角膜光學 的英文怎麼說
中文拼音 [jiǎomóguāngxué]
角膜光學
英文
optics of cornea- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
- 膜 : 名詞1. [生物學] (像薄皮的組織) membrane 2. (像膜的薄皮) film; thin coating
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 角膜 : [生理學] conea; cornea角膜白斑 keratoleukoma; walleye; albugo; leucoma; leukoma; 角膜薄翳 achlys;...
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The cuhk and the hospital authority ( ha ) have organized a special service for those who have a medical indication for refractive surgery ( lasik ) - severe myopia ( 8 diopters or more ) ; anisometropia, or a difference in refractive error more than 3 diopters between the two eyes ; and those who have had past corneal surgery such as cornea transplant
香港中文大學及醫管局合作提供有限度矯視手術服務( lasik )予有特別需要的病人深近視( 800度或以上) 、鴛鴦眼(雙眼屈光度數相差300度或以上)或曾接受角膜手術例如角膜移植手術。Chapter 3 erected the relationship between refraction error and cornel ablation depth in theory. the paper proposed various mathematical models which can be used for proceed the simple myopia, simple hypermetropia, compund myopia astigmatism, compund hypermetropia astigmatism, simple myopia astigmatism, simple hypermetropia astigmatism, mixed astigmatism. the influence of the astigmatic axis and the degree of astigmatism on the correction field is discussed. wavefront aberration guided excimer laser cornea ablation is a main method of customised corneal ablation
以數學的方法研究出了屈光性單純近視、屈光性單純遠視、復性近視散光、復性遠視散光、單純近視散光、單純遠視散光、混合性散光屈光矯正的物理模型;並揭示了不同軸位的轉換規律,對不同散光情況下的初始角膜兩個不同方向的曲率半徑和手術后最終的曲率半徑作了定量的研究。Corneal surfaces in eyes with regular astigmatism are thought to be toroidal surfaces. based on mathematical models for corneal surfaces before and after treatment, a corneal ablation model is given for such refractive errors as spherical myopia, compound myopic astigmatism, and simple myopic astigmatism. a similar corneal ablation model is also given for such refractive errors as hyperopia, compound hyperopic astigmatism, and simple hyperopic astigmatism
採用超環面( toroidalsurface )建立起規則散光下的角膜曲面模型方程;定量研究了手術光學區屈光不正兩種通用的矯正模型,一種模型適用於單純近視、復性近視散光、單純近視散光的矯正,另一種模型適用於單純遠視、復性遠視散光、單純遠視散光的矯正;另外,作為影響手術效果的重要因素,提出了一種用於光學區直徑和過渡區寬度均可調節時過渡區角膜切削量的計算模型。The author mainly anticipates the task including the simulation of eye fundus imaging and image mosaic. on the base of the dr principle and ophthalmic phototropism study, the author analyze and contrast new fundus camera system with traditional fundus camera. the author will establish the eyeball model with 3ds max technology, imitate the simple eyeball dioptre system and simulate the narrow - angle imaging to ensure the rationality and authenticity of fundus image, which solves the object origin of later image process, then fast mosaics the nine piece of fundus images with the help of the image registration theory and acquire a piece of wide - view fundus image containing more information, thereby provides doctor with enough diagnostic detail, which solves the problem of narrow view
作者在熟悉糖尿病性視網膜病變原理和眼科屈光學的基礎上,進一步研究分析了新型免散瞳眼底照相系統和傳統眼底照相機原理和區別,擬採用3dsmax建立三維眼球模型,模擬眼球屈光系統,模擬眼底照相系統的小角度拍攝,使獲取的眼底圖像合理真實,解決後期系統圖像分析處理的對象來源問題;然後運用醫學圖像配準理論對模擬獲取到的九幅小角度眼底圖像進行快速拼接,拼成一幅大角度的眼底圖像,解決小瞳孔拍攝圖像視角太小的問題;最後通過對眼底圖像配準演算法在相似性測度和搜索演算法的比較,找到一種適合眼底照相系統的眼底圖像拼接的快速演算法。Surface states and the topmost surface atoms of the batio3 thin films have been analyzed by x - ray photoelectron spectroscopy ( xps ) and angle - resolved x - ray photoelectron spectroscopy ( arxps ). the results show that the as - grown batio3 thin films have an enriched - bao nonstoichiometric surface layer which can be removed by ar + ion sputtering, and the atomic ratio of ba to ti decreases with increasing the depth of ar + ion sputtering
