tòujìngjiāodiǎn]
透鏡焦點
英文
focal point of lens- 透 : Ⅰ動詞1 (滲透; 穿透) penetrate; pass [seep] through 2 (暗地裡告訴) tell secretly; let out; lea...
- 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 : 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;...
- 點 : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
- 透鏡 : [物理學] lens; optical lens
- 焦點 : 1 [數學] [物理學] (二次曲線焦點; 主焦點) focal point; focus 2 (問題的關鍵所在或爭論的集中點) ...
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The feasibility and some advantages of employment of sil have been discussed. the numerical aperture are calculated when laser pulse is defocusing. in contrast with traditional microscopy objective, the employment of solid immersion lens can effectively increase the numerical aperture of the recording system ; thereby it can increase the volumetric density and decrease the demand of the incident laser power
當脈沖聚焦點相對于固體浸沒透鏡底面離焦時,對系統的有效數值孔徑進行了計算,結果表明採用固體浸沒透鏡離焦的方式進行記錄,系統的有效數值孔徑最低可增大到固體浸沒透鏡插入前的折射率倍,其數值孔徑的理論極限值為存儲介質的折射率。4, single focuse the single head : is single for single laser head that panasonic lead off to adopt to focuse the double the laser beam for focusing ordering the project, he adopting the special whole synthesizing lens, passing lens in the center part ofly the focusing of formation cd the point, and pass the anastigmatic laser beam of part edge the formation the focusing of dvd the point, this kind of construction because of have no the machining to spread to move, and also can t produce the mechanical trouble, therefore increased to recognize the dish the speed, and however and also lowered the cost. but adoption this project of generation is with part of the next generation dvd nonsupports cdr
4單聚焦單鏡頭:為panasonic率先採用的單激光頭單聚焦鏡雙聚焦點方案,他採用特別的全息綜合透鏡,通過透鏡中間部分的激光束形成cd的聚焦點,通過透鏡邊緣部分的激光束形成dvd的聚焦點,這種結構由於沒有機械傳動,也不會產生機械故障,所以提高了認盤速度,不過同時也降低了成本。但採用此方案的第一代和部分第二代dvd不支持cdr 。Single beam focusing lens antenna is the basis and crux of the multiple beam focusing horn lens antenna. only adequately and accurately analyzing focal area ’ s position and resolution, consider the influence when horn feed ’ s position is displaced to different location, we can design multiple beam focusing horn lens antenna
單波束點聚焦透鏡天線是多波束聚焦透鏡天線的基礎和關鍵,只有充分精確地分析了單波束點聚焦透鏡天線解析度大小和焦斑位置,以及單個波束的偏移產生的相應影響,才能設計多波束聚焦透鏡天線。On the base of studying imaging theory of lens, the imaging theory of laser confocal scanning microscopy was analyzed in detail in this paper, and the advancement of that the optical fiber was applied to the system was described ; on the base of completed the demonstration for whole project, the experiment scheme was designed ; the relationship between the main parameters of key devices and the resolution was deduced, and the requirements of coupling efficiency and vignetting effects to optical system was analyzed ; the design of optical system and the planar scanning controlling circuit was completed ; a new method was put forward to resolved the inherent non - liner scanning problem of the galvanometer scanner by using software liner controlling in circuit design, and the perfect planar scanning was realized ; at last the low noise, high multiple and non - distortion amplify circuit of photoelectric detector was completed
本文在透鏡成像理論的基礎上,系統、深入地分析了共焦掃描顯微成像的機理,論述了應用單模光纖的激光共焦掃描顯微成像系統的優點;進行了總體方案的論證,並設計確定了單模光纖激光共焦掃描顯微成像系統的總體方案;從理論上推導分析了解析度要求與試驗系統中相關器件主要參數之間的關系,分析了系統耦合效率和漸暈現象對光學系統的設計要求;完成了方案中光學系統和二維掃描控制電路的設計,並在電路設計中採用了用軟體解決檢流計式光學掃描器(振鏡)非線性問題的新方法,能夠實現較為理想的二維模擬掃描;完成了高增益、低噪聲和低失真的探測接收系統的設計和調試。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。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。At last, we discussed the spillover and illumination level. with experiments of single beam and multiple beam lens antenna, we got results that their specifications achieved the project goals
