Patents by Inventor Alan D. Kathman

Alan D. Kathman 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: 20110170188
    Abstract: A monolithic polarizing diffractive structure includes a system having at least two parallel continuous planar surfaces, a diffractive pattern on one of the at least two parallel continuous surfaces, the diffractive pattern including at least two diffractive elements integral with the one of the at least two continuous surfaces, the at least two diffractive elements defining a monolithic diffractive pattern, and a polarizing pattern on one of the at least two parallel continuous surfaces. The polarizing pattern includes at least two polarizing elements, each polarizing element corresponding to a respective diffractive element, the at least two polarizing elements outputting polarizations rotated with respect to one another, the at least two polarizing elements defining a monolithic polarizing pattern.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 14, 2011
    Applicant: TESSERA NORTH AMERICA, INC.
    Inventors: MARC D. HIMEL, Alan D. Kathman
  • Patent number: 7961989
    Abstract: A camera including a mount substrate, a detector on a first surface of the mount substrate, a spacer on the mount substrate, the spacer including a hole exposing the detector, a cover on the spacer, the cover covering the hole, the mount substrate, the spacer and the cover together sealing the detector, the cover having a planar surface facing the detector, and an external electrical interconnection for the detector provided outside the sealing, the external electrical interconnection being on a first surface and a second surface, different from the first surface, of the mount substrate, the external electrical interconnection adapted to connect the detector to an electrical contact pad.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 14, 2011
    Assignee: Tessera North America, Inc.
    Inventors: Alan D. Kathman, James E. Morris, John Barnett Hammond, Michael R. Feldman
  • Patent number: 7916390
    Abstract: A monolithic polarization controlled angle diffuser includes a system having a first surface and a second surface, a controlled angle diffuser pattern for providing an angular distribution at an illumination plane, the controlled angle diffuser pattern being on one of the first and second surfaces of the substrate, and a polarizing pattern on one of the first and second surfaces of the substrate. The controlled angle diffuser pattern includes at least two controlled angle diffuser elements. Each controlled angle diffuser element outputs different angular distributions. The polarizing pattern includes at least two polarizing elements. Each polarizing element corresponds to a respective controlled angle diffuser element. The at least two polarizing elements output polarizations are rotated with respect to one another.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 29, 2011
    Assignee: Tessera North Carolina, Inc.
    Inventors: Marc D. Himel, Alan D. Kathman
  • Publication number: 20110068258
    Abstract: A singlet lens with opposing first and second surfaces has at least one surface being nonrotationally symmetric, the singlet lens substantially maintaining a ratio of magnification along orthogonal axes. The nonrotationally symmetric surface may be used in an imaging system, which may be used in a mobile handset.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 24, 2011
    Inventors: Robert D. TeKOLSTE, Alan D. Kathman
  • Publication number: 20100272393
    Abstract: An optical chassis includes a mount substrate an optoelectronic device on the mount substrate, a spacer substrate, and a sealer substrate. The mount substrate, the spacer substrate and the sealer substrate are vertically stacked and hermetically sealing the optoelectronic device. An external electrical contact for the optoelectronic device is provided outside the sealing. At least part of the optical chassis may be made on a wafer level. A passive optical element may be provided on the sealer substrate or on another substrate stacked and secured thereto.
    Type: Application
    Filed: July 2, 2010
    Publication date: October 28, 2010
    Applicant: TESSERA NORTH AMERICA, INC.
    Inventors: Alan D Kathman, James E Morris, John Barnett Hammond, Michael R. Feldman
  • Patent number: 7769258
    Abstract: An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: August 3, 2010
    Assignee: Tessera North America, Inc.