用x射線光電子能譜技術( xps )和角分辨x射線光電子能譜技術( arxps )研究了薄膜的表面化學態以及最頂層原子種類和分佈狀況,結果顯示在熱處理過程中薄膜表面形成一層富含bao的非計量鈦氧化物層,並且鋇-鈦原子濃度比隨著探測深度的增大而逐漸減小。The feasibility that kaufman ion source is applied in reactive ion beam etching is discussed. etching characteristics of materials, including pr, cr, quartz, are investigated. the etch rate and mechanisms of such materials are measured and analyzed as a function of ion energy, ion beam density and ion incidence angle in pure ar and chf3, respectively. the etch rate has shown a square root dependence on variation versus
深入研究了光刻膠、鉻薄膜、石英等光學材料離子束刻蝕特性,分別以ar氣和chf3為工作氣體,研究光刻膠、鉻薄膜、石英等的刻蝕速率隨離子能量,束流密度和離子入射角度的變化關系,得到刻蝕速率與影響因素的擬合方程,為掩模的製作工藝路線提供了實驗依據和理論指導。Gas permeability tester and mechanical folding device were developed to study the barrier property and deformation failure behaviors. the surface characterization, chemical structure, optical, mechanical properties of pet coated with dlc have been investigated by x - ray photoelectron spectroscopy ( xps ), contact angle measurement, light transmission analysis, nanoindentation and friction wear tests
通過x射線光電子譜分析、接觸角測定、光學透過率分析、納米壓痕、摩擦磨損試驗、機械彎折試驗、氣體透過率試驗,對膜層的表面特徵,光學、力學及氣體阻隔性能進行了系統的研究。In the theoretical description of grazing emission fluorescence, the mode of fluorescence intensity emitted from layered materials dependence of grazing angle is established by applying asymptotic approximations to double fourier integrals, and the theoretic calculation formula of fluorescence intensity from a thin layer is derived. by the derived expressions, the theoretic simulation curves of several thin layers on si substrate are calculated. in the experimental setup, the requirement of construction of the setup and some important parameters are brought forward
最後,利用平穩位相方法建立了掠出射情況下薄層樣品產生的熒光強度和掠出射角的對應關系數學模型,推導了薄層樣品熒光強度理論計算公式,並以此為依據模擬計算得出了cr 、 fe 、 ti和ni等幾種以si作基底的單層薄膜樣品的熒光強度隨掠出射角變化的理論曲線。2 studying of the properties of cbn thin films afm showed that cbn thin film delaminated from substrate obviously. basing xps, we calculate the nib ratio to be 0. 90 that is closing to unity, and the thickness of hbn layer on cbn layer that is about 0. 80 nm
根據x射線光電子能譜,計算得到立方氮化硼薄膜中的n和b的原子數比為0 . 90 ,接近理想化學配比1 ;立方氮化硼薄膜頂層的六角氮化硼的厚度約為0 . 80nm 。This demonstrates the feasibility of using grazing emission x - ray fluorescence spectroscopy as a method of studying the thin layer ' s characteristics, such as composition and thickiness etc. with the intimately combining of theoretical, set - up and experimental research, the study on the analysis techniques of grazing emission x - ray fluorescence is developed, and the first set of grazing emission x - ray fluorescence setup is established. at the same time, the angular dependence of the fluorescence intensity with different thickness layer is measured. all the work in this thesis provides the basis for the further researches
本論文採用理論、裝置和實驗研究密切結合的方式,開展了掠射x射線熒光分析技術研究工作,在國內建立了首臺掠出射x射線熒光光譜分析裝置,並對不同厚度單層和雙層薄膜樣品在掠出射條件下產生的熒光光強與掠射角的對應博士學位論文:掠射x射線熒光分析技術研究關系進行了實驗測定。Trokel sl, srinivasan r, braren s. laser surgery of the cornea j. am j ophthalmol 1983 ; 96 710 - 715
