Improvement of the mismatch of visual information by the stereoscopic 3-D display system using mono-focal lens

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  • SHIBATA Takashi
    Graduate School of Global Information and Telecommunication Studies, Waseda University
  • KAWAI Takashi
    Graduate School of Global Information and Telecommunication Studies, Waseda University
  • OHTA Keiji
    Graduate School of Global Information and Telecommunication Studies, Waseda University
  • YOSHIHARA Yoshihiro
    Arisawa Manufacturing Co. Ltd.
  • INOUE Tetsuri
    Department of Network Engineering, Kanagawa Institute of Technology
  • IWASAKI Tsuneto
    Department of Ophthalmology, University of Occupational and Environmental Health
  • TERASHIMA Nobuyoshi
    Graduate School of Global Information and Telecommunication Studies, Waseda University

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Other Title
  • 単焦点レンズを用いた立体映像観察による視覚系の不整合の改善
  • タンショウテン レンズ オ モチイタ リッタイ エイゾウ カンサツ ニ ヨル シカクケイ ノ フセイゴウ ノ カイゼン

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Abstract

This paper describes an examination of a stereoscopic 3-D display system using a correction lens. The purpose of the system is to reduce the accommodation and convergence difference during viewing stereoscopic 3-D images by using simple technique. This correction lens is a mono-focal lens, and added to the polarized filter glasses. In this study, the authors carried out three experiments in order to examine the appropriate utilization conditions and effects of the correction lens. In experiment 1, the refractive power of correction lens was examined under six conditions in which distances of accommodation and convergence were theoretically equal. In experiment 2, the presenting condition of stereoscopic 3-D images suitable for the correction lens was examined by measurement of refractions during viewing visual target that moved in depth direction. In experiment 3, the effectiveness of the correction lens was examined by using the utilization conditions obtained in experiment 1 and 2. From the results of the experiments, the following conclusions were drawn. (1) By the optical correction using a convex lens, accommodation while viewing stereoscopic 3-D images is shifted in the distance. And the optical correction is effective in the short-distance observation with respect to visibility and eyestrain. (2) Using a correction lens with the appropriate refractive power and setting the appropriate conditions for presenting stereoscopic 3-D images reduced the difference between accommodation and convergence.

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