Patents by Inventor Raveen Kumaran

Raveen Kumaran 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).

  • Publication number: 20190124304
    Abstract: Light projection systems and methods may comprise combining light from two or more projectors, Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors.
    Type: Application
    Filed: December 20, 2018
    Publication date: April 25, 2019
    Inventors: Eric Kozak, Gerwin Damberg, Anders Ballestad, Raveen Kumaran, James Gregson, Johannes Minor, Gil Rosenfeld
  • Publication number: 20190007660
    Abstract: Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
    Type: Application
    Filed: August 21, 2018
    Publication date: January 3, 2019
    Inventors: Gerwin DAMBERG, Eric Jan KOZAK, Raveen KUMARAN, Anders BALLESTAD
  • Patent number: 10171779
    Abstract: Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 1, 2019
    Assignee: MTT Innovation Incorporated
    Inventors: Eric Kozak, Gerwin Damberg, Anders Ballestad, Raveen Kumaran, James Gregson, Johannes Minor, Gil Rosenfeld
  • Publication number: 20180292053
    Abstract: A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
    Type: Application
    Filed: January 5, 2018
    Publication date: October 11, 2018
    Inventors: Johannes Minor, Gerwin Damberg, Raveen Kumaran, Anders Ballestad, Eric Jan Kozak, Gil Rosenfeld, Eran Elizur
  • Publication number: 20180176519
    Abstract: A free-form lens (for example a phase modulator, lens or deformable mirror) may be made to reproduce a light pattern specified by image data. Source regions on the free-form lens are mapped to target regions areas on an image. Areas of the source regions are adjusted to vary the amount of light delivered to each of the target regions. Adjustment of the source areas may be achieved using a L-BFGS optimization which preferably incorporates smoothness and curl regularizers. Embodiments apply parallel processing to obtain control values for a free form lens in real time or near real time. Apparatus may process image data and display an image by controlling a dynamically variable free form lens using the processed image data.
    Type: Application
    Filed: February 8, 2018
    Publication date: June 21, 2018
    Inventors: Gerwin DAMBERG, Anders BALLESTAD, Raveen KUMARAN, James GREGSON
  • Patent number: 9936175
    Abstract: A free-form lens (for example a phase modulator, lens or deformable mirror) may be made to reproduce a light pattern specified by image data. Source regions on the free-form lens are mapped to target regions areas on an image. Areas of the source regions are adjusted to vary the amount of light delivered to each of the target regions. Adjustment of the source areas may be achieved using a L-BFGS optimization which preferably incorporates smoothness and curl regularizers. Embodiments apply parallel processing to obtain control values for a free form lens in real time or near real time. Apparatus may process image data and display an image by controlling a dynamically variable free form lens using the processed image data.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: April 3, 2018
    Assignee: MTT Innovation Incorporated
    Inventors: Gerwin Damberg, Anders Ballestad, Raveen Kumaran, James Gregson
  • Patent number: 9906760
    Abstract: A free-form lens (for example a phase modulator, lens or deformable mirror) may be made to reproduce a light pattern specified by image data. Source regions on the free-form lens are mapped to target regions areas on an image. Areas of the source regions are adjusted to vary the amount of light delivered to each of the target regions. Adjustment of the source areas may be achieved using a L-BFGS optimization which preferably incorporates smoothness and curl regularizers. Embodiments apply parallel processing to obtain control values for a free form lens in real time or near real time. Apparatus may process image data and display an image by controlling a dynamically variable free form lens using the processed image data.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: February 27, 2018
    Assignee: MTT Innovation Incorporated
    Inventors: Gerwin Damberg, Anders Ballestad, Raveen Kumaran, James Gregson
  • Publication number: 20180048873
    Abstract: Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
    Type: Application
    Filed: October 3, 2017
    Publication date: February 15, 2018
    Inventors: Gerwin DAMBERG, Eric Jan KOZAK, Raveen KUMARAN, Anders BALLESTAD
  • Patent number: 9874319
    Abstract: A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: January 23, 2018
    Assignee: MTT Innovation Incorporated
    Inventors: Johannes Minor, Gerwin Damberg, Raveen Kumaran, Anders Ballestad, Eric Jan Kozak, Gil Rosenfeld, Eran Elizur
  • Patent number: 9848176
    Abstract: Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: December 19, 2017
    Assignee: MTT Innovation Incorporated
    Inventors: Gerwin Damberg, Eric Jan Kozak, Raveen Kumaran
  • Publication number: 20170150107
    Abstract: Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.
