Patents by Inventor Faramarz Farahi
Faramarz Farahi 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: 10203195Abstract: A measurement method and system include illuminating an object to be measured with light at two different wavelengths and an incident angle; capturing an image of the object; detecting a frequency of an interference pattern from the image using Fractional Bi-Spectrum Analysis; and calculating a thickness of the object based on the Fractional Bi-Spectrum Analysis. The thickness is calculated based on a relationship between the thickness and the frequency of the interference pattern. The Fractional Bi-Spectrum Analysis is performed on a linear medium with the two different wavelengths being known.Type: GrantFiled: September 13, 2017Date of Patent: February 12, 2019Assignee: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Faramarz Farahi, Gelareh Babaie, Mehrdad Abolbashari
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Patent number: 10007109Abstract: The present disclosure provides wavelength discriminating imaging systems and methods that spatially separate (over different depths) the wavelength constituents of an image using a dispersive lens system or element, such that this spectral information may be exploited and used. The wavelength constituents of an image are deconstructed and identified over different depths using a dispersive lens system or element.Type: GrantFiled: March 19, 2014Date of Patent: June 26, 2018Assignee: THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Mehrdad Abolbashari, Faramarz Farahi
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Publication number: 20180128591Abstract: A measurement method and system include illuminating an object to be measured with light at two different wavelengths and an incident angle; capturing an image of the object; detecting a frequency of an interference pattern from the image using Fractional Bi-Spectrum Analysis; and calculating a thickness of the object based on the Fractional Bi-Spectrum Analysis. The thickness is calculated based on a relationship between the thickness and the frequency of the interference pattern. The Fractional Bi-Spectrum Analysis is performed on a linear medium with the two different wavelengths being known.Type: ApplicationFiled: September 13, 2017Publication date: May 10, 2018Applicant: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Faramarz FARAHI, Gelareh BABAIE, Mehrdad ABOLBASHARI
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Patent number: 9945721Abstract: The present disclosure provides wavelength discriminating imaging systems and methods that spatially separate (over different depths) the wavelength constituents of an image using a dispersive element or lens, such that this spectral information may be exploited and used. The wavelength constituents of an image are deconstructed and identified over different depths using the dispersive element or lens.Type: GrantFiled: September 15, 2015Date of Patent: April 17, 2018Assignee: The University of North Carolina at CharlotteInventors: Mehrdad Abolbashari, Faramarz Farahi
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Patent number: 9389105Abstract: The present disclosure provides distributed sensor grid, surface, and skin systems and methods that utilize compressive sampling systems and methods for reading and processing the outputs of sensor arrays (serial and/or parallel) such that increased speed can be achieved. These sensor arrays can be functionalized or sensitized in any desired manner and functions are derived from the outputs, as opposed to individual data points. The sensor arrays can be made in the form of a textile, a fiber optic network, a MEMS network, or a CMOS camera, for example. In general, in accordance with the systems and methods of the present disclosure, a Code is applied to a distributed sensor as part of the compressive sampling technique and derives the functions.Type: GrantFiled: June 20, 2013Date of Patent: July 12, 2016Assignee: The University of North Carolina at CharlotteInventors: Faramarz Farahi, Mehrdad Abolbashari
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Patent number: 9250186Abstract: Novel measurement techniques based on moiré techniques and optical frequency conversion. For example, in the IR realm, the configuration can be any moiré configuration, the detector is an IR detector, and the light source can be at any wavelength. The optical configuration, the detector, and the type of light source depend on the physical properties of object/scene and the parameter(s) to be measured.Type: GrantFiled: March 18, 2014Date of Patent: February 2, 2016Assignee: The University of North Carolina at CharlotteInventors: Faramarz Farahi, Mehrdad Abolbashari, Gelareh Babaie
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Publication number: 20160003675Abstract: The present disclosure provides wavelength discriminating imaging systems and methods that spatially separate (over different depths) the wavelength constituents of an image using a dispersive element or lens, such that this spectral information may be exploited and used. The wavelength constituents of an image are deconstructed and identified over different depths using the dispersive element or lens.Type: ApplicationFiled: September 15, 2015Publication date: January 7, 2016Applicant: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Mehrdad ABOLBASHARI, Faramarz FARAHI
