optical field of view 中文意思是什麼
optical field of view
解釋
光學現場-
A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎 -
In this thesis, wide - fov ( field - of - view ) optical systems with optical gain based on fov and optical gain of laser detection and warning optical system are studied. it can solve the problem of wide fov matching with small photosensitive surface, enhance the power received, increase detecting sensitivity, reduce the power of laser and decrease the cost of laser accordingly
本文正是針對上述問題，從激光輻射探測光學系統的視場和光學增益出發，研究寬視場有增益光學系統，解決大視場和小光敏面匹配的矛盾，增強接收到的光功率，提高探測靈敏度，降低對激光輻射源功率的要求，從而降低相應激光器的成本。 -
Abstract : in the field of optical wireless links, concentrators that are designed by the tools of nonimaging optics can be used to collect the light radiation and are more compact and have higher collection efficiencies than imaging concentrators. hemispherical concentrators are studied by ray tracing, then for several normal nonimaging concentrators : hemispherical concentrators, compound parabolic concentrators ( cpc ), dielectric totally internally reflecting concentrators ( dtirc ), simultaneous multiple surfaces concentrators ( sms ) and inhomogeneous media concentrators ( poisson bracket ), the design methods and the performances e. g. the gain and the field of view ( fov ) are compared as well as the application suggestion
文摘:在無線光通信領域，利用非成像光學設計的集中器能夠聚集光輻射能量，而且相對于成像性集中器具有更緊湊的結構和更高的增益.利用光線追跡法對半球形集中器的性質進行了分析與研究.對好幾種非成像集中器:半球形集中器，復合拋物線形集中器，介質內部全反射集中器，多表面集中器，多相介質集中器，從設計原理、增益和視場進行比較，並分析其應用場合 -
China university of science and technology li yin - mei group, proposed to dark field microscopy observation of light scattering technology and optical tweezers capture the idea of combining the traditional optical microscope optical tweezers system from the side of a bouquet of flake coupling laser irradiation samples, laser incident in a specific location, so that samples of the particles scattered light through the microscope imaging ; overcome the well - optical tweezers and microscopic imaging of laser irradiation, as well as strictly coincidence of the three key technologies to achieve the optical tweezers capture 100 nanometer - styrene ball at the same time also in the entire field of view of microscopic observation of nano - particles, to capture optical tweezers nanoparticles can also observation purposes
中國科學技術大學李銀妹課題組，提出將暗場顯微術觀察光散射的技術與光鑷捕獲相結合的設想，在傳統光學顯微鏡光鑷系統上從側面耦合一束片狀激光照射樣品，在特定的激光入射位置，使樣品中粒子的散射光可通過顯微鏡成像；克服光鑷的阱位與顯微成像面以及激光照射面三者嚴格重合的技術關鍵，實現了光鑷捕獲100納米聚苯乙烯小球的同時也能在整個顯微視場中觀察納米粒子，達到了光鑷捕獲納米粒子的同時也能觀測的目的。 -
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。 -
The optical system is optimized to achieve 0. 1 u m resolution over a o. lmm diameter image field of view and the mirrors of the objective were coated with mo / si multilayer to provide 45 % reflectance at near - normal incidence angle for 13. 0nm radiation
經優化設計后， 0 . 1mm像方視場內的成像解析度優於0 . 1 m ；近正入射條件下， schwarzschild微縮物鏡主、次鏡mo / si多層膜的實測反射率為45 。 -
Portable long - range infrared surveillance system thermovision 2000 is a state - of - the - art long - range platform mounted thermal imaging system, offering unmatched performance with its long - wave gen - iii qwip sensor and internal three field of view optical system
Thermovision 2000是尖端科技的長距離安裝有紅外熱像系統的監視平臺，提供無與倫比的第三代長波qwip quantum well infrared photondetector量子阱紅外光電探測器的性能和內置三種不同光學視場角25 -
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。 -
Our foxy - t1000 probe has a screw - on cap to block the optical field of view of the fiber, while allowing easy access to the probe tip
我們的foxy - t1000有一個旋上蓋以阻擋光纖的光學現場，允許使用探測器的尖端。 -
How to improve the three primary colors led light source cavity, polarizing beam splitter system of civil lcos hmd is discussed in this paper. in addition, a new eyepiece optical system with wide fov ( field of view ) 、 big exit pupil 、 long eye relief is also designed by an optical design program named zemax. the result is very successful
本文對民用lcos頭盔微顯示器的led三基色光源及其腔體、偏振分光系統進行了改進，藉助zemax光學設計軟體輔助設計出了大視場、大出瞳直徑、長出瞳距離的目鏡放大光學系統，獲得了十分理想的效果。 -
Visible - light optical target simulator describes images of target which needed in the test and research, which is drived by the two - axis turntable to complete the field of image and movement characteristics of the goal. the field of view and movement characteristics of the goal must be in the requirement the seeker and it is the simulant target of the test
可見光目標模擬器模擬產生電視導引頭在測試和試驗過程中所需的各種目標圖像，由二軸轉臺帶動目標模擬器形成滿足導引頭要求的圖像視場及目標運動特性，作為導引頭測試的模擬目標。 -
Variational image sampling was employed for focus windows selection, and the harmony between resolution and field of view was implemented. a human face extracting method based on color, shape and detail features was proposed, in order to overcome restriction of method based on skin detection. a method using optical flow was introduced to segmenting moving human face in focus images, and has better perspective in surveillance situation
我們從多方面進行探討，提出用統計手段分析成像主體最可能被放置的區域，有效地減少了成像主體不在中心時引起的誤對焦；提出用解析度空間變化的手段對圖像進行非均勻采樣，達到解析度與視場的協調；提出通過顏色、形狀和細節三方面進行人臉探測，有效地克服了單純靠皮膚進行探測的局限：提出基於光流場的方法分割圖像中的人臉，適用於監控場合。 -
In view of this, the development of new - type optical switches have started, it can achieve the optical layer routing, wavelength selection, optical cross - connect functions, has great potential and broad prospects for application in the field of optical fiber communications market
它的出現為光開關、光衰減器以及濾波器等光纖通信器件的微小型化、大陣列化和低成本化提供了技術上的可能性。因此微光機電系統（ moems ）是微電子機械繫統（ mems ）的一個很有前途的應用領域。 -
First, the dsp board calculates optical flows ( the velocity field of an image ) based on the gradient method. next, the region of the moving object on the image is extracted from the optical flows using knowledge about the region of the object, such as region - merge arithmetic, region - connection arithmetic or clustering arithmetic. finally, the camera is controlled to keep the object in its field of view
我們建立了一個基於tms320c6701的dsps系統，首先求解出基於梯度方法的光流場（原始圖像的速度場） ，然後根據區域合併、區域連通或聚類演算法等方法從光流場中抽取出運動目標區域，並計算出運動目標的速度矢量，進而通過雲臺裝置控制攝像頭的轉動，使得運動目標始終位於攝像機的視野中，從而完成對復雜背景中單個運動目標的實時跟蹤。
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