Patents by Inventor Pavel Serafimovich

Pavel Serafimovich 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).

  • Illumination system eliminating laser speckle and projection TV employing the same
    Patent number: 7746414
    Abstract: Provided are an illumination system, a projection TV employing the illumination system, and a projection method. The illumination system includes: a laser light source which emits a plurality of laser beams including beamlets along different optical axes; and a diffractive optical element which spatially averages the laser beamlets by superimposing the laser beamlets to remove speckles of the laser beamlets and which shapes each of the laser beamlets.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pavel Serafimovich, Sungha Kim, Byoungho Cheong, Sangwhoe Dho
  • Illumination system eliminating laser speckle and projection TV employing the same
    Patent number: 7697079
    Abstract: Provided are an illumination system and a projection TV employing the same. The illumination system includes: a laser light source including a plurality of lasers which emit laser beams including a plurality of beamlets; a first diffractive optical element which separates the laser beams according to wavelength and which focuses the separated beams onto different segments of a second refractive optical element; and the second diffractive optical element which focuses and superimposes a plurality of beamlets, of the laser beams transmitted by the first diffractive optical element, in order to spatially average the laser beams and to eliminate laser speckle.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pavel Serafimovich, Sungha Kim, Byoungho Cheong, Sangwhoe Dho
  • Illumination system eliminating laser speckle and projection TV employing the same
    Publication number: 20060109386
    Abstract: Provided are an illumination system, a projection TV employing the illumination system, and a projection method. The illumination system includes: a laser light source which emits a plurality of laser beams including beamlets along different optical axes; and a diffractive optical element which spatially averages the laser beamlets by superimposing the laser beamlets to remove speckles of the laser beamlets and which shapes each of the laser beamlets.
    Type: Application
    Filed: September 13, 2005
    Publication date: May 25, 2006
    Inventors: Pavel Serafimovich, Sungha Kim, Byoungho Cheong, Sangwhoe Dho
  • Illumination system eliminating laser speckle and projection TV employing the same
    Publication number: 20060109553
    Abstract: Provided are an illumination system and a projection TV employing the same. The illumination system includes: a laser light source including a plurality of lasers which emit laser beams including a plurality of beamlets; a first diffractive optical element which separates the laser beams according to wavelength and which focuses the separated beams onto different segments of a second refractive optical element; and the second diffractive optical element which focuses and superimposes a plurality of beamlets, of the laser beams transmitted by the first diffractive optical element, in order to spatially average the laser beams and to eliminate laser speckle.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 25, 2006
    Inventors: Pavel Serafimovich, Sungha Kim, Byoungho Cheong, Sangwhoe Dho