Patents by Inventor Dennis J. Gallagher

Dennis J. Gallagher 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).

  • Patent number: 9013797
    Abstract: A lens, such as a lens for use in a wafer-level camera, is made by forming a polymeric material with at least one master to form a pre-final lens. The pre-final lens forms a majority of a final volume of the lens. The pre-final lens is allowed to harden, during which it may sag or shrink. An aliquot of polymeric material is added to the lens and formed with the same master with a spacer, or with a second master, to form a first surface layer that provides correction between the pre-final lens shape and a final desired lens shape. In an embodiment, the surface layer has similar or identical index of refraction to the pre-final lens. In an embodiment the lens is formed on a substrate. In an embodiment, a send master, or master pair, are used to form a lens having upper and lower curvature, with a second aliquot of polymeric material forming a second surface layer on a surface of the lens opposite to the first surface layer.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: April 21, 2015
    Assignee: OmniVision Technologies, Inc.
    Inventors: Dennis J. Gallagher, Regis S. Fan
  • Patent number: 8922700
    Abstract: An imaging system for imaging a range of field points over on- and off-axis fields includes an image sensor for capturing image data, and first and second optical elements that are spaced apart and cooperate to image light at the image sensor. The first and second optical elements are configured to jointly modify phase of the light transmitted therethrough such that point-spread functions (“PSFs”) corresponding to the range field points are substantially uniform over on- and off-axis fields.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: December 30, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventor: Dennis J. Gallagher
  • Publication number: 20140139934
    Abstract: A lens, such as a lens for use in a wafer-level camera, is made by forming a polymeric material with at least one master to form a pre-final lens. The pre-final lens forms a majority of a final volume of the lens. The pre-final lens is allowed to harden, during which it may sag or shrink. An aliquot of polymeric material is added to the lens and formed with the same master with a spacer, or with a second master, to form a first surface layer that provides correction between the pre-final lens shape and a final desired lens shape. In an embodiment, the surface layer has similar or identical index of refraction to the pre-final lens. In an embodiment the lens is formed on a substrate. In an embodiment, a send master, or master pair, are used to form a lens having upper and lower curvature, with a second aliquot of polymeric material forming a second surface layer on a surface of the lens opposite to the first surface layer.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: OmniVision Technologies, Inc.
    Inventors: Dennis J. Gallagher, Regis S. Fan
  • Patent number: 8638500
    Abstract: A lens, such as a lens for use in a wafer-level camera, is made by forming a polymeric material with at least one master to form a pre-final lens. The pre-final lens forms a majority of a final volume of the lens. The pre-final lens is allowed to harden, during which it may sag or shrink. An aliquot of polymeric material is added to the lens and formed with the same master with a spacer, or with a second master, to form a first surface layer that provides correction between the pre-final lens shape and a final desired lens shape. In an embodiment, the surface layer has similar or identical index of refraction to the pre-final lens. In an embodiment the lens is formed on a substrate. In an embodiment, a send master, or master pair, are used to form a lens having upper and lower curvature, with a second aliquot of polymeric material forming a second surface layer on a surface of the lens opposite to the first surface layer.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: January 28, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Dennis J. Gallagher, Regis S. Fan
  • Patent number: 8633969
    Abstract: An optical system for capturing three-dimensional images of a three-dimensional object is provided. The optical system includes a projector for structured illumination of the object. The projector includes a light source, a grid mask positioned between the light source and the object for structured illumination of the object, and a first Wavefront Coding (WFC) element having a phase modulating mask positioned between the grid mask and the object to receive patterned light from the light source through the grid mask. The first WFC element is constructed and arranged such that a point spread function of the projector is substantially invariant over a wider range of depth of field of the grid mask than a point spread function of the projector without the first WFC element.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: January 21, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Paulo E. X. Silveira, Dennis J. Gallagher, Lu Gao
  • Publication number: 20120224263
    Abstract: An optical system has a lens assembly for imaging an object. The lens assembly includes a lens wherein at least a portion of a peripheral part of the lens includes a diffraction grating arranged to divert light arriving on the peripheral part of the lens from an object. The diffraction grating diverts the light away from a focal region, where a central part of the lens focuses light arriving on the central part of the lens from the object, into an image of the object.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 6, 2012
    Inventor: Dennis J. Gallagher
  • Publication number: 20120200943
    Abstract: A lens, such as a lens for use in a wafer-level camera, is made by forming a polymeric material with at least one master to form a pre-final lens. The pre-final lens forms a majority of a final volume of the lens. The pre-final lens is allowed to harden, during which it may sag or shrink An aliquot of polymeric material is added to the lens and formed with the same master with a spacer, or with a second master, to form a first surface layer that provides correction between the pre-final lens shape and a final desired lens shape. In an embodiment, the surface layer has similar or identical index of refraction to the pre-final lens. In an embodiment the lens is formed on a substrate. In an embodiment, a send master, or master pair, are used to form a lens having upper and lower curvature, with a second aliquot of polymeric material forming a second surface layer on a surface of the lens opposite to the first surface layer.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Inventors: Dennis J. Gallagher, Regis S. Fan
  • Publication number: 20120200671
    Abstract: An optical system for capturing three-dimensional images of a three-dimensional object is provided. The optical system includes a projector for structured illumination of the object. The projector includes a light source, a grid mask positioned between the light source and the object for structured illumination of the object, and a first Wavefront Coding (WFC) element having a phase modulating mask positioned between the grid mask and the object to receive patterned light from the light source through the grid mask. The first WFC element is constructed and arranged such that a point spread function of the projector is substantially invariant over a wider range of depth of field of the grid mask than a point spread function of the projector without the first WFC element.
    Type: Application
    Filed: February 9, 2011
    Publication date: August 9, 2012
    Inventors: Paulo E.X. Silveira, Dennis J. Gallagher, Lu Gao
  • Publication number: 20110025877
    Abstract: An imaging system for imaging a range of field points over on- and off-axis fields includes an image sensor for capturing image data, and first and second optical elements that are spaced apart and cooperate to image light at the image sensor. The first and second optical elements are configured to jointly modify phase of the light transmitted therethrough such that point-spread functions (“PSFs”) corresponding to the range field points are substantially uniform over on- and off-axis fields.
    Type: Application
    Filed: April 3, 2009
    Publication date: February 3, 2011
    Inventor: Dennis J. Gallagher
  • Patent number: D260248
    Type: Grant
    Filed: May 25, 1979
    Date of Patent: August 18, 1981
    Inventor: Dennis J. Gallagher