王造文,龐國祥,鄭蔚,等.準分子激光光學角膜切削術治療近視隨診結果分析j .中華眼科雜志1995 ; 31 172 - 175The optical characteristics for stn - lcd with film compensation are determined mainly by the anisotropy of refractive index of liquid crystal material, the distribution of director in liquid crystal layer, the orientation of polaroids and the compensating films " orientations and their optical retardations
膜補償stn - lcd的光學傳輸特性主要取決于液晶材料的折射率各向異性( n _ e和n _ o ) 、液晶層中指向矢( director )沿層面法線的分佈、前後偏振片的方位角和補償膜的方位角及光學延遲。The chemical composition, micro - structure and optical properties and its application of tio2 thin films deposited on k9 glass by using reactive electron - beam evaporation ( reb ) are studied through sem, tem, xps, xrd, spectroscopic ellipsometry ( se ) and uv - vis spectrophotometer in the dissertation, and the progresses of nucleation and growth of thin film are discussed from the point of view of dynamics and thermodynamics so that a structure model of tio _ ( 2 ) thin film is brought forward
本文採用sem 、 tem 、 xps 、 xrd 、橢圓偏振儀( se ) 、 uv - vis分光光度計等分析手段系統地研究了電子束反應蒸發方法在k9玻璃上制備tio _ 2薄膜的成分、結構和光學性能以及tio _ 2薄膜在光學多層膜中應用,並開發了膜系設計軟體。文中還從動力學和熱力學角度分析了tio _ 2超薄膜的形核生長過程,得出了tio _ 2薄膜的組織結構模型。Standard lamp and diffusers are very important calibration elements, in chapter three, first uv and vuv radiometric standard for calibration are introduced. then the fabrication and characteristics of baso4 diffuser and alminium diffuser are researched, the baso4 diffuser ' s hemispheric reflectance and bi - directional reflectance distribution function were measured and compared with lambtian surface, and the deviation from that of lambtian surface is given. in the experiment, al diffuser ' s brdf is researched, obtain the change of spectral characteristic of al diffuser, compare al diffuser ' s brdf before and after coated with al + mgf2, and different al diffusers with different surface roughness
鋁漫反射板作為一個漫反射光學元件安裝在太陽紫外光譜監視器的入射狹縫前,太陽紫外光譜監視器在軌測量時,太陽輻射入射到鋁漫反射板后進入入射狹縫,光譜輻照度的角度是變化的,本章測量了鋁漫反射的相對雙向反射分佈函數,研究了鍍膜( al + mgf _ 2 )前後光譜反射率的變化,漫反射的光譜特性及漫反射板表面粗糙度對相對雙向反射分佈函數的影響,使得測量數據反演成為可能。Optics and optical instruments - contact lenses - rigid corneal and scleral contact lenses
光學和光學儀器.接觸鏡.硬質角膜和鞏膜接觸鏡Ftir and xps proved that ptcda and tcpc were attached on the surface of silicon by covalent ; afm and uv - vis showed ptcda and tcpc arranged orderly on surface of silicon ; through raman spectrum, we found that macrocycle molecules stand on surface of silicon, while macrocycle molecules in film by vacuum deposition parallel to silicon surface
紅外光譜和光電子能譜證明了?和酞菁成功的化學鍵合到單晶硅表面, afm和uv - vis吸收光譜表明了?和酞菁單層膜在硅基上呈有序排列。拉曼光譜的研究發現?酐分子大環以一定的角度立於硅基表面,而不是平行於基體表面,與蒸鍍手段得到的?酐膜的堆積形態完全不同。Ophthalmic optics - specifications for material, optical and dimensional properties of contact lenses - part 1 : rigid corneal and scleral contact lenses
眼科光學.隱形眼鏡材料光學和尺寸特性規范.硬質角膜和鞏膜隱形眼鏡An ophthalmic excimer laser system used to correct wavefront aberration is presented. the conception and zernike representation of wavefront aberration of human eyes recommended by osa are introduced. the connection of wavefront aberration and ablation profile is analyzed and a model for calculating ablation profile to correct wavefront aberration is presented. because the ablation depth on the boundary is nonzero and irregular, we present a model for calculating ablation profile in a transition zone
深入研究了準分子激光像差矯正系統,採用美國光學大會推薦的像差的定義、像差的zernike多項式表示方法,定量分析zernike多項式表示的像差與角膜切削量的關系,採用主觀式人眼像差儀測量像差,得出了像差矯正的角膜切削模型,並提出了一種採用過渡函數進行邊界切削的方法,用於可調的過渡區切削量的計算,為人眼單色像差的矯正提供了理論基礎。分享友人