Patents by Inventor Jefferson Y. Han

Jefferson Y. Han 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).

  • Method and apparatus for determining a bidirectional reflectance distribution function, subsurface scattering or a bidirectional texture function of a subject
    Patent number: 7190461
    Abstract: An apparatus for determining a bidirectional reflectance distribution function of a subject. In one embodiment, the apparatus includes a light source for producing light. The apparatus includes means for measuring the bidirectional reflectance distribution function of the subject from multiple locations simultaneously with the light. A method for determining a bidirectional reflectance distribution function of a subject.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: March 13, 2007
    Assignee: New York University
    Inventors: Jefferson Y. Han, Kenneth Perlin
  • Volumetric display with dust as the participating medium
    Patent number: 6997558
    Abstract: An apparatus for producing a volumetric display includes a scanning collimated light source that creates an image by illuminating a suspension of light-scattering particles in an optically transparent medium with a collimated beam, where the brightness of the collimated beam is modulated at each moment in time by an amount that is dependent upon the momentary direction of the beam and also on the distance of the scattering particle encountered by the beam at that moment. A method for producing a volumetric display. An apparatus for producing a volumetric display includes a light source for providing light. The apparatus includes a mechanism for producing a volumetric image with the light from the light source. The method includes the steps of producing light from a light source. There is the step of producing a volumetric image with the light from the light source.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: February 14, 2006
    Assignee: New York University
    Inventors: Kenneth Perlin, Jefferson Y. Han
  • Volumetric display with dust as the participating medium
    Publication number: 20040218148
    Abstract: An apparatus for producing a volumetric display includes a scanning collimated light source that creates an image by illuminating a suspension of light-scattering particles in an optically transparent medium with a collimated beam, where the brightness of the collimated beam is modulated at each moment in time by an amount that is dependent upon the momentary direction of the beam and also on the distance of the scattering particle encountered by the beam at that moment. A method for producing a volumetric display. An apparatus for producing a volumetric display includes a light source for providing light. The apparatus includes a mechanism for producing a volumetric image with the light from the light source. The method includes the steps of producing light from a light source. There is the step of producing a volumetric image with the light from the light source.
    Type: Application
    Filed: December 5, 2003
    Publication date: November 4, 2004
    Applicant: New York University
    Inventors: Kenneth Perlin, Jefferson Y. Han