numerical aperture 中文意思是什麼
numerical aperture
解釋
孔徑數-
These ideas explain why high numerical aperture, apochromatic lenses can separate extremely small details in blue light
這就是在使用大數值孔徑復消色差物鏡時用藍光照明可獲得超級解析度的原因。 -
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。 -
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。 -
The numerical results show that a reasonable reconstruction is also possible for low wavenumbers even when the incidence and observation aperture is as small as the possible / 4 solid angle
數值結果表明，對較小的波數，即使當入射和觀測孔徑為/ 4立體角時，得到一個合理的重構也是可能的。 -
It was based on the principle of laser confocal microscope. and the two - dimensional scanning configuration was adopted by the optical scanner and the telecentric linear imaging objective lens of large numerical aperture to realize x - direction ' s scanning, and the conventional mechanical method using linear driver and linear guide track to y - direction ' s. the experiment results indicate that the device can run smoothly and rapidly, be operated easily and detect fluorescence effectively
儀器基於激光共焦顯微鏡的理論，採用振鏡和遠心線性成像物鏡實現x向掃描；精密導軌和步進電機實現y向掃描的檢測儀，經驗證，掃描儀具有快速、操作簡單、檢測晶元能力良好等特徵，有望彌補市場的空缺。 -
The main results achieved in this thesis can be summarized as follows : 1. by means of the fourier series expansion, an approximate analytical propagation equation of flattened gaussian beams ( fgbs ) passing through an apertured paraxial abcd optical system is derived, and illustrated with numerical examples, when the transmissivity of the aperture is t ( x ) = cos ( x )
用傅立葉級數展開法研究了平頂高斯光束通過有光闌限制的近軸abcd光學系統的傳輸特性，導出了光闌透射率為t （ x ） = cos （ x ）時的近似解析傳輸公式，硬邊光闌的情況可作為= 0的特例得到。 -
A simply and analytical formula of the axial light intensity distribution behind a circular aperture is derived by using the helmhotz - kirchhoff integral theorem and the kirchhoff ' s boundary conditions. it is studied the nonparaxial on - axis intensity distribution throughout the whole space behind a circular aperture. an accurate formula to calculate the fresnel number of circular aperture is presented and the validity of usual fresnel number formula is reexamined. by using the analytical formula and diffraction integral formula, some numerical simulation comparisons are done, and it is shown that the results of the two methods are completely coincident
用亥姆霍茲-基爾霍夫積分定理和基爾霍夫邊界條件，推導出了平面波經小圓孔非傍軸衍射時軸上強度的簡單解析表達式，研究了平面波經小圓孔后整個衍射空間非傍軸的軸上光強分佈.給出了計算圓孔菲涅爾數的精確公式，重新檢查了通常的菲涅爾數公式的有效性.數值計算顯示，應用解析表達式所得的結果與應用衍射積分公式所得的結果完全一致 -
Numerical aperture of step - index multimode optical fibers by output far - field radiation pattern measurement
用輸出遠場輻射圖測量確定步長指數多模光纖的數值孔徑 -
The non - singular extended 2 x 2 jones matrix is deduced to give the precise description of angular property under normal and oblique incidence. consequently, we draw a very important conclusion that the pif is insensitive to the incidence, and has a large numerical aperture
詳細推導了適用於偏振干涉濾光片角度特性分析的無奇異點擴展2 2瓊斯矩陣，對正入射和斜入射下的偏振干涉濾光片光學特性進行了精確描述，並分析出偏振干涉濾光片具有大數值孔徑的重要特性。 -
The outline of fiber ' s tip has very great influence on the coupling efficiency. it is reported, using the way of grinding and melting to form a microlens on the fiber ' s tip, can increase fiber ' s numerical aperture, reduce the ellipticity of laser, and improve coupling efficiency
光纖端面的形狀對耦合效率有很大的影響，有文獻報道，採用拋磨燒熔等加工方法，可在光纖端面形成一個微透鏡，增大光纖的數值孔徑，對入射激光進行橢圓度校正，從而提高耦合效率。 -
Maxinum theoretical numerical aperture
最大理論直徑孔徑 -
It produce general planning of fibre optic pressure sensor design, established pressure signal measuring mathematic model, deduce lights numerical aperture in bent optical fiber, analyses some kind of photoelectric detection mode. it expound characterization of optical fiber illuminating source and light detector, exhaustively analyse of illuminating source - optical fiber, light detector - fiber optical and fiber optica - fiber optic
論文提出了光纖壓力傳感器的總體方案，建立了壓力信號測試的數學模型，推導出了光在彎曲光纖中的數值孔徑，分析了光電探測的幾種方式。詳盡闡述了光纖、光源和光探測器的特性，對光源?光纖和光探測器?光纖的耦合效率進行了分析。 -
Further, if you close down the aperture diaphragm, you will observe that objectives of higher numerical aperture " grasp " more of these colored spectra than do objectives of lower numerical aperture
當光欄關小后，數值孔徑大的物鏡比數值孔徑小的物鏡產生的光譜狀點要多一些。 -
Numerical aperture measurement of graded - index optical fibers
分級指數光纖的數值孔徑測量 -
Hence the value of high numerical aperture for such specimens
因此對這標本需採用大數值孔徑的物鏡。 -
Optical fibres - measurement methods and test procedures - numerical aperture
光學纖維.測量方法和試驗規程.數字孔徑 -
Optical fibres - part 1 - 43 : measurement methods and test procedures ; numerical aperture
光學纖維.第1 - 43部分:測量方法和試驗規程.數值孔徑 -
Optical fibres - part 1 - 43 : measurement methods and test procedures - numerical aperture
光學纖維.第1 - 43部分:測量方法和試驗程序.數字孔徑 -
Aerospace series - fibres and cables, optical, aircraft use - test methods - numerical aperture
航空航天系列.飛行器用光纖和光纜.試驗方法.數字孔徑 -
Aerospace series - fibres and cables, optical, aircraft use - test methods - part 302 : numerical aperture
航空航天系列.飛機光纖和光纜.試驗方法.第302部分:數值孔徑
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