Patents by Inventor John V. Sandusky
John V. Sandusky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9750413Abstract: Diffuse optical tomography systems and methods are described herein. In a general embodiment, the diffuse optical tomography system comprises a plurality of sensor heads, the plurality of sensor heads comprising respective optical emitter systems and respective sensor systems. A sensor head in the plurality of sensors heads is caused to act as an illuminator, such that its optical emitter system transmits a transillumination beam towards a portion of a sample. Other sensor heads in the plurality of sensor heads act as observers, detecting portions of the transillumination beam that radiate from the sample in the fields of view of the respective sensory systems of the other sensor heads. Thus, sensor heads in the plurality of sensors heads generate sensor data in parallel.Type: GrantFiled: October 3, 2013Date of Patent: September 5, 2017Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: John V. Sandusky, Todd A. Pitts
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Publication number: 20150313470Abstract: Diffuse optical tomography systems and methods are described herein. In a general embodiment, the diffuse optical tomography system comprises a plurality of sensor heads, the plurality of sensor heads comprising respective optical emitter systems and respective sensor systems. A sensor head in the plurality of sensors heads is caused to act as an illuminator, such that its optical emitter system transmits a transillumination beam towards a portion of a sample. Other sensor heads in the plurality of sensor heads act as observers, detecting portions of the transillumination beam that radiate from the sample in the fields of view of the respective sensory systems of the other sensor heads. Thus, sensor heads in the plurality of sensors heads generate sensor data in parallel.Type: ApplicationFiled: October 3, 2013Publication date: November 5, 2015Applicant: Sandia CorporationInventors: John V. Sandusky, Todd A. Pitts
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Patent number: 7995191Abstract: A scannerless 3-D imaging apparatus is disclosed which utilizes an amplitude modulated cw light source to illuminate a field of view containing a target of interest. Backscattered light from the target is passed through one or more loss modulators which are modulated at the same frequency as the light source, but with a phase delay ? which can be fixed or variable. The backscattered light is demodulated by the loss modulator and detected with a CCD, CMOS or focal plane array (FPA) detector to construct a 3-D image of the target. The scannerless 3-D imaging apparatus, which can operate in the eye-safe wavelength region 1.4-1.7 ?m and which can be constructed as a flash LADAR, has applications for vehicle collision avoidance, autonomous rendezvous and docking, robotic vision, industrial inspection and measurement, 3-D cameras, and facial recognition.Type: GrantFiled: June 29, 2006Date of Patent: August 9, 2011Assignee: Sandia CorporationInventor: John V. Sandusky
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Patent number: 7495748Abstract: Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.Type: GrantFiled: October 18, 2007Date of Patent: February 24, 2009Assignee: Sandia CorporationInventors: John V. Sandusky, Todd Alan Pitts
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Patent number: 7420656Abstract: Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.Type: GrantFiled: August 20, 2007Date of Patent: September 2, 2008Assignee: Sandia CorporationInventors: John V. Sandusky, Todd Alan Pitts
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Patent number: 7053991Abstract: Methods for differential numerical aperture analysis of samples, utilizing angle-of-incidence measurements resulting from variable illumination or observation numerical apertures, or both. Metrology applications are provided, and more particularly including scatterometer, ellipsometer and similar analysis methods, including bi-directional reflectance or transmission distribution function measurement.Type: GrantFiled: June 10, 2004Date of Patent: May 30, 2006Assignee: Accent Optical Technologies, Inc.Inventor: John V. Sandusky
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Publication number: 20040246481Abstract: Methods for differential numerical aperture analysis of samples, utilizing angle-of-incidence measurements resulting from variable illumination or observation numerical apertures, or both. Metrology applications are provided, and more particularly including scatterometer, ellipsometer and similar analysis methods, including bi-directional reflectance or transmission distribution function measurement.Type: ApplicationFiled: June 10, 2004Publication date: December 9, 2004Applicant: Accent Optical Technologies, Inc.Inventor: John V. Sandusky
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Patent number: 6750968Abstract: Devices and methods for differential numerical aperture analysis of samples, utilizing angle-of-incidence measurements resulting from variable illumination or observation numerical apertures, or both. Metrology applications are provided, and more particularly including scatterometer, ellipsometer and similar analysis methods, including bi-directional reflectance or transmission distribution function measurement. The provided devices and methods enable analysis of critical dimensions of samples utilizing a minimum of moving parts, with the range of striking or scattering angles varied by a variable numerical aperture or apertures.Type: GrantFiled: October 2, 2001Date of Patent: June 15, 2004Assignee: Accent Optical Technologies, Inc.Inventor: John V. Sandusky
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Publication number: 20020039184Abstract: Devices and methods for differential numerical aperture analysis of samples, utilizing angle-of-incidence measurements resulting from variable illumination or observation numerical apertures, or both. Metrology applications are provided, and more particularly including scatterometer, ellipsometer and similar analysis methods, including bi-directional reflectance or transmission distribution function measurement. The provided devices and methods enable analysis of critical dimensions of samples utilizing a minimum of moving parts, with the range of striking or scattering angles varied by means of a variable numerical aperture or apertures.Type: ApplicationFiled: October 2, 2001Publication date: April 4, 2002Inventor: John V. Sandusky