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Proceedings Paper

Digital holographic display
Author(s): Cheok Peng Lee; Yong Poo Chia; Vijay Raj Singh; A. Asundi; Xuan Jie Khoo; Kiat Long Tay; Junxiang Zhou
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Paper Abstract

This paper describes how a Digital Holographic Projector is designed and implemented to project two-dimension virtual images onto the volumetric display media. In this research, we focus on the method to create 3D models, diffractive algorithm and the display media. A 3D model is generated based on the 360° view with views at every 10° interval from a 3D perspective view software. The hologram interference fringes are re-producing from the Fraunhofer algorithm. In order to make more flexible and portable, a Compact Vision System is introduced to storage multiply interference fringes. At the same time, the fringes are sent out at 30 Hz frame by frame continually to the digital micro-mirror1. With the presence of Nd: YVO4 green laser and various optical components, the 3D 360° hologram images are dynamically reconstructed and projected onto the high speed rotating diffuser forming a 3D model at any viewing angle on the volumetric display media. Both volumetric display media, wet and dry methods are demonstrated to show their feasibility and convenience. Finally, the dry volumetric technique with vertical projection mounting is adopted and as the result shown that the speckle noise is significance reduced.

Paper Details

Date Published: 14 April 2010
PDF: 8 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75225S (14 April 2010); doi: 10.1117/12.852468
Show Author Affiliations
Cheok Peng Lee, Ngee Ann Polytechnic (Singapore)
Yong Poo Chia, Ngee Ann Polytechnic (Singapore)
Vijay Raj Singh, Nanyang Technological Univ. (Singapore)
A. Asundi, Nanyang Technological Univ. (Singapore)
Xuan Jie Khoo, Hwa Chong Institution (High School Section) (Singapore)
Kiat Long Tay, Hwa Chong Institution (High School Section) (Singapore)
Junxiang Zhou, Hwa Chong Institution (High School Section) (Singapore)


Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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