optical focus 中文意思是什麼
optical focus
解釋
光焦點-
This dissertation is focus on the temperature sensitive mechanism of the brillouin - scattering signal and on the basis of domestic techniques, the methods and approaches of signal detection and processing in distributed brillouin fiber - optical sensor system. a digital multi - point average method ( digital boxcar ) has been proposed based on the characteristics and the sorts of fiber - optical sensors and by analysis the feature of the brillouin - scattering signal, and also comparisons of all sorts of weak - signal detection theory
論文在全面了解光纖傳感器的分類和特點及分散式光纖傳感器的原理和發展歷程的基礎上，通過分析被檢測的光纖布里淵後向散射信號的特點，研究和比較了微弱信號檢測的各種方法，最終選定了多點數字信號平均（數字boxcar ）的處理方案。 -
Meanwhile, solid immersion lens is also applied to focus femtosecond laser pulse in three - dimensional optical data storage
分析和闡述了固體浸沒透鏡應用於飛秒脈沖激光三維光存儲系統中的可行性及優點。 -
In conclusion, solid immersion lens, which is feasible to focus femtosecond laser pulse in three - dimensional optical data storage, shows the rather potential to increase the volumetric density
總之，用固體浸沒透鏡在透明介質中進行飛秒激光三維存儲是可行的、且其在提高體存儲密度方面有較大的發展潛力。 -
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。 -
In this thesis, the work on automatic alignment system is as follows : firstly, after the methods and optical systems for alignment whose are used commonly now are discussed, a new die leveling method based on auto - focus is presented for the flip chip bonder. auto - focus is completed by estimating from images ; die leveling is completed by focusing for several feature locations
本文針對倒裝貼片機的自動對準系統開展了以下幾方面的工作:首先在討論了現有的對準方法和自動貼片機的對準光路系統基礎上，針對貼片機實際應用環境，提出基於多點自動對焦的晶元調平方法。 -
So, knbo3 is found to be one of the most important crystals for the generation of blue light research on the generation of blue lasers has become a focus because of its important applications and potential commercial value in many fields, such as high - density optical storage, numeric video - frequency technique, color - laser vision, laser typography, laser medicine and material science and so on
而此藍光激光源在激光製冷、高密度光儲存、數字視頻技術、彩色激光顯示及激光印刷術、激光醫學、材料科學等許多領域都有著重要應用和潛在市場，所以對藍光激光源的研究也越來越廣泛和深入。 -
After measured the laser energy distribution of kunming slr station, the parameters of this non - gassian and non - spherical symmetric laser beam were deduced according to correlation definition. applying its laws and deduced laser beam parameters, the change of laser beam dirvergence angle was studied in detail when adjusts transmission system focus. moreover, calculation based on these measured data indicates that the laser shaded by the second mirror of telescope is amazingly up to 39. 8 %, an optical element was designed for the settlement and it worked satisfactorily when put it into practice
之後測量了雲南天文臺激光的橫向能量分佈，根據相關定義確定了這束非高斯非球面激光的參數，應用它的傳輸變換規律和測量參數研究了調焦中激光發散角的變化，並根據測量數據計算出激光發射時副鏡擋光比例達到驚人的39 . 8 ，研製出光劈解決這一問題，取得了很好的效果。 -
Though, the lateral resolution of cm has been enhanced to be 1. 4 times of that of a conventional optical microscope under the same aperture focus ratio, it is still two orders of magnitude lower than the axial resolution of itself. so, it is urgent to further improve the lateral resolution of cm
然而，盡管共焦顯微鏡的橫向分辨力已提高到相同孔焦比的普通光學顯微鏡的1 . 4倍，但與其本身的軸向分辨力相比，橫向分辨力仍低2個數量級，因此進一步改善共焦顯微鏡橫向分辨力的研究顯得尤為迫切。 -
The thesis is focus on the research of the optical - fiber differential current protection that can adapt to the rapidly changing power grid. it mainly contains the following four parts : ( 1 ) theoretical analysis of some operation criterions and some factors that influence the operation of the differential protection. ( 2 ) simulation of a 500kv transmission line using emtp software
其主要內容是： （ 1 ）對影響差動保護靈敏度的各種因素和不同的電流差動保護判據進行了理論分析； （ 2 ）用emtp模擬軟體對差動判據進行了數據模擬，並用matlab對輸出結果進行了詳細的可視化分析； （ 3 ）分析、比較了國內外縱差保護的數據采樣同步方法； （ 4 ）對判據進行了實際的編程實現和動模模擬。 -
