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Proceedings Paper

A holographic display system based on DMD using LED as light source
Author(s): Ping Su; Bingchao Cheng; Wenbo Cao; Jianshe Ma; Liangcai Cao
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Paper Abstract

Digital Micro-mirror Device (DMD) is an important tool in holographic display owning high-speed refresh rate and good diffraction efficiency. However, the reconstruction light source has great impact to image quality. A new holographic display system based on DMD for using light-emitting diodes (LEDs), is proposed in this paper. LEDs are chosen as light source to replace the laser, since it can reduce the speckle noise effectively, which is caused by both temporal and spatial coherence of laser. In order to solve the problem using LED as DMD holographic display light source, the characteristics of DMD as the display device for holographic displays are studied. An aspheric collimator for LED is used to improve the optical efficiency. A spatial filter is used to improve the coherence. The experimental results show that this lighting system has a good display quality.

Paper Details

Date Published: 14 September 2016
PDF: 6 pages
Proc. SPIE 9970, Optics and Photonics for Information Processing X, 99700B (14 September 2016); doi: 10.1117/12.2236761
Show Author Affiliations
Ping Su, Tsinghua Univ. (China)
Bingchao Cheng, Tsinghua Univ. (China)
Wenbo Cao, Ningbo Univ. (China)
Jianshe Ma, Tsinghua Univ. (China)
Liangcai Cao, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 9970:
Optics and Photonics for Information Processing X
Khan M. Iftekharuddin; Abdul A. S. Awwal; Mireya García Vázquez; Andrés Márquez; Mohammad A. Matin, Editor(s)

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