[8a-PB1-1~5] 3.3 Information photonics and image engineering

[8a-PB1-3] Realization of the viewing zone with azimuthal angle 180° and zenithal angle 90° in holographic 3-D display by using a convex parabolic mirror

〇Yusuke Sando³, Kazuo Satoh³, Takahiro Kitagawa³, Makoto Kawamura³, Daisuke Barada^1,2, Toyohiko Yatagai¹ (1.CORE, Utsunomiya Univ., 2.Gard. Sch. Eng. Utsunomiya Univ., 3.ORIST)

Keywords:3D display, computer-generated hologram, parabolic mirror

In holographic 3-D display, which can meet all physiological perceptual factors with respect to 3-D observation, the narrow viewing zone is a serious problem. In this study, a convex parabolic mirror is used to enlarge the viewing zone. In a convex parabolic mirror, there is a remarkable geometrical feature that the incident plane wave is converted into a diverging spherical wave from the focal point after the mirror reflection. By using this feature, we have realized the viewing zone of zenithal angle 90 deg. and azimuthal angle 180 deg.