Patents by Inventor David J. Cutler

David J. Cutler 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).

  • Fibre optic coupler detector
    Patent number: 6204501
    Abstract: An infra-red radiation detector having a Dewar type vessel is provided with a coupler which is coupled to the wall of the vessel. The coupler includes a fiber which can transmit infra red radiation and which terminates close to a detector provided in the Dewar type vessel. No special optical arrangement is required in order to couple an external fiber to the detector and the arrangement is inherently aligned.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: March 20, 2001
    Assignee: PerkinElmer International C.V.
    Inventor: David J. Cutler
  • Interferometer alignment system utilizing a step calibration
    Patent number: 5825491
    Abstract: An interferometer comprises a source of radiation (10) and a beam splitter (12) for forming two beams. The beams travel along different optical paths and the optical path difference of the paths can be varies by rotatable mirror pairs M2/M3 and M4/M5. One of the paths includes an adjustable mirror M6 which is tiltable in orthogonal directions. A control unit (18) can be automatically initiate periodically an alignment procedure for aligning the interferometer.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: October 20, 1998
    Assignee: Perkin-Elmer Ltd.
    Inventor: David J. Cutler