
Proceedings Paper
Holographic display with LED illumination based on phase-only spatial light modulatorFormat | Member Price | Non-Member Price |
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Paper Abstract
A new holography display technology based on a phase-only spatial light modulator (SLM) is proposed. The normal use
of laser diode (LD) light source led to the inevitable speckle noise introduced by the coherence of the laser beam.
Algorithms and special diffractive optical elements have been proposed to reduce the speckle noise. In this paper, a
selected light-emitted diode (LED) light source was used in the holographic display system to replace the LD light
source. The temporal coherence and spatial coherence of the LED were studied. Though the temporal coherence of LED
is short, the spatial coherence of the light field can be improved by optimizing the optical paths such as decreasing the
emitting area of the light source and so on. A high-power LED with a narrow band-width was selected. An algorithm to
generate computer-generated hologram for the SLM was proposed. The phase-only holograms for the display were
computed using the coherent light algorithm. Then the phase holograms were uploaded to the SLM. LED was used as the
light source to illuminate the SLM uniformly, and the reconstructions can be observed by naked eye. It is demonstrated
that LED is an acceptable light source for holographic display. The reconstruction results showed that the speckle noise
and multiple reflections were eliminated when LED was used as the light source.
Paper Details
Date Published: 27 November 2012
PDF: 6 pages
Proc. SPIE 8559, Information Optics and Optical Data Storage II, 85590B (27 November 2012); doi: 10.1117/12.999913
Published in SPIE Proceedings Vol. 8559:
Information Optics and Optical Data Storage II
Feijun Song; Hui Li; Xiudong Sun; Francis T. S. Yu; Suganda Jutamulia; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)
PDF: 6 pages
Proc. SPIE 8559, Information Optics and Optical Data Storage II, 85590B (27 November 2012); doi: 10.1117/12.999913
Show Author Affiliations
Published in SPIE Proceedings Vol. 8559:
Information Optics and Optical Data Storage II
Feijun Song; Hui Li; Xiudong Sun; Francis T. S. Yu; Suganda Jutamulia; Kees A. Schouhamer Immink; Keiji Shono, Editor(s)
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