US Patent No: 5,475,617

Number of patents in Portfolio can not be more than 2000

Process of reconstructing a single data profile of rapidly measured hemispherical scattered or radiated light

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A portable scatterometer and/or an angular radiated light measurement instrument that uses a measurement head which includes a double tapered fiber optic bundle with a concave front face to simultaneously collect partial or full hemispherically scattered light reflected from a point on a surface illuminated by a depolarized, telescopically focused, laser diode source, the light rays being received by each fiber normal to its face. The image of the collected light beams is minified and coupled by the fiber optic bundle into an anti-blooming CID camera with an x-y scanning area array which converts the light beams to electrical signals. In a unique real time, computer-controlled data acquisition and reconstruction process, a frame grabber and a unique algorithm are used to collect over 200,000 points of light, reconstruct the data into a 2D or 3D scatter profile and display the results, all within one second. Multiple embodiments of the tapered fiber optic bundle collector include a full hemispherical version with the laser source directed through the boule, a unitary boule fused from two tapered halves, a linear in-plane tapered bundle and a partial taper with imaging lens mode. Alignment mechanisms provide z-translation, azimuth, and focus adjustments. The measurement unit is in a compact, rugged aluminum housing which is adapted to be secured to a production line machine for a variety of services, such as, a quality control inspection device.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BREAULT RESEARCH ORGANIZATION, INC.TUCSON, AZ8

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Castonguay, Raymond J Tucson, AZ 8 88

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ALLIEDSIGNAL INC. (1)
5,293,049 Aerosol discriminator for particle discrimination 4 1992
 
AT&T Bell Laboratories (1)
5,311,598 Method and apparatus for surface inspection 64 1990
 
BATTELLE MEMORIAL INSTITUTE (1)
5,301,240 High-speed video instrumentation system 40 1992
 
Nikuni Machinery Industrial Co., Ltd. (1)
5,200,628 Method for distinguishing particles in fluid and apparatus for the same including plural sensors and weighting 6 1992
 
OTSUKA ELECTRONICS CO., LTD. (1)
5,015,094 Particle size measuring system 11 1989

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
BREAULT RESEARCH ORGANIZATION, INC. (3)
5,729,640 Process of acquiring with an X=Y scannable array camera light emanted from a subject 11 1995
5,640,246 Apparatus for measuring reflected light utilizing spherically arranged optical fibers 24 1995
5,615,294 Apparatus for collecting light and its method of manufacture 13 1995
 
NANOMETRICS INCORPORATED (3)
6,856,408 Line profile asymmetry measurement using scatterometry 83 2002
7,515,279 Line profile asymmetry measurement 8 2004
7,639,371 Line profile asymmetry measurement 1 2009
 
ENGINEERING SYNTHESIS DESIGN, INC. (2)
7,256,895 Spherical scattering-light device for simultaneous phase and intensity measurements 4 2004
8,269,980 White light scanning interferometer with simultaneous phase-shifting module 0 2010
 
UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC. (2)
6,203,861 One-step rapid manufacturing of metal and composite parts 33 1998
6,526,327 One-step rapid manufacturing of metal and composite parts 56 2000
 
ACTIVISION PUBLISHING, INC. (1)
5,903,271 Facilitating viewer interaction with three-dimensional objects and two-dimensional images in virtual three-dimensional workspace by drag and drop technique 54 1997
 
BST/Pro Mark (1)
5,838,840 Inspection device using a field mode video camera with interpolation to replace missing pixels 8 1996
 
Metroptic Technologies, Ltd. (1)
6,094,269 Apparatus and method for optically measuring an object surface contour 28 1998
 
MICROSOFT CORPORATION (1)
7,929,142 Photodiode-based bi-directional reflectance distribution function (BRDF) measurement 1 2008