    Inventors: Alan D. Kathman, Charles S. Koehler, William H. Welch, Eric G. Johnson, Robert D. Tekolste
  • Patent number: 7751659
    Abstract: An optical chassis includes a mount substrate an optoelectronic device on the mount substrate, a spacer substrate, and a sealer substrate. The mount substrate, the spacer substrate and the sealer substrate are vertically stacked and hermetically sealing the optoelectronic device. An external electrical contact for the optoelectronic device is provided outside the sealing. At least part of the optical chassis may be made on a wafer level. A passive optical element may be provided on the sealer substrate or on another substrate stacked and secured thereto.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: July 6, 2010
    Assignee: Tessera North America, Inc.
    Inventors: Alan D Kathman, James E Morris, John Barnett Hammond, Michael R. Feldman
  • Publication number: 20090296228
    Abstract: An integrated micro-optical system includes at least two wafers with at least two optical elements provided on respective surfaces of the at least two wafers, at least one of the two optical elements being a spherical lens. The resulting optical system presents a high numerical aperture. One of the optical elements may be a refractive element formed in a material having a high index of refraction.
    Type: Application
    Filed: October 23, 2007
    Publication date: December 3, 2009
    Applicant: DIGITAL OPTICS CORPORATION
    Inventors: Michael R. Feldman, Alan D. Kathman, William H. Welch
  • Publication number: 20090226134
    Abstract: An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
    Type: Application
    Filed: May 4, 2009
    Publication date: September 10, 2009
    Applicant: DIGITAL OPTICS CORPORATION (TESSERA NORTH AMERICA, INC.)
    Inventors: Alan D. KATHMAN, Charles S. KOEHLER, William H. WELCH, Eric G. JOHNSON, Robert D. TEKOLSTE
  • Patent number: 7529446
    Abstract: An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: May 5, 2009
    Assignee: Tessera North America, Inc.
    Inventors: Alan D. Kathman, Charles S. Koehler, William H. Welch, Eric G. Johnson, Robert D. Tekolste
  • Publication number: 20090073451
    Abstract: A spectrometer for use with a desired wavelength range includes an array of filters. Each filter outputs at least two non-contiguous wavelength peaks within the desired wavelength range. The array of filters is spectrally diverse over the desired wavelength range, and each filter in the array of filters outputs a spectrum of a first resolution. An array of detectors has a detector for receiving an output of a corresponding filter. A processor receives signals from each detector, and outputs a reconstructed spectrum having a second resolution, the second resolution being higher than any of the first resolution of each filter. Filters and detectors may be arranged into a plurality of imaging units, each imaging unit including first and second filters and first and second photosensing regions. A processor receives signals from each imaging unit, and generates a reconstructed spatial image comprised of discrete spatial units corresponding to each imaging unit.
    Type: Application
    Filed: November 17, 2008
    Publication date: March 19, 2009
    Inventors: Robert D. TeKolste, Alan D. Kathman
  • Patent number: 7463401
    Abstract: An integrated micro-optical system includes at least two wafers with at least two optical elements provided on respective surfaces of the at least two wafers, at least one of the two optical elements being a spherical lens. The resulting optical system presents a high numerical aperture. One of the optical elements may be a refractive element formed in a material having a high index of refraction.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: December 9, 2008
    Assignee: Tessera North America, Inc.
    Inventors: Michael R. Feldman, Alan D. Kathman, William H. Welch
  • Patent number: 7453575
    Abstract: A spectrometer for use with a desired wavelength range includes an array of filters. Each filter outputs at least two non-contiguous wavelength peaks within the desired wavelength range. The array of filters is spectrally diverse over the desired wavelength range, and each filter in the array of filters outputs a spectrum of a first resolution. An array of detectors has a detector for receiving an output of a corresponding filter. A processor receives signals from each detector, and outputs a reconstructed spectrum having a second resolution, the second resolution being higher than any of the first resolution of each filter.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: November 18, 2008
    Assignee: Tessera North America, Inc.
