refractive power 中文意思是什麼

refractive power 解釋
屈光力
  • refractive : adj. 折射(光線等)的,有屈折[折射]力的。 refractive index 折射率,屈折率;折光指數。
  • power : n 1 力,力量;能力;體力,精力;(生理)機能;〈常 pl 〉才能。2 勢力,權力,權限;威力;政權;權...
  1. A correlative study on diopter and corneal refractive power in juvenile myopia

    青少年近視眼屈光度與角膜屈光力的相關性研究
  2. Objective evaluation of refractive power after lasik for myopia

    術后屈光度客觀評價的研究
  3. Compared with current instruments, the setup can decrease disturbance of disorder radiation by using double layer refractive index sample matching vessel, and it can increase collecting and transmitting efficiency of radiation by adopting single mode fiber with gradient refractive index lens. with a low power laser, the sample has a low scathe, and the laser and the measurement system can be integrated conveniently

    與現有的同類型儀器相比,該儀器採用雙層折射率樣品匹配池減少了雜散光的干擾;採用帶梯度折射率透鏡的單模光纖接收、傳輸散射光信號提高了散射光的收集傳輸效率;用低強度的激光避免了對樣品的輻射損傷,同時可以使激光器和系統集成在一起,整個系統小型實用。
  4. Analysis of measuring corneal refractive power by corneal topographer compared with by keratometer

    角膜地形圖儀和角膜曲率計測量角膜屈光力的差異分析
  5. Corneal refractive power measurement with orbscan - topography system versus keratometer

    角膜地形圖儀與角膜曲率計測量結果的比較
  6. However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down

    通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果,實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯,但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大;氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用,但經過高溫處理后這種作用消失;氮化硅薄膜能提高單晶硅和多晶硅的少子壽命,具有表面鈍化和體鈍化的雙重作用;氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度,進而使電池效率有不同程度(絕對轉換效率0
  7. Through power transmission, prism refraction and beam shifting experiments, various electromagnetic characteristics, such as refractive index, loss and s parameters, and various shaped left - handed material samples could be measured and verified between each other. 2. the beam shifting experiment is designed and realized to further verify the lh properties

    通過功率透射、棱鏡折射和波束位移三種實驗平臺,可以對多種形狀的異向介質材料的折射率、損耗等電磁特性進行準確的測量和相互驗證; 2 、提出了波束位移實驗以進一步驗證介質材料的特性。
  8. In this paper, plasma - enhanced chemical vapor deposition ( pecvd ) technique was used to deposit the dielectric p - sio2 films and p - sion films on the silicon wafer under the conditions of low temperature and low pressure with teos organic sourse. this research was focused on the evaluation of film growth, hardness, stress, resistance and refractive index, by changing the experimental parameters including rf power, substrate temperature, chamber pressure, and the flow rates of teos, o2, n2. the results showed that the p - sio2 film was smooth, dense, and structurally amorphous

    實驗結果顯示,用pecvd法淀積的p - sio _ 2膜是一表面平坦且緻密的非晶質結構的薄膜,與矽片襯底之間有良好的附著性;在中心條件時生長速率可控制在2600a / min左右;在基板溫度410時有最大的硬度可達16gpa ;其應力為壓縮應力,可達- 75mpa ;薄膜的臨界荷重為46 . 5un 。
  9. Based on the requirement and target of the projects, firstly, pcf bragg grating are investigated theoretically and experimentally. moreover, the effects of filling high refractive index material ( nematic liquid crystal, nlc ) in pcfs on the transmission mechanism and propagation properties are studied by using plane - wave method and finite - element method ( fem ), farther, several novel pcfs are proposed and designed. lastly, we propose and demonstrate a clad - pumped er3 + / yb3 + - codoped fiber laser, which integrate all performances of broad - band tunable wavelength, uniform output power spectrum, high repeat frequency and high average power to together

    本論文選題于國家973 、 863以及國家自然科學基金等項目,結合課題的要求和主要目標,在對光子晶體光纖( pcfs )傳輸特性研究的基礎上,首先對光子晶體光纖光柵進行了理論和實驗研究;然後,採用平面波展開法和有限單元法分析了在光纖的空氣孔中填充高折射率液晶對光纖傳導機制和傳輸特性的影響,提出並設計了幾種新型光子晶體光纖;最後,提出並研製成功連續可調諧、輸出功率譜均衡的全光纖化、高功率包層泵浦鉺鐿共摻光纖激光器實驗樣機。
  10. Most refractive procedures change the eye ' s focusing power by reshaping the cornea ( for example, by removing tissue )

    大多數的屈光手術通過角膜的變形改變眼的聚焦功效(例如,通過切除組織) 。
  11. Implantation of the intraocular lenses eliminates the need of wearing of aphakic glasses with thick and heavy lenses. however, most patients may still have a low degree of refractive error and need a pair of low power spectacles, depending on their visual requirement

    在摘除白內障后,植入人工晶體可令病者避免配戴笨重的無晶體矯正眼鏡,但很多病人仍會有輕度的近視遠視或散光,故仍會按視力的需求,考慮配戴一對輕度的眼鏡。
  12. The maximum one side output power of uncoated lasers attain to 2w and the minimum threshold current is 120ma. thereafter, algalnp and algaas material system lateral real refractive index waveguided 650nm / 780nm double wavelength multiquantum well lasers for dvd - rom driver and dvd player ' s optical pickup system are simulated and designed on the basis of the experiment of conventional lasers and the former research of tunneling cascade devices

    在此之後,結合650nm附近波長的常規algainp gaas多量子阱激光器的實驗結果與以往隧道級聯器件的研究,設計並模擬分析了基於algainp材料與algaas材料的可用於dvd - rom驅動器和dvd播放機光學讀取系統的側向實折射率導引隧道級聯650nm 780nm雙波長多量子阱激光器。
  13. Since the effects of turbulent atmosphere is prominent, this thesis concentrates on the effects of the turbulent atmosphere on the laser beam propagation in the atmosphere. the atmosphere refractive index model, especially refractive index fluctuation, power spectrum, phase spatial structure constant are introduced in the following and the specific structure function is achieved

    根據大氣折射率模型,以及折射率起伏功率譜密度和相位空間結構常數,得到具體的結構函數;通過長程情況下的馬爾科夫近似,得到了互相關函數,對數振幅和相位協方差函數。
  14. Determination of the optical deviation and refractive power of safety glass for vehicle glazing

    汽車安全玻璃光偏轉角和折射值測定
  15. The influence of using different methods to measure corneal refractive powers in determining the power of intraocular lens

    不同儀器測量角膜曲率計算人工晶體屈光度的可行性分析
  16. Since the cornea carries 2 3 of the eyes total refractive power, naturally most refractive surgeries focus on the cornea

    因角膜提供了眼睛總折射功能的三分之二,自然而然,大多數激光矯視則集中於改變角膜弧度之上。
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