This paper describes a new method to select these parameters, including to determine the focus length, relative aperture and field of view of new optical system in design by means of making reference to previous star sensors and their optical systems ; to forecast the acquiring probobility of star sensor in accordance with selected param eters ; to determine the principal design wavelength and spectral coverage by means of integrat ing the spectrum of stars
本文介紹一種確定光學系統參數的新方法，包括通過參考比較已有星敏感器及其光學系統特性來選取新光學系統焦距、相對孔徑和視場；根據所選取的參數預計星敏感器的捕獲概率；採用綜合恆星光譜方法確定光學系統中心波長和光譜范圍。 -
Currently the measurement and correction of aberration is a focus points in the field of ophthalmology. the examination of wave - front aberration is a main method that is used to observe optical system of the human eye
人眼波前像差測量與矯正是目前眼科領域的研究熱點之一，而波前像差測量是觀察人眼光學系統是否完備的一種比較全面的方法。 -
2. we design a configuration of frequency - doubler according to the optimum focus condition and the cavity stability condition | a + d | < 2 and optimize it based on " mode - matching " and " optimum coupling ". 99. 96 % of optical impedance - match efficiency and over 95 % of spatial mode - matching efficiency are achieved eventually by using t = 10 % of input coupler in our experiment
（ 2 ）根據最佳聚焦條件和腔的穩定性條件（ | a + d | 2 ）對四鏡環型倍頻腔進行了設計，並分別從「模式匹配」和「最佳輸入耦合鏡透射率的選擇」兩方面著手對腔進行優化，在我們的實驗中採用10的輸入耦合鏡，獲得阻抗匹配效率為99 . 96 ，空間模式匹配效率高於95以上的模式。 -
Based on our great research ability in scientific and technical area in philips the netherlands, and good skills in high precision optical products and tool making, we are active in lenses for mobile phone and actuators for auto focus and other high tech plastic applications
公司依託于荷蘭飛利浦強大的科技研發力量，在具有高技術含量的精密光學注塑產品及模具方面具有優勢，進行各類手機、照相機鏡頭的組裝及生產，以及其他高科技精密注塑產品的生產。 -
The operations of company mostly focus on equipment fixing engineering and line fixing engineering in jilin province, for example wireless communication, microwave communication and long distance optical cable etc. the goal of company is " quality the first, reputation the first, customer the first and service the first ", so it has good reputation in communication engineering construction field in jilin province
2004年，公司按集團公司的要求，進行了薪酬體系的改革，實行競聘上崗，以崗定薪的薪酬體系。 2005年10月，按照網通集團公司「改制、上市」的部署，吉林通信建設公司成為吉林省通信行業第一家改制的國有企業。 -
3. because traditional coupling system composed with cylinder lens and focus lens has the disadvantages of difficult to encapsulation and modulate, a new practical method brings forward : the output light from laser diode is collimated using a section of optical fiber with the diameter of 600 m instead of cylinder lens, and a sphere ? end lens
3 .針對由柱透鏡和聚焦透鏡組成的組合透鏡耦合系統中存在的封裝和調試困難等問題，提出了:用一段直徑為600 m的裸石英光纖代替柱透鏡，對半導體激光器輸出光束進行準直整形;用球透鏡光纖對準直后的光束進行聚焦，直接實現和光纖耦合，來代替聚焦透鏡和光纖耦合的環節。 -
Camera use transmitter and ccd components, fixed - focus camera, or electrical zoom lens, optical transmission control signal
攝像儀採用光端機、 ccd組件、定焦鏡頭或電動變焦鏡頭，以光纜傳輸監控信號。 -
The focus, field of view and transmissivity of the optical system of the receiver are analyzed. a high - speed transimpedance amplifier circuit is designed with optimized noise. through the noise model
設計了一種噪聲優化的高速跨阻前置放大電路，根據跨阻放大電路的噪聲模型詳細分析了輸出噪聲電壓、信噪比和信號動態范圍。 -
In this thesis, a design scheme is introduced about whole early - warning system ’ s structure according to the optical needs. the focus is placed on the pointing speculum ’ s light - weighting design. through comparison, sic is selected as the speculum ’ s material which has features of high strength, low density, well comprehensive performance and being adaptable for space environment
本文首先根據光學需要對導彈預警系統總體結構進行了設計，重點對其中的關鍵部件指向反射鏡進行了輕量化設計，通過比較選擇了合適空間環境且具有高強度、低密度、綜合性能好的sic作為反射鏡的材料，運用有限元分析軟體ansys對幾種輕量化結構分別進行優化，通過比較最後確定指向反射鏡輕量化結構及尺寸。 -
Optical focus switch
光聚焦開關
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