Patents by Inventor Steven Richard Kitchen

Steven Richard Kitchen 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).

  • Laser doppler anemometry with diffractive optical elements
    Patent number: 6859267
    Abstract: The present invention relates to an apparatus for use in the determination of a condition or state of an object based on quasi-elastic interaction between the object and light transmitted to the object, the apparatus comprising a beam splitter arrangement for splitting an incoming light beam of wavelength, ?, into a diffracted light beam and an undiffracted light beam, the beam splitter arrangement comprising a first and a second diffractive member, the first diffractive member transforming the light beam emitted by the light source into the diffracted and the undiffracted light beams, the second diffractive member receiving the diffracted light beam and diffracting the received light beam in a direction substantially parallel to the undiffracted light beam from the first diffractive member, wherein the diffracted light beam, after being diffracted by the second diffractive member, and the undiffracted light beam from the first diffractive member are separated by a distance, d, said distance, d, being depende
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: February 22, 2005
    Assignee: Kamstrup A/S
    Inventors: Carsten Dam-Hansen, Steven Richard Kitchen, Michael Linde Jakobsen
  • Laser doppler anemometry with diffractive optical elements
    Publication number: 20040036873
    Abstract: The present invention relates to an apparatus for use in the determination of a condition or state of an object based on quasi-elastic interaction between the object and light transmitted to the object, the apparatus comprising a beam splitter arrangement for splitting an incoming light beam of wavelength, &lgr;, into a diffracted light beam and an undiffracted light beam, the beam splitter arrangement comprising a first and a second diffractive member, the first diffractive member transforming the light beam emitted by the light source into the diffracted and the undiffracted light beams, the second diffractive member receiving the diffracted light beam and diffracting the received light beam in a direction substantially parallel to the undiffracted light beam from the first diffractive member, wherein the diffracted light beam, after being diffracted by the second diffractive member, and the undiffracted light beam from the first diffractive member are separated by a distance, d, said distance, d, being dep
    Type: Application
    Filed: July 3, 2003
    Publication date: February 26, 2004
    Inventors: Carsten Dam-Hansen, Steven Richard Kitchen, Michael Linde Jakobsen