New methods for producing 360°holograms

• Main Authors: Shih,Ming-Haung, 施明煌
• Other Authors: Hu, Ching-Piao
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/94875913637581071639

碩士 === 國立臺灣大學 === 機械工程研究所 === 81 === In this paper,we have used flat films to produce 360° reflection holograms which can display real images floating above the films. Furthermore, the distance of the reconstructed image from the hologram is cnotrollable. Here, four methods of producing 360°hologram are suggested. They are all two-step holograms, but their way of making H1 are different. The four different methods of making H1 are: (1) Recording holograms using flat films, the object beam and the reference beam are on the same axis perpendicular to the film plane. (2) Recording holograms using conical films, the object beam and the reference beam are on the same axis perpendicular to the film plane. (3) Recording holograms using flat films, the object beam and the reference beam are off axes. (4) Recording holograms using flat films, and using two reference beams. One of the reference beam is on the same axis with the object beam, and the other is not. Finally we conclude with ways for producing 360°holograms with wide-viewing range , and suggest some of its applications.