    Type: Application
    Filed: May 15, 2015
    Publication date: May 25, 2017
    Inventors: Eric KOZAK, Gerwin DAMBERG, Anders BALLESTAD, Raveen KUMARAN, James GREGSON, Johannes MINOR, Gil ROSENFELD
  • Publication number: 20170138545
    Abstract: A light source includes a plurality of laser diodes or other light emitters. Beams of light from the light emitters are steered to provide n array of parallel beams that illuminate a target area with an array of patches of light. In some embodiments the parallel beams are de-magnified to form the array of patches of light. Such a light source has application in illuminating dynamically-addressable focusing elements such as phase modulators, deformable mirrors and dynamically addressable lenses. Light projectors for a wide variety of applications may combine a light source as described herein with a dynamically-addressable focusing element to project defined patterns of light.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 18, 2017
    Inventors: Johannes MINOR, Gerwin DAMBERG, Raveen KUMARAN, Anders BALLESTAD, Eric Jan KOZAK, Gil ROSENFELD, Eran ELIZUR
  • Publication number: 20170127025
    Abstract: A free-form lens (for example a phase modulator, lens or deformable mirror) may be made to reproduce a light pattern specified by image data. Source regions on the free-form lens are mapped to target regions areas on an image. Areas of the source regions are adjusted to vary the amount of light delivered to each of the target regions. Adjustment of the source areas may be achieved using a L-BFGS optimization which preferably incorporates smoothness and curl regularizers. Embodiments apply parallel processing to obtain control values for a free form lens in real time or near real time. Apparatus may process image data and display an image by controlling a dynamically variable free form lens using the processed image data.
    Type: Application
    Filed: January 16, 2017
    Publication date: May 4, 2017
    Inventors: Gerwin DAMBERG, Anders BALLESTAD, Raveen KUMARAN, James GREGSON
  • Publication number: 20170099466
    Abstract: Image display apparatus and methods may use a single imaging element such as a digital mirror device (DMD) to spatially modulate plural color channels. A color channel may include a light steering element such as a phase modulator. Steered light from a light steering element may be combined with or replaced by additional light to better display bright images. These technologies may be provided together or applied individually.
    Type: Application
    Filed: October 6, 2016
    Publication date: April 6, 2017
    Inventors: Gerwin DAMBERG, Eric Jan KOZAK, Raveen KUMARAN
  • Publication number: 20170078629
    Abstract: Light projection systems and methods may comprise combining light from two or more projectors. Each projector may be controlled so that the combined light output of the projectors matches a target for the projected light. In some embodiments optimization is performed to generate image data and control signals for each of the projectors. Embodiments may be applied in image projecting applications, lighting applications, and 3D stereoscopic imaging.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Eric KOZAK, Gerwin DAMBERG, Anders BALLESTAD, Raveen KUMARAN, James GREGSON, Johannes MINOR, Gil ROSENFELD
  • Publication number: 20120045661
    Abstract: The invention provides a means for preparing rare-earth-doped ?-(Al1-xGax)2O3 films by molecular beam epitaxy (MBE). The invention provides a composition of matter, rare-earth-doped ?-(Al1-xGax)2O3 films, and methods to provide thin films of this material. The invention also provides a means to prepare thin film rare-earth-doped ?-(Al1-xGax)2O3, including Nd: ?-(Al1-xGax)2O3, for use in solid state lasers. Rare-earth-doped ?-Ga2O3 and rare-earth-doped alloys of ?-Ga2O3 and ?-Al2O3 with the same single-crystal structure independent of Ga/Al ratio are disclosed herein.
    Type: Application
    Filed: August 18, 2011
    Publication date: February 23, 2012
    Inventors: Raveen Kumaran, Thomas Tiedje, Scott E. Webster, Shawn Penson
  • Publication number: 20110062394
    Abstract: The present invention relates to the growth of single phase rare earth-doped sapphire (?-Al2O3) films on substrates by molecular beam epitaxy. The invention provides for composition of matters, neodymium-doped sapphire films, and methods for making and using thin films of this material. The rare earth-doped films of the present invention are especially useful in solid state lasers.
    Type: Application
    Filed: August 5, 2010
    Publication date: March 17, 2011
    Applicant: UNIVERSITY OF BRITISH COLUMBIA
    Inventors: Raveen Kumaran, Thomas Tiedje, Scott Webster, Shawn Penson
  • Publication number: 20080232761
    Abstract: The invention relates to methods of making optical waveguide structures by way of molecular beam epitaxy (MBE). The method comprises the steps of: (1) providing a single crystal substrate in an ultra-high vacuum (UHV) environment, wherein the single crystal substrate has a first index of refraction; (2) heating the single crystal substrate; (3) depositing an epitaxial oxide layer having a rare-earth dopant and a second index of refraction on the single crystal substrate, wherein the epitaxial oxide layer is deposited by way of at least first, second, and third molecular beam fluxes; and (4) depositing a cladding layer on the single crystal oxide layer, wherein the cladding layer has a third index of refraction that is the same or about the same as the first index of refraction of the single crystal substrate, and wherein the second index of refraction is greater than the first and third indexes of refraction.
    Type: Application
    Filed: September 20, 2007
    Publication date: September 25, 2008
    Inventors: Raveen Kumaran, Shawn Penson, Ivan-Christophe Robin, Thomas Tiedje