Speckle averaging system for laser raster-scan image projection
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:
-
- Tracy, CA
- Livermore, CA
- Issue Date:
- 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
- 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.
Tiszauer, Detlev H, & Hackel, Lloyd A. Speckle averaging system for laser raster-scan image projection. United States.
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.
@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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Works referenced in this record:
Displacement Measurement from Double-exposure Laser Photographs
journal, April 1972
- Archbold, E.; Ennos, A. E.
- Optica Acta: International Journal of Optics, Vol. 19, Issue 4
Optical Surface Roughness Determination Using Speckle Correlation Technique
journal, January 1975
- Léger, D.; Mathieu, E.; Perrin, J. C.
- Applied Optics, Vol. 14, Issue 4
Formation and Localization of Holographically Produced Interference Fringes
journal, November 1969
- Tsuruta, Tadao; Shiotake, Norio; Itoh, Yoshinobu
- Optica Acta: International Journal of Optics, Vol. 16, Issue 6
Real-time measurement of surface roughness by correlation of speckle patterns
journal, January 1976
- Léger, D.; Perrin, J. C.
- Journal of the Optical Society of America, Vol. 66, Issue 11