Patents by Inventor Alan Kathman

Alan 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: 20070110361
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Application
    Filed: December 29, 2006
    Publication date: May 17, 2007
    Applicant: DIGITAL OPTICS CORPORATION
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Publication number: 20060262816
    Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
    Type: Application
    Filed: July 25, 2006
    Publication date: November 23, 2006
    Applicant: DIGITAL OPTICS CORPORATION
    Inventors: Alan Kathman, John Hammond, Robert Te Kolste, Alvaro Cabrera
  • Patent number: 7092416
    Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: August 15, 2006
    Assignee: Digital Optics Corporation
    Inventors: Alan Kathman, John Barnett Hammond, Robert Te Kolste, Alvaro Cruz Cabrera
  • Publication number: 20060001882
    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: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Robert Te Kolste, Alan Kathman
  • Publication number: 20050128540
    Abstract: A beam homogenizer that minimizes undesired intensity variations at the output plane caused by sharp breaks between facets in previous embodiments. The homogenizer includes a hologram made up of irregularly patterned diffractive fringes. An input beam illuminates at least part of the hologram. The hologram transmits a portion of the input beam onto an output plane. In doing so, the energy of the input beam is spatially redistributed at the output plane into a homogenized output beam having a preselected spatial energy distribution at the output plane. Thus, the illuminated portion of the output plane has a shape predetermined by the designer of the homogenizer.
    Type: Application
    Filed: January 13, 2005
    Publication date: June 16, 2005
    Applicant: DIGITAL OPTICS CORPORATION
    Inventors: Alan Kathman, Michael Feldman
  • Publication number: 20050035463
    Abstract: A structure having an optical element thereon has a portion of the structure extending beyond a region having the optical element in at least one direction. The structure may include an active optical element, with the different dimensions of the substrates forming the structure allowing access for the electrical interconnections for the active optical elements. Different dicing techniques may be used to realize the uneven structures.
    Type: Application
    Filed: September 21, 2004
    Publication date: February 17, 2005
    Applicant: DIGITAL OPTICS CORPORATION
    Inventors: Alan Kathman, Hongtao Han, Jay Mathews, John Hammond
  • Patent number: 6844978
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: January 18, 2005
    Assignee: Digital Optics Corp.
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Publication number: 20040146077
    Abstract: A wavelength locker for use at more than one wavelength includes filters with different characteristics for a corresponding detector. The filters may be etalons having different free spectral ranges, e.g., having different apparent or real thicknesses. If more than three such filters are used outputting offset periodic signals, a reference detector may be eliminated and continuous operation over a wavelength range may be realized.
    Type: Application
    Filed: September 15, 2003
    Publication date: July 29, 2004
    Applicant: Digital Optics Corporation
    Inventors: Alan Kathman, John Barnett Hammond, Robert Te Kolste, Alvaro Cruz Cabrera
  • Publication number: 20040040648
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 4, 2004
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Patent number: 6610166
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: August 26, 2003
    Assignee: Digital Optics Corporation
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Publication number: 20030011889
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 16, 2003
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Patent number: 6406583
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: June 18, 2002
    Assignee: Digital Optics Corp.
    Inventors: Brian Harden, Alan Kathman, Michael Feldman
  • Patent number: 6096155
    Abstract: Integrated multiple optical elements may be formed by bonding substrates containing such optical elements together or by providing optical elements on either side of the wafer substrate. The wafer is subsequently diced to obtain the individual units themselves. The optical elements may be formed lithographically, directly, or using a lithographically generated master to emboss the elements. Alignment features facilitate the efficient production of such integrated multiple optical elements, as well as post creation processing thereof on the wafer level.
    Type: Grant
    Filed: October 3, 1997
    Date of Patent: August 1, 2000
    Assignee: Digital Optics Corporation
    Inventors: Brian Harden, Alan Kathman, Michael Feldman