Stereoscopic 3-D display with optical correction for the reduction of the discrepancy between accommodation and convergence

Takashi Shibata Takashi Kawai Keiji Ohta Masaki Otsuki Nobuyuki Miyake Yoshihiro Yoshihara Tsuneto Iwasaki Abstract — This paper describes a method for reducing the discrepancy between accommodation and convergence when viewing stereoscopic 3-D images. The method uses a newly developed stereoscopic 3-D display system with a telecentric optical system and a mobile LCD. The examination of a mono-focal lens showed that a correction lens having the appropriate refractive power and conditions for presenting stereoscopic 3-D images clearly reduces the discrepancy between accommodation and convergence. The authors also developed a stereoscopic 3-D display that uses dynamic optical correction to reduce the discrepancy between accommodation and convergence. The display equalizes the theoretical points of accommodation and convergence. The purpose of the development was to expand the regeneration range of a stereoscopic 3-D image having the appropriate accommodation. An evaluation of the developed display showed that it resolves the discrepancy between convergence and accommodation.