holograms 中文意思是什麼

holograms 解釋
全息圖
  1. 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 。
  2. Fs laser directly writes computer - generated holograms

    飛秒激光直寫計算機產生全息圖
  3. They are holograms projected into the rooms from outside.

    它們都是從房間外面投射到房間里的全息照相。
  4. Some people have suggested that holograms should be made of all famous works of art.

    有人建議把所有著名的藝術品拍攝成全息照相。
  5. Among other things, they introduced an improved arrangement for generating holograms which is illustrated in fig 14. 36.

    他們除了別的東西以外，還引入了一種產生全息圖的改進裝置，如圖1436所示。
  6. Oh, my god. - holograms make great watchdogs

    -啊，真不敢想像-信息場是我的監督員
  7. Oh, my god. - holograms make great watchdogs.

    啊，真不敢想像-信息場是我的監督員. .
  8. In the second part, we introduce the formative processes, the optical geometries and the mathematical descriptions of several typical holograms particularly : the in - line holograph, the off - axis holograph, the image holograph, the rainbow holograph and the volume holograph

    第二部分詳細介紹了幾種典型全息圖：同軸全息圖、離軸全息圖、像全息圖、彩虹全息圖和體積全息圖的形成過程、光路設計及數學描述。
  9. Holograms are just prerecorded responses.

    全息圖是事先錄制的程序反應
  10. Holograms are just prerecorded responses

    那影像只是
  11. In order to facilitate the registration and evaluation of holograms, the holodiagram was developed.

    為了使全息圖易於記錄和計算，研究出一種全息析紋圖。
  12. In the end, the properties of volume holograms and the filtering principles of multiple photorefractive volume gratings are discussed by using volume holograms theory and bragg condition

    最後從體全息理論出發，結合布拉格條件，討論了多重體全息相位柵的濾波原理。
  13. ( 5 ) digital holograms of static particles and particle field ( multi - layer ) are recorded in the experiment. and the reconstructed particle images are gained using the envelope method with two different reconstructed waves - plane wave and spherical wave, respectively

    （ 5 ）從實驗上拍攝了單層靜態粒子靶和多層靜態粒子靶的數字全息圖，並分別用平面波和球面波實現了該模擬粒子場的數值再現，得到了清晰的粒子像。
  14. For a cubic crystal of 1cm 1cm 1cm, the horizontal and vertical selective angles are 0. 008 and 0. 41 respectively. so the system is capable of storing 10000 holograms. we also have made an off - line heater and an on - line heater, both of which are controlled by a temperature controller ( model eurotherm )

    對于邊長為1cm的立方晶體，復用系統在水平方向和垂直方向上的選擇角分別為0 . 008和0 . 41 ，能夠存儲10000幅數據頁；復位裝置的角度復位精度優於0 . 001 ；溫控加熱裝置的控溫精度為0 . 1 。
  15. The ability to store multiple holograms within a small volume of a storage material and to retrieve data pages with thousands of bits in parallel provides an attractive combination of high density and fast speed

    體全息存儲是一種適合高密度數據存儲的光學存儲技術，它同時具有存儲密度高、數據傳輸率高、數據搜索時間短等優勢。
  16. This method has some characters : during recording of the transmissive holograms the holographic grating placed in front of the holographic plate closefittingly is used as a spectroscope. the transmissive wave is served as the object wave and the diffraction wave through the holographic grating or the deflective reflect wave produced by the silicon slice is served as the reference wave, therefore the hologram is named as self - reference image hologram. the recording results are the off - axis holograms and the twin images can be separated successfully

    在記錄透射型全息圖時，將全息光柵緊貼置於記錄干板之前，而光柵起到了分光的作用，直透波作為全息圖的物光波，參考光是物光通過光柵后產生的衍射波；記錄反射型全息圖時將矽片置於記錄干板之後，利用反射矽片產生離軸參考光，因此系統僅需一束照明光束，參考光來自物光本身，因此稱之為自參考像全息圖。
  17. And then, the method for determining the optimum number of batches for fixing a given number of holograms is present based on above research

    北京工業大學理學博士學位論文一計算比較了以不同分批數存儲熱固定的多重全息圖的衍射效率。
  18. In the third part, we give the theoretical deduction and the experiment setup of the two self reference image holograms of the original objects illuminated by coherent light

    第三部分給出了相干光照明物體時形成的兩種自參考像全息圖：透射型自參考像全息圖和反射型自參考像全息圖。
  19. The synthetic holograms are mainly used as follows : advertisement picture ; decoration artwork ; cover and inset picture of magazine etc

    產品應用范圍：廣告畫?藝術裝飾畫?照相館?刊物封面和插頁等，特別有望在廣告、裝飾行業掀起全息展示浪潮。
  20. This paper is aiming at image recognition based on angle - multiplexed volume holographic correlator. the principles of the volume holographic storage are firstly introduced in this paper. they are the recording, reconstruction, diffraction efficiency and angular selectivity of volume holograms

    本論文首先介紹體全息存儲的基本概念和理論，它包括體全息圖的記錄和再現，體全息圖的衍射效率，體全息圖的水平、垂直角度選擇性等，並介紹了光學相關器和圖像識別。
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