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Proceedings Paper

Removal of speckle using a computer generated random phase hologram plate in green wavelength (532 nm)
Author(s): Sung Chul Shin; Young Woon Kim
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Paper Abstract

This paper investigates the qualified method of the removal of hot spot speckle produced by a green laser with long coherence length for a projection display system. The application of a random phase plate using a binary computer generated hologram pattern is successfully applied to reduce the speckle contrast ratio to 2%; this is below the minimum level of 4% which can be recognized by the human eye.

Paper Details

Date Published: 1 September 2006
PDF: 7 pages
Proc. SPIE 6288, Current Developments in Lens Design and Optical Engineering VII, 62880W (1 September 2006); doi: 10.1117/12.673500
Show Author Affiliations
Sung Chul Shin, LG Electronics (South Korea)
Young Woon Kim, LG Electronics (South Korea)

Published in SPIE Proceedings Vol. 6288:
Current Developments in Lens Design and Optical Engineering VII
Pantazis Z. Mouroulis; Warren J. Smith; R. Barry Johnson, Editor(s)

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