Speckle averaging system for laser raster-scan image projection

Title: Speckle averaging system for laser raster-scan image projection

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Abstract

The viewers' perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts.

Inventors:

Tiszauer, Detlev H ^[1]; Hackel, Lloyd A ^[2]

Tracy, CA
Livermore, CA

Issue Date:: 1998-03-17

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 871423

Patent Number(s):: 5729374

Application Number:: 08/497965

Assignee:: Regents of University of California (Oakland, CA)

Patent Classifications (CPCs):: G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B26/0816 - {by means of one or more reflecting elements}
G02B27/48 - Laser speckle optics

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: speckle; averaging; laser; raster-scan; image; projection; viewers; perception; laser-scanned; modified; eliminated; addition; optical; deflection; effectively; realization; viewing; screen; viewer; scan; field; accomplished; introduction; spurious; imaging; artifacts; viewing screen; scanned image; image projection; /359/

Citation Formats


                    Tiszauer, Detlev H, and Hackel, Lloyd A. Speckle averaging system for laser raster-scan image projection.  United States: N. p., 1998. 
        Web.

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                    Tiszauer, Detlev H, & Hackel, Lloyd A. Speckle averaging system for laser raster-scan image projection.  United States.

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                    Tiszauer, Detlev H, and Hackel, Lloyd A. Tue .  
        "Speckle averaging system for laser raster-scan image projection".  United States.  https://www.osti.gov/servlets/purl/871423.

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@article{osti_871423,

  title        = {Speckle averaging system for laser raster-scan image projection},

  author       = {Tiszauer, Detlev H and Hackel, Lloyd A},

  abstractNote = {The viewers' perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1998},

  month        = {3}

}

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