Patents by Inventor Torbjorn Hamrelius

Torbjorn Hamrelius 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: 5604346
    Abstract: An arrangement for recording an IR image of an object. The arrangement has a focal plane array (FPA) of IR detectors and an optic which images the object on the focal plane IR detector array. At least one temperature reference is arranged in the beam path of the focal IR detector array. At least one IR reference detector is assigned as a reference among the IR detector elements in this array. Each temperature reference is coordinated with at least one of the IR reference detector elements so that each of the IR reference detector elements is impinged upon by radiation deriving essentially solely from one of the temperature references. An IR detector reference output signal is intended to be produced for each temperature reference. Each IR reference output signal is intended to set an individual reference level for the output signals from the remaining IR detector elements in the IR detector array.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: February 18, 1997
    Assignee: Agema Infrared Systems AB
    Inventors: Torbjorn Hamrelius, Ulf Guldevall