Design and Analysis of Table-top Floating Image System with Tire-lens Structure

• Main Authors: Tai, Chun-Hsin, 戴俊欣
• Other Authors: Shieh, Han-Ping
• Format: Others
• Language: en_US
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/49brhk

碩士 === 國立交通大學 === 光電工程研究所 === 106 === As time goes by, kinds of products is getting more and more. The display technologies evolve from flat panel display at the very beginning into 3D display nowadays. The 3D display can provide diversifying features with providing a better visual experience, in the near future, and being combined with touch technologies; therefore, how to make 3D image display provide more comfortable image quality and enhance the depth perception will be main gooal of 3D image display technology in the future. Those 3D images provided by common commercial 3D display and 3D film technologies are only for viewers watching with direct viewing angle. The advantage is that it cannot provide stereoscopic vision, so as to reduce the stereoscopic and depth perception of the image. In recent years, science fiction movies, adding a lot of floating images, image interaction and other parts, let people imagine a lot. Among all the present 3D floating image display technologies, each has its own advantages and disadvantages. However, their fatal shortcomings, such as: the oversized volume, small viewing zone, high cost, leads to that the technology has been limited and not widely used. In order to make 3D floating image display technologies more popular, forming 3D floating images with more convenient and inexpensive ways would be necessary to achieve. In this study, a floating image display system based on the imaging principle of one-dimensional integral image is proposed. In the system configuration, the 3D floating image is expected to be generated by tire-lens, pico-projectors and pinhole array. In addition, we will also verify the optical behavior of the light field that passing through the whole structure by using optical software LightTools. In the simulation results, the light field located at the edge area of display region is found that there are problems, such as：distortion, he light field center does not locate at the same height and other issues which caused by different optical path length of the opposite projector. Therefore, in this study, we will analyze the imperfect light field from different aspects, such as light distribution, light efficiency, image quality, and establish a set of analytical methods to help the realization of the system in the future and signal output.