驗光學 的英文怎麼說
中文拼音 [yànguāngxué]
驗光學
英文
optics and optometry-
Unlike optical systems, acoustic check systems can bother the passengers of a vehicle a lot.
不像光學系統，聲學檢驗系統會使車上的乘客感到相當厭煩。The gravity analysis is carried out especially for the synthetic fused silica and calcium fluoride used in 193nm lithographic objective as well as the optical elements with structural sizes of ( 200mm ~ ( 300mm. large numbers of analysis data for surface shape error are obtained by using algor finite element analysis software. then these data are plotted into curves and comparison analysis will be carried out, finally the measures and schemes for reducing gravity deformation are proposed
因此，本論文重點對大口徑光學系統在高精度光學鏡頭裝校中，因重力變形進行了詳細的分析研究，特別針對193nm光刻物鏡系統所使用的材料sytheticfusedsilica和caleiumfluoride以及用到的結構尺寸200mm ~ 300mm光學零件進行了重力變形分析，使用algor有限元分析軟體獲得了大量的面形誤差分析數據，然後將這些數據繪成曲線進行對比分析，最後提出了減小重力變形的措施與方案，並進行了實驗，驗證了分析結果是正確的，減小重力變形的方法是有效的。Lc apparatus almost meet all the needs of space optical communication such as weight, size, power consume, life, cost, driving voltage, intergration of optics and electricity, programe, optically take ? over aperture, beam scanning, deflexional range and so on. switches, deflexional facilities and scanning equipments which made with lc have been used in the system of labor in space communication. the only bug of lc apparatus is that their answer speed only get microsecond rate or submicrosecond rate. but it is practical for them to be used in special beam capture, scan, deflexion controling which don ’ t concerned with code rate and code type
液晶器件幾乎滿足空間光通信的所有大的指標要求如重量、尺寸、功耗、壽命、成本、驅動電壓、光電集成、可編程性、光學接收孔徑、光束掃描和偏轉范圍等等。液晶光開關、光偏轉器、光掃描器已經開始應用於光纖通信的實驗系統中。液晶類器件應用於光通信的唯一重大缺陷，是其響應速度目前只能達到微秒級或亞微秒級，不過，在不涉及到碼型碼率的空間光束捕獲、掃描、偏轉、控制方面，液晶器件完全可能進入實用化。Elements of electrical and optical connection - test methods - current temperature derating
電氣和光學連接元器件.試驗方法.第209部分:降低電流溫度額定值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The eg is almost equal to eg obtaining from the empirical formula
確定出的光學帶隙和經驗公式的計算結果相吻合。For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”
本文主要開展了以下三項研究工作: （ 1 ） .用自定義編碼方案，將數字和字母（ ascii碼）轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換，得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗，證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率，對於20次列印-掃描實驗，誤碼率不大於0 . 0026 。3. the principle of the interleaver based on the interference of polarized light is analyzed theoreticallyand the interleaver architecture of this kind is presented. a 50ghz interleaver is designed and the two series of interleaved spectrum like cosine function is obtained experimentally ; by using the tandem of two birefringent crystals with different optical path difference, we get the flattop spectrum
3 、分析了pbi型interleaver濾波器的基本原理，給出了一種pbi型interleaver濾波器結構；設計了50ghz光學梳狀濾波器，實驗得到了該器件兩組交錯分波類餘弦輸出光譜；採用不同光程差的晶體級聯方案，實現了輸出光譜平頂化。This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology
該多功能激光光電實驗系統以泰曼-格林干涉（ twyman - green ）光路作核心，包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法，同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。Optics and optical instruments - environmental test methods - part 13 : combined shock, bump or free fall and dry heat or cold iso 9022 - 13 : 1998
光學和光學儀器.環境試驗方法.第13部分:組合沖擊碰Methods of optical test for welding goggles
焊接護目鏡光學性能試驗方法Aerospace series. elements of electrical and optical connection. test methods. part 414 : unmating of lanyard release connectors
航空航天系列.電氣及光學連接元件.試驗方法.第414部分:牽索釋放連接器的非配合Elements of electrical and optical connection - test methods - magnetic permeability
電氣和光學連接元件.試驗方法.導磁性Much attention has been shown to para - nitroaniline ( pna ) for its strong nonlinear optical response
硝基苯胺（ para - nitroaniline ）分子由於具有較強的非線性光學響應而受到理論工作者和實驗工作者的廣泛關注。Ogle optical gravitational lensing experiment
光學重力透鏡實驗He has accomplished eleven books in the related fields of ophthalmology and optometry since his illness, and is working on the twelve book - an autobiography to record his triumphs and loses in the past experience of facing cancer
他開始努力著述，已經完成在眼科學和驗光學相關領域十一本專書，並且正著手進行第十二本書自傳，記錄抗癌過程中的得失經驗。Ophthalmic optics. visual acuity testing. standard optotype and its presentation
眼科光學.視覺敏銳度測驗.標準驗光字體及其演示Ophthalmic optics - visual acuity testing - standard optotype and its presentation iso 8596 : 1994 ; german version en iso 8596 : 1996
眼科光學.視力檢驗.標準視力符號及其演示Linking photoelasticity and computer technique and realizing the image automatic reduction is one of major directions to develop experimental mechanics
將光彈性方法和計算機相結合，實現光彈性圖像的自動識別功能是近年來實驗力學發展的主要方向之一。Commitment to quality in every step of the procedure by our ophthalmologist, optometrist and staff combine to produce highly accurate results
我們的眼科醫生，驗光學師和工作人員承諾在手術過程中的每個程序提供優質服務以達到最精確的效果。分享友人