全像技術的類比資訊儲存與重建

本論文主要研究類比全像影像資訊儲存與重建，探討全像拍攝技術的原理並建立優化彩虹全像片的拍攝條件。全像拍攝依照參考光與物體光的光路設計可分為同軸式與離軸式，而根據參考光與物體光入射至全像片的方向可分為穿透式與反射式。完成拍攝紀錄資訊後，底片必須經過顯影、定影、漂白等沖洗過程。本論文進行實驗各種全像拍攝方式以及底片沖洗過程，分析所得立體影像的繞射效率、可視角等結果。彩虹全像片經由二次拍攝方法使全像片得以使用白光進行重建，其影像可呈現多彩的現象，使全像影像更具視覺效果，本論文藉由二次拍攝條件的設定，包括狹縫的尺寸及位置，進行優質彩虹全像拍攝的討論，包含影像景深效果及色彩分布變化。拍攝全像片需要同調性光源，目前大多使用氣體雷射，本研究以半導體雷射之雷射光筆的進行實驗，探討雷射光筆同調性及光強分布的光源特性，進而討論降低全像拍攝成本方法，使全像術更能生活化應用。立體影像是未來影像顯示科技重點之一，其中影像「多彩性」是研究重要項目，本論文分析不同三乙醇胺溶液的浸泡條件與波長變化的關係，亦使用雷射光筆進行低成本多波長混光多彩全像片製作。

關鍵字

全像技術；雷射；彩虹全像；雷射光筆；三乙醇胺

並列摘要

The paper mainly focused on studying the analogical data recording and reconstruction using holographical technology. It aims to study principle and optimize the rainbow holography. Holography is divided into in-line and off-line arrangements in terms of design of reference and object light beams. It's also divided into transmission and reflection holography in terms of light incident direction of reference and object beams. The holographical plate has to go through the procedure of development、fixing、bleaching for yielding the hologram after recording. This paper built different recording arrangements of holography studied development methods of holographical plate. The 3D image reconstruction of hologram discussed diffraction efficiency and viewable angle. Rainbow hologram is made by two-step method and reconstructed by white light. The reconstructed image can show dispersion multiple phenomenon and yields better vision. The optimization study for reconstructed image depth and color distribution of rainbow holography discussed the influence slit gap size and distance to master hologram. Holography needs coherent light and gas lasers are nowpopularly applied light source. This paper used laser pointer for holographical to popularize the holographical application due to it's relatively cheaper price. This paper measured and analysed light coherence and brightness distribution of applied laser pointer. Three-dimensional color image production is one of the most important developments for display technology in the future. This paper used triethanolamin solution to immerse the holographical plate and discussed the influence of immersed durations as well as solution concentrations of color property of the reconstructed image. The mixed light source used the cheaper laser pointers.

並列關鍵字

Holography ； Laser ； Rainbow Hologram ； Laser Pointer ； Triethanolamin

參考文獻

[2]T. Okoshi, “Three-Dimensional Image Techniques,” New York: Academic Press, 1976, pp. 186-285.

[3]D. Gabor, " Microscopic by reconstructed wavefronts," Proc. of the Physical Society of American, vol. A197 , 1949, pp. 454.

[4]D. Gabor, " A new microscopic principle," Nature, vol. 161, 1948, pp. 777-778.

[6]E. N. Leith and J. Upatieks, " Wavefront reconstruction with diffused illumination and three dimensional objects," JOSA, vol. 154, 1964, pp. 1295-1301.

[9]M. H. Horman, " An application of wavefront reconstruction to interfermetry," Applied Optics, vol. 34, no. 3, 1965, pp. 333-336.

國際替代計量

全像技術的類比資訊儲存與重建

全文下載

主題瀏覽