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Publication number: 20150255657Abstract: A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the cladding layer being configured to allow ambient light to pass through the cladding layer, and an exit port located proximate an end of the waveguide. The PV system further comprises one or more solar cells disposed at the exit port of the waveguide. The waveguide is configured to guide light to the one or more solar cells. Another photovoltaic (PV) system includes a waveguide comprising an active cladding layer hosting material configured to absorb and emit light, and a core layer configured to confine light emitted by the active cladding layer. The PV system further includes one or more solar cells disposed proximate the waveguide. The core layer is configured to guide light to the one or more solar cells.Type: ApplicationFiled: March 5, 2015Publication date: September 10, 2015Inventor: Faramarz FARAHI
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Publication number: 20150022658Abstract: A measurement method and system include illuminating an object to be measured with light at two different wavelengths and an incident angle; capturing an image of the object; detecting a frequency of an interference pattern from the image using Fractional Bi-Spectrum Analysis; and calculating a thickness of the object based on the Fractional Bi-Spectrum Analysis. The thickness is calculated based on a relationship between the thickness and the frequency of the interference pattern. The Fractional Bi-Spectrum Analysis is performed on a linear medium with the two different wavelengths being known.Type: ApplicationFiled: July 16, 2014Publication date: January 22, 2015Applicant: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Faramarz FARAHI, Gelareh BABAIE, Mehrdad ABOLBASHARI
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Publication number: 20140374603Abstract: The present disclosure provides novel measurement techniques based on moiré techniques and optical frequency conversion. For example, in the IR realm, the configuration can be any moiré configuration, the detector is an IR detector, and the light source can be at any wavelength. The optical configuration, the detector, and the type of light source depend on the physical properties of object/scene and the parameter(s) to be measured.Type: ApplicationFiled: March 18, 2014Publication date: December 25, 2014Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Faramarz FARAHI, Mehrdad ABOLBASHARI, Gelareh BABAIE
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Publication number: 20140375776Abstract: The present disclosure provides wavelength discriminating imaging systems and methods that spatially separate (over different depths) the wavelength constituents of an image using a dispersive lens system or element, such that this spectral information may be exploited and used. The wavelength constituents of an image are deconstructed and identified over different depths using a dispersive lens system or element.Type: ApplicationFiled: March 19, 2014Publication date: December 25, 2014Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Mehrdad ABOLBASHARI, Faramarz FARAHI
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Publication number: 20140000704Abstract: A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the cladding layer being configured to allow ambient light to pass through the cladding layer, and an exit port located proximate an end of the waveguide. The PV system further comprises one or more solar cells disposed at the exit port of the waveguide. The waveguide is configured to guide light to the one or more solar cells. Another photovoltaic (PV) system includes a waveguide comprising an active cladding layer hosting material configured to absorb and emit light, and a core layer configured to confine light emitted by the active cladding layer. The PV system further includes one or more solar cells disposed proximate the waveguide. The core layer is configured to guide light to the one or more solar cells.Type: ApplicationFiled: June 10, 2013Publication date: January 2, 2014Applicant: The University of North Carolina at CharlotteInventor: Faramarz Farahi
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Publication number: 20130340543Abstract: The present disclosure provides distributed sensor grid, surface, and skin systems and methods that utilize compressive sampling systems and methods for reading and processing the outputs of sensor arrays (serial and/or parallel) such that increased speed can be achieved. These sensor arrays can be functionalized or sensitized in any desired manner and functions are derived from the outputs, as opposed to individual data points. The sensor arrays can be made in the form of a textile, a fiber optic network, a MEMS network, or a CMOS camera, for example. In general, in accordance with the systems and methods of the present disclosure, a Code is applied to a distributed sensor as part of the compressive sampling technique and derives the functions.Type: ApplicationFiled: June 20, 2013Publication date: December 26, 2013Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHARLOTTEInventors: Faramarz FARAHI, Mehrdad ABOLBASHARI
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Publication number: 20130319500Abstract: An electricity-generating fabric panel unit includes a panel of light-collecting fabric and an edge assembly disposed along an edge of the fabric panel and adapted to collect light from the fabric panel and convert it to electricity.Type: ApplicationFiled: March 15, 2013Publication date: December 5, 2013Inventors: Daniel Lee BIZZELL, Faramarz FARAHI, Jeremy Eric LOSAW, Raeshon Lamont MCNEIL, Kenneth C. PAULUS, Thomas James PHILPOTT, Juan Carlos PEREZ