在此基礎上,設計了多波束點聚焦透鏡天線,並對設計的多波束聚焦透鏡天線進行模擬和試驗。Lenses can be placed between the beam splitter and the computer display to focus the image so that it appears at a comfortable viewing distance
在分光鏡和電腦顯示器之間放幾個透鏡,即可調整影像的焦點,使它看起來像是隔著某個舒適的觀察距離。A focal plane imaging is limited in catching object when spot - focusing horn lens antenna is applied in ballistic wake microwave interferometer. so we consider to designing multiple beam focusing horn lens antenna in order to augment the range of catching and enhance the probability of hitting the target
本文的主要工作是針對彈道靶尾跡微波干涉儀里的點聚焦單波束捕捉目標的有效性能不足,而考慮設計一個具有點聚焦特點的多波束聚焦透鏡天線,以增大捕捉范圍和提高中靶率。We designed, simulated and experimented multi - beam lens antenna based on spot - focusing lens antenna ’ s designing, computer simulation, experiment and analysis. in this paper, the author adopted different methods to discuss resolution including geometry optics, gaussian beam and vector diffraction integration
然後在對單波束點聚焦透鏡天線進行設計、模擬和試驗的基礎上,進行準確的分析,以作為多波束天線設計的理論基礎。The variable - focus liquid microlens based on electrowetting on dielectric ( ewod ), which has the outstanding advantages of simple structures, low power dissipation, easily tunable of focal length, etc., is most attractive
在提出的各種新型的可變焦微透鏡技術中,基於介質上電潤濕的微流體透鏡由於其結構簡單、功耗低、調節焦距方便等眾多突出的優點而被人們所重視。The field distribution and propagation properties in sil system is analysed, and the relationship between the focusing spot size and the defocusing amount is also described. moreover, a novel model is proposed on basis of the fdtd analysis that can make us increase the distance between sil and recording medium without decreasing the recording density
模擬的過程中還發現,在小尺寸sil透鏡(半徑為波長量級)離焦時,系統焦點可以被推移到離sil底面較遠的位置而不會產生大的解析度損失,根據該結果我們提出了一種增大sil底面與存儲介質間距的方案,該方案對于sil高密度光存儲系統的實用化研究具有重要意義。In reference 1, based on optical principle, and using microscope " s f ocu sing method, a method of measuring the thickness and refractive index of transpa rent material is presented ; besides, according to the quantitative correspondenc e relationship between the refractive index and the density of some solution, a method of measuring the density of solution is presented too
文獻1是根據光學原理,運用顯微鏡調焦方法提出了測量透明材料厚度和折射率的方法;在此基礎上,根據不少溶液的折射率和濃度均有定量對應關系的特點,提出測定濃度的簡易方法。This procedure ensures that within focusing be noted however, that for a ' three - lens ' microscope the necessity of this procedure has the consequence that s. a. d. can be obtained at only one magnification ( for a constant projector lens setting ) which is a considerable disadvantage of such microscopes
這個過程保證了盡管聚焦被標明了,過程中對於三透鏡顯微鏡的的必須性有了結論: s . a . d .可以通過僅僅一次放大(通過一種固定的投影透鏡設置)取得,對于這類顯微鏡來說,這是一個永遠的弱點。In order to measure the focal length of lens automatically, linear ccd is used as receiver on behalf of eyes on the basis of original experiment equipment measuring the focal length of lens. a kind of method determining the focal plane automatically is put forward and analysed theoretically in this text, based on the theory of point spread function
本文基於點擴散函數理論,提出一自動檢焦方法,對該方法進行理論分析,並通過實驗驗證了該方案的可行性;確定焦面后,在處理測量數據過程中,文中對常用的幾種方法進行了比較和分析,最後採用質心法來實現對透鏡焦距的測量。Discussions and preliminary experiments are given for some potential applications of left - handed materials. experimental results which are in accordance with expects for the focusing of plane wave using symmetric rings and the focusing of radiate source using rings are obtained. simulation results are also obtained concerning the - like structure based backward radiate antenna and transmission line based left - handed structures
對稱環結構異向介質凹透鏡的平面波聚焦、結構異向介質的點源會聚等實驗都得到了和預期接近的初步結果;對基於結構全固態異向介質後向波介質天線微波異向介質的實驗研究和基於微帶電路結構單元的異向介質進行了計算機模擬研究,也取得了較好的結果。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。分享友人