Despeckling Apparatus and Method
作者： Barret Lippey , William Beck , Ian Turner
DOI:
关键词: Speckle pattern 、 Optics 、 Projector 、 Beam splitter 、 Optical fiber 、 Materials science 、 Fiber 、 Graded-index fiber 、 Waveplate 、 Core (optical fiber)
摘要: An apparatus and method that reduces laser speckle by using stimulated Raman scattering in an optical fiber (710, 718). The core diameter length are selected to achieve a desired output color. adjustable despeckler is formed combining two fibers 718) parallel adjusting the amount of light each path with help rotatable waveplate (704) pola7rizer (706) as beam splitter. A homogenizing device (722) illuminates projector (724).
lens.org 参考文章(29)
Gerard L. Rafanelli, Claudio G. Parazzoli, Speckle suppression illuminator ,(1993)
Wolf Seelert, Andreas Diening, White light solid-state laser source ,(2006)
Donald F. Heller, Robert S. Anderson, John C. Walling, Method of and apparatus for laser-assisted therapy ,(1990)
David A. Coppeta, James J. Zambuto, David Goodwin, William Beck, Ian Turner, Optical System and Assembly Method ,(2009)
Terry A. Bartlett, Regis Grasser, Hongqin Shi, Speckle reduction in display systems that employ coherent light sources ,(2008)
William R. Markis, James E. Roddy, Speckle suppressed laser projection system with partial beam reflection ,(2001)
Omar Sqalli, Nicolas Descharmes, Speckle removal for a laser scanning projector ,(2010)
John Domm, Decohered laser light production system ,(2008)
Mahmoud Farhadiroushan, Peter Neil Kean, Tom Richard Parker, Method and apparatus for generation and transmission of high energy optical pulses for long range measurements ,(2004)
Jinhui Zhai, Haizhang Li, Israel J. Morejon, High efficiency LED optical engine for a digital light processing (DLP) projector and method of forming same ,(2005)