Patents by Inventor Dmitriy Panasenko

Dmitriy Panasenko 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).

  • Reducing optical aberrations with graded-index optics
    Patent number: 9703099
    Abstract: An aberration corrector and a method to reducing a spherical aberration are disclosed. The aberration corrector has a radial, rotationally symmetric variation of refractive index including a term varying in proportion to a fourth degree of a distance from the optical axis. Since the spherical aberration causes a wavefront deviation proportional to the fourth degree of distance from the optical axis, the spherical aberration can be reduced by the aberration corrector when its thickness causes the exact amount of the phase delay corresponding to the wavefront deviation, but with an opposite sign.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: July 11, 2017
    Assignee: Lumentum Operations LLC
    Inventors: Xiuquan Ma, Dmitriy Panasenko, Martin H. Muendel
  • REDUCING OPTICAL ABERRATIONS WITH GRADED-INDEX OPTICS
    Publication number: 20160231564
    Abstract: An aberration corrector and a method to reducing a spherical aberration are disclosed. The aberration corrector has a radial, rotationally symmetric variation of refractive index including a term varying in proportion to a fourth degree of a distance from the optical axis. Since the spherical aberration causes a wavefront deviation proportional to the fourth degree of distance from the optical axis, the spherical aberration can be reduced by the aberration corrector when its thickness causes the exact amount of the phase delay corresponding to the wavefront deviation, but with an opposite sign.
    Type: Application
    Filed: January 21, 2016
    Publication date: August 11, 2016
    Inventors: Xiuquan Ma, Dmitriy Panasenko, Martin H. Muendel
  • Reducing optical aberrations with graded-index optics
    Patent number: 9244274
    Abstract: An aberration corrector and a method to reducing a spherical aberration are disclosed. The aberration corrector has a radial, rotationally symmetric variation of refractive index including a term varying in proportion to a fourth degree of a distance from the optical axis. Since the spherical aberration causes a wavefront deviation proportional to the fourth degree of distance from the optical axis, the spherical aberration can be reduced by the aberration corrector when its thickness causes the exact amount of the phase delay corresponding to the wavefront deviation, but with an opposite sign.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: January 26, 2016
    Assignee: Lumentum Operations LLC
    Inventors: Xiuquan Ma, Dmitriy Panasenko, Martin H. Muendel
  • REDUCING OPTICAL ABERRATIONS WITH GRADED-INDEX OPTICS
    Publication number: 20150160468
    Abstract: An aberration corrector and a method to reducing a spherical aberration are disclosed. The aberration corrector has a radial, rotationally symmetric variation of refractive index including a term varying in proportion to a fourth degree of a distance from the optical axis. Since the spherical aberration causes a wavefront deviation proportional to the fourth degree of distance from the optical axis, the spherical aberration can be reduced by the aberration corrector when its thickness causes the exact amount of the phase delay corresponding to the wavefront deviation, but with an opposite sign.
    Type: Application
    Filed: December 9, 2013
    Publication date: June 11, 2015
    Applicant: JDS Uniphase Corporation
    Inventors: Xiuquan Ma, Dmitriy Panasenko, Martin H. Muendel