Patents by Inventor De Wet Van Rooyen

De Wet Van Rooyen 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).

  • Calibration method and calibration device for a group of reflectors for concentrating solar radiation onto a radiation receiver
    Patent number: 11073307
    Abstract: The invention relates to a calibration method for a group of reflectors for concentrating solar radiation onto a radiation receiver, having the following steps: A) aligning the reflectors in order to at least partly expose a calibration surface to solar radiation reflected by the reflectors; B) modifying the intensity distribution of the radiation incident on the calibration surface by carrying out a pattern of movements by each reflector of the group, wherein at least one specified parameter for the pattern of movements of each reflector differs from the parameters of the other reflectors, said parameter being selected from the group: —movement frequency,—movement amplitude,—movement phase angle, and—trajectory of the solar radiation, reflected by the reflector, within the calibration surface; C) recording rows of pixels for a plurality of differently located location points of the calibration surface by at least one camera, each row of pixel having at least five temporally offset pixel recordings; D) ascert
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: July 27, 2021
    Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.
    Inventors: Gregor Bern, Peter Schoettl, De Wet Van Rooyen, Peter Nitz, Anna Heimsath
  • CALIBRATION METHOD AND CALIBRATION DEVICE FOR A GROUP OF REFLECTORS FOR CONCENTRATING SOLAR RADIATION ONTO A RADIATION RECEIVER
    Publication number: 20190264953
    Abstract: The invention relates to a calibration method for a group of reflectors for concentrating solar radiation onto a radiation receiver, having the following steps: A) aligning the reflectors in order to at least partly expose a calibration surface to solar radiation reflected by the reflectors; B) modifying the intensity distribution of the radiation incident on the calibration surface by carrying out a pattern of movements by each reflector of the group, wherein at least one specified parameter for the pattern of movements of each reflector differs from the parameters of the other reflectors, said parameter being selected from the group: movement frequency, movement amplitude, movement phase angle, and trajectory of the solar radiation, reflected by the reflector, within the calibration surface; C) recording rows of pixels for a plurality of differently located location points of the calibration surface by at least one camera, each row of pixel having at least five temporally offset pixel recordings; D) ascerta
    Type: Application
    Filed: September 26, 2017
    Publication date: August 29, 2019
    Applicant: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung e.V.
    Inventors: Gregor Bern, Peter Schoettl, De Wet Van Rooyen, Peter Nitz, Anna Heimsath