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Patent number: 8463092Abstract: A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the cladding layer being configured to allow ambient light to pass through the cladding layer, and an exit port located proximate an end of the waveguide. The PV system further comprises one or more solar cells disposed at the exit port of the waveguide. The waveguide is configured to guide light to the one or more solar cells. Another photovoltaic (PV) system includes a waveguide comprising an active cladding layer hosting material configured to absorb and emit light, and a core layer configured to confine light emitted by the active cladding layer. The PV system further includes one or more solar cells disposed proximate the waveguide. The core layer is configured to guide light to the one or more solar cells.Type: GrantFiled: August 10, 2010Date of Patent: June 11, 2013Assignee: The University of North Carolina at CharlotteInventor: Faramarz Farahi
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Publication number: 20110232211Abstract: A photovoltaic (PV) system includes a fiber optical waveguide comprising an active core that hosts material configured to absorb and emit light, a cladding layer surrounding the active core, the cladding layer being configured to allow ambient light to pass through the cladding layer, and an exit port located proximate an end of the waveguide. The PV system further comprises one or more solar cells disposed at the exit port of the waveguide. The waveguide is configured to guide light to the one or more solar cells. Another photovoltaic (PV) system includes a waveguide comprising an active cladding layer hosting material configured to absorb and emit light, and a core layer configured to confine light emitted by the active cladding layer. The PV system further includes one or more solar cells disposed proximate the waveguide. The core layer is configured to guide light to the one or more solar cells.Type: ApplicationFiled: August 10, 2010Publication date: September 29, 2011Inventor: Faramarz Farahi
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Patent number: 7126976Abstract: The present invention relates to a solid-state laser comprising: a) a semiconductor pump laser, b) a lens integrated on the surface of said semiconductor pump laser, c) a packaging material consisting essentially of a spin-on glass material, wherein the spin-on glass material is processable at a process temperature of less than 225° C., and d) a lasing material layer having a highly reflective coating in both sides. The invention also relates to a process for producing such a solid-state laser, which process comprises applying spin-on glass material onto semiconductor wafers having VCSEL pump lasers using different coating methods, such as spin coating, and curing the glass film layer at temperatures <225° C.Type: GrantFiled: May 14, 2003Date of Patent: October 24, 2006Assignee: Waveguide Solutions, Inc.Inventors: Faramarz Farahi, Pedram Leilabady
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Patent number: 7067240Abstract: The subject invention relates to the fabrication of micro-optical structures in a glass-like transparent material using conventional photolithography processing steps. The glass-like material is a spin-on glass (SOG) material, which behaves like a negative-tone photoresist, and has high quality optical properties similar to those of glass. The present invention can take advantage of gray scale photomasks to illuminate the uncured spin-on material with various illumination intensities, thus resulting in variations in resultant film thickness of the SOG material after the chemical development step. This results in micro-optical structures that can be fabricated with the desired shapes, depending on the transmission characteristics of each region of the gray scale photomask.Type: GrantFiled: May 14, 2003Date of Patent: June 27, 2006Assignee: Waveguide Solutions, Inc.Inventors: Faramarz Farahi, Patrick Moyer, Ramazan Benrashid, Pascal Dupriez
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Patent number: 7058245Abstract: An optoelectronic device having a flexible substrate and an optical interconnect (i.e. waveguide) comprising a sol-gel based material formed on the substrate. The sol-gel based waveguide is capable of being integrated into an all-optical system and provides for greater interconnect distance and lower signal loss. Other sol-gel based optical devices, such as filters, optical source, detectors, sensors, switches and the like, will be implemented in conjunction with the sol-gel based waveguides to provide for an integrated optical system. Methods of formulating the sol-gel based material and methods for fabricating the sol-gel based devices are also provided.Type: GrantFiled: March 9, 2001Date of Patent: June 6, 2006Assignee: Waveguide Solutions, Inc.Inventor: Faramarz Farahi
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Patent number: 6980710Abstract: The present invention claims a unique way to pattern an optical microstructure immediately on top of a mass produced light-emitting device, such as a light emitting diode (LED), a vertical cavity surface emitting laser (VCSEL) or a photo detector, for the purpose of efficient coupling of light to or from the active region of the light-emitting device. The invention addresses the need to effectively and efficiently extract light from the light-emitting optoelectronic device. Finally, the invention allows for the optical microstructure to be deposited and patterned directly over the light-emitting device contained on a suitable substrate, such as a wafer.Type: GrantFiled: January 10, 2003Date of Patent: December 27, 2005Assignee: Waveguide Solutions IncInventors: Faramarz Farahi, Patrick Moyer, Ramazan Benrashid, Leilabady Pedram