Patents by Inventor David Emil Carlson

David Emil Carlson 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: 20110061726
    Abstract: This invention relates to a high efficiency solar cell with a novel architecture. In one embodiment, the solar cell is comprised of a high energy gap cell stack and a dichroic mirror. The high energy gap cell stack is exposed to solar light before there is any splitting of the solar light into spectral components. Each cell in the high energy gap cell stack absorbs the light with photons of energy greater than or equal to its energy gap, i.e., the blue-green to ultraviolet portion of the solar light. Each cell in the high energy gap cell stack is transparent to and transmits light with photons of energy less than its energy gap. Spectral splitting is then performed by means of the dichroic mirror on the remaining light, i.e., the light transmitted by the high energy gap cell stack.
    Type: Application
    Filed: November 17, 2010
    Publication date: March 17, 2011
    Inventors: Allen M. Barnett, David Emil Carlson, William Alan Doolittle, Christiana Beatrice Honsberg, Douglas Andrew Kirkpatrick
  • Publication number: 20090314332
    Abstract: This invention relates to a high efficiency solar cell with a novel architecture. In one embodiment, the solar cell is comprised of a high energy gap cell stack and a dichroic mirror. The high energy gap cell stack is exposed to solar light before there is any splitting of the solar light into spectral components. Each cell in the high energy gap cell stack absorbs the light with photons of energy greater than or equal to its energy gap, i.e., the blue-green to ultraviolet portion of the solar light. Each cell in the high energy gap cell stack is transparent to and transmits light with photons of energy less than its energy gap. Spectral splitting is then performed by means of the dichroic mirror on the remaining light, i.e., the light transmitted by the high energy gap cell stack.
    Type: Application
    Filed: January 23, 2009
    Publication date: December 24, 2009
    Inventors: Allen M. Barnett, David Emil Carlson, William Alan Doolittle, Christiana Beatrice Honsberg, Douglas Andrew Kirkpatrick
  • Patent number: 4069492
    Abstract: A PIN or Schottky barrier semiconductor device having a body of amorphous silicon fabricated by a glow discharge is operated under forward bias conditions resulting in the emission of radiation from the device.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: January 17, 1978
    Assignee: RCA Corporation
    Inventors: Jacques Isaac Pankove, David Emil Carlson
  • Patent number: 4064521
    Abstract: An amorphous silicon material, fabricated by the process of a glow discharge in silane, is utilized as the body of semiconductor devices.
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: December 20, 1977
    Assignee: RCA Corporation
    Inventor: David Emil Carlson
  • Patent number: 4060660
    Abstract: Applying a D. C. glow discharge to a heated glassy substrate in an evacuated chamber to which a volatile hydrocarbon has been added, produces a glassy substrate coated with a hard, transparent, resistive, amorphous carbon coating.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: November 29, 1977
    Assignee: RCA Corporation
    Inventors: David Emil Carlson, Chester Edwin Tracy
  • Patent number: 3991228
    Abstract: Applying a D. C. glow discharge to a heated glass substrate in an evacuated chamber to which certain amounts of oxygen and a volatile tin composition have been added, produces a glass substrate coated with a transparent, conductive coating of tin oxide wherein the surface region of the glass beneath the coating has been depleted of alkali metal ions.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: November 9, 1976
    Assignee: RCA Corporation
    Inventors: David Emil Carlson, Chester Edwin Tracy
  • Patent number: 3991227
    Abstract: A D.C. glow discharge is applied to a heated glass substrate coated with a conductive layer in the form of a pattern in an evacuated chamber, to which chamber certain amounts of oxygen and a volatile tin composition have been added. A glass substrate is produced which is coated with a patterned, transparent, conductive coating of tin oxide, wherein the surface region of the glass has been depleted of alkali metal ions.
    Type: Grant
    Filed: January 27, 1975
    Date of Patent: November 9, 1976
    Assignee: RCA Corporation
    Inventors: David Emil Carlson, Lawrence Alan Goodman