    Inventors: Robert D. Te Kolste, Alan D. Kathman
  • Publication number: 20080251707
    Abstract: A camera including a mount substrate, a detector on a first surface of the mount substrate, a spacer on the mount substrate, the spacer including a hole exposing the detector, a cover on the spacer, the cover covering the hole, the mount substrate, the spacer and the cover together sealing the detector, the cover having a planar surface facing the detector, and an external electrical interconnection for the detector provided outside the sealing, the external electrical interconnection being on a first surface and a second surface, different from the first surface, of the mount substrate, the external electrical interconnection adapted to connect the detector to an electrical contact pad.
    Type: Application
    Filed: October 31, 2007
    Publication date: October 16, 2008
    Inventors: ALAN D. KATHMAN, James E. MORRIS, John Barnett HAMMOND, Michael R. FELDMAN
  • Publication number: 20080159695
    Abstract: An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
    Type: Application
    Filed: March 10, 2008
    Publication date: July 3, 2008
    Applicant: DIGITAL OPTICS CORPORATION (now TESSERA NORTH AMERICA, INC.)
    Inventors: Alan D. Kathman, Charles S. Koehler, William H. Welch, Eric G. Johnson, Robert D. Tekolste
  • Publication number: 20080136955
    Abstract: A method for forming a camera including an integrated optical subsystem, includes aligning a plurality of second dies with a plurality of first dies, each first die having a second die aligned therewith, at least one of the plurality of first dies and the plurality of the second dies include a corresponding number of optical elements, securing aligned dies, and dividing secured aligned dies into a plurality of portions, a portion containing a first die, a second die and at least one optical element, thereby forming the integrated optical subsystem.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 12, 2008
    Inventors: Alan D. KATHMAN, Michael R. FELDMAN, Brian HARDEN, W. Hudson WELCH
  • Publication number: 20080128844
    Abstract: A camera having an imaging system including first and second substrates, a first optical element on a first surface of the first substrate, and a second optical element on a second surface of the second substrate, the first and second surfaces being parallel and the first and second optical elements being substantially centered along an optical axis of the imaging system, and a detector positioned in optical communication with the imaging system, wherein an imaging function of the imaging system is distributed over at least the first and second optical elements.
    Type: Application
    Filed: October 26, 2007
    Publication date: June 5, 2008
    Inventors: Michael R. Feldman, Alan D. Kathman, William H. Welch
  • Publication number: 20080111058
    Abstract: An integrated optical imaging system includes a first substrate having first and second opposing surfaces, a second substrate having third and fourth opposing surfaces, a spacer between a substantially planar portion of the third surface of the second substrate and a substantially planar portion of the second surface of the first substrate, at least two of the spacer, the first substrate and the second substrate sealing an interior space between the third surface of the second substrate and the second surface of the first substrate, and an optical imaging system having n surfaces, where n is greater than or equal to two, at least two of the n surfaces of the optical imaging system are on respective ones of the first, second, third and fourth surfaces.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 15, 2008
    Inventors: MICHAEL R. FELDMAN, Brian Harden, Alan D. Kathman, W. Hudson Welch
  • Patent number: 7343069
    Abstract: An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: March 11, 2008
    Assignee: Tessera North America, Inc.
    Inventors: Alan D. Kathman, Charles S. Koehler, William H. Welch, Eric G. Johnson, Robert D. Tekolste
  • Patent number: 7266270
    Abstract: A waveguide to waveguide monitor includes an optics block between the two waveguides. The optics block couples light between the two waveguides and includes at least two parallel surfaces. The monitor also has an optical tap which creates a monitor beam. The optics block may be flush with the endfaces of the waveguides, even if the endfaces are angled. At least two optical elements needed to couple the light between the two optical waveguides and direct the monitor beam on a detector are on the at least two parallel surfaces of the optics block and any surfaces secured thereto.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: September 4, 2007
    Assignee: Tessera North America
    Inventors: James E. Morris, Alan D. Kathman, Hongtao Han, Michael R. Feldman, Charles S. Koehler