Patents by Inventor Gerald M. Heigel

Gerald M. Heigel 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).

  • Spectral and luminance measuring device employing array and single-channel detectors in combination
    Patent number: 7897912
    Abstract: An apparatus for measuring light properties includes a housing defining a light input port; as well as a first light detector; a second light detector; and a coupling element. The first light detector is a single channel light detector or a multiple channel light detector. The second light detector is a multiple channel light detector. The coupling element is configured and arranged to selectively couple light incident from the light input port to one of the first light detector and the second light detector. As an alternative, a beam splitting element can be used instead of the coupling element. The beam splitting element receives light from the light input port and then splits the light and delivers a portion of the light to the first light detector and a portion of the light to the second light detector.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 1, 2011
    Assignee: Photo Research, Inc.
    Inventors: Francis A. Dominic, Thomas H. Bulpitt, Gerald M. Heigel
  • APPARATUS WITH MULTIPLE LIGHT DETECTORS AND METHODS OF USE AND MANUFACTURE
    Publication number: 20070272844
    Abstract: An apparatus for measuring light properties includes a housing defining a light input port; as well as a first light detector; a second light detector; and a coupling element. The first light detector is a single channel light detector or a multiple channel light detector. The second light detector is a multiple channel light detector. The coupling element is configured and arranged to selectively couple light incident from the light input port to one of the first light detector and the second light detector. As an alternative, a beam splitting element can be used instead of the coupling element. The beam splitting element receives light from the light input port and then splits the light and delivers a portion of the light to the first light detector and a portion of the light to the second light detector.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Applicant: Photo Research, Inc.
    Inventors: Francis A. Dominic, Thomas H. Bulpitt, Gerald M. Heigel