Patents by Inventor Avi Niv

Avi Niv 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).

  • Non-tracking solar energy collector
    Patent number: 10917043
    Abstract: The present application describes embodiments of a non-tracking solar energy collector comprising: (a) at least one solar radiation concentrator for collimating and directing the incident solar radiation rays to at least one focal point along the surface of a reactive reflector; (b) the reactive reflector mounted on top of an external cavity and having at least one transparency zone instantly formed at said at least one focal point of the solar radiation rays, for letting the solar radiation rays enter said external cavity, wherein said transparency zone is constantly moving along the surface of said reactive reflector following the position of said at least one focal point of the solar radiation rays; and (c) the external cavity containing a solar cell and capable of trapping the entered solar radiation rays by inner scattering of said solar radiation rays on the walls of said external cavity, wherein said inner scattering of said solar radiation rays inside said external cavity is preventing solar radiation
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: February 9, 2021
    Assignee: B. G. Negev Technologies and Applications Ltd., at Ben-Gurion University
    Inventors: Avi Niv, Ido Frenkel
  • NON-TRACKING SOLAR ENERGY COLLECTOR
    Publication number: 20190360864
    Abstract: The present application describes embodiments of a non-tracking solar energy collector comprising: (a) at least one solar radiation concentrator for collimating and directing the incident solar radiation rays to at least one focal point along the surface of a reactive reflector; (b) the reactive reflector mounted on top of an external cavity and having at least one transparency zone instantly formed at said at least one focal point of the solar radiation rays, for letting the solar radiation rays enter said external cavity, wherein said transparency zone is constantly moving along the surface of said reactive reflector following the position of said at least one focal point of the solar radiation rays; and (c) the external cavity containing a solar cell and capable of trapping the entered solar radiation rays by inner scattering of said solar radiation rays on the walls of said external cavity, wherein said inner scattering of said solar radiation rays inside said external cavity is preventing solar radiation
    Type: Application
    Filed: September 6, 2017
    Publication date: November 28, 2019
    Inventors: Avi NIV, Ido FRENKEL
  • Space-variant polarization manipulation of thermal emission
    Patent number: 9158043
    Abstract: A method for space-variant manipulating of thermal emission from a surface of a material that supports surface waves includes providing a grating with a spatially varying grating parameter on the surface of the material.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 13, 2015
    Assignee: TECHNION RESEARCH & DEVELOPMENT FOUNDATION LTD.
    Inventors: Erez Hasman, Nir Dahan, Avi Niv, Gabriel Biener, Vladimir Kleiner
  • SPACE-VARIANT POLARIZATION MANIPULATION OF THERMAL EMISSION
    Publication number: 20130027777
    Abstract: A method for space-variant manipulating of thermal emission from a surface of a material that supports surface waves includes providing a grating with a spatially varying grating parameter on the surface of the material.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 31, 2013
    Inventors: Erez Hasman, Nir Dahan, Avi Niv, Gabriel Biener, Vladimir Kleiner
  • Space-variant polarization manipulation of thermal emission
    Patent number: 8274738
    Abstract: A method for Space-variant polarization manipulation of enhanced nondirectional thermal emission in a narrow spectral peak is disclosed, comprising providing a subwavelength grating irradiating non-directional thermal emission on the grating and discretely controlling the local orientation of the grating.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: September 25, 2012
    Assignee: Technion Research & Development Foundation Ltd.
    Inventors: Erez Hasman, Nir Dahan, Avi Niv, Gabriel Biener, Vladimir Kleiner
  • Space-variant polarization manipulation of thermal emission
    Publication number: 20090009856
    Abstract: A method for Space-variant polarization manipulation of enhanced nondirectional thermal emission in a narrow spectral peak is disclosed, comprising providing a subwavelength grating irradiating non-directional thermal emission on the grating and discretely controlling the local orientation of the grating.
    Type: Application
    Filed: May 4, 2006
    Publication date: January 8, 2009
    Inventors: Erez Hasman, Nir Dahan, Avi Niv, Gabriel Biener, Vladimir Kleiner