Patents by Inventor Frederik D. Nielsen

Frederik D. Nielsen 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).

  • OPTICAL MEASUREMENT FOR ILLUMINATING A SAMPLE WITH FILTERED LIGHT AND MEASURING FLUORESCENCE FROM THE SAMPLE
    Publication number: 20200292805
    Abstract: An optical measurement system for illuminating a sample with filtered light and measuring fluorescence from the sample, which system includes a broadband light source arranged to provide a broadband beam; a first tunable element arranged to filter at least a portion of the broadband beam thereby providing filtered light; and a control unit arranged to provide a control signal to said first tunable element, wherein the first tunable element includes an acousto-optic filter (AOTF) and the control signal to the AOTF includes an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO) arranged so the AOTF provides an out-of-band suppression of more than or equal to 25 dB.
    Type: Application
    Filed: January 15, 2020
    Publication date: September 17, 2020
    Applicant: NKT Photonics A/S
    Inventors: Frederik D. NIELSEN, Carsten L. THOMSEN, Weidong SHENG, Erik H. THOMSEN
  • Tunable filter including an angular dispersive element for a broad band source
    Patent number: 10564412
    Abstract: A fluorescence measurement system comprising a broadband light source and acousto-optical tunable filter (AOTF) controlled by a control unit using an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO).
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 18, 2020
    Assignee: NKT PHOTONICS A/S
    Inventors: Frederik D. Nielsen, Carsten L. Thomsen, Weidong Sheng, Erik B. Thomsen
  • ACOUSTO-OPTICAL TUNABLE FILTER (AOTF) FOR A BROAD BAND SOURCE FOR FLUORESCENCE MEASUREMENT SYSTEM
    Publication number: 20130329270
    Abstract: A fluorescence measurement system comprising a broadband light source and acousto-optical turnable filter (AOTF) controlled by a control unit using an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO).
    Type: Application
    Filed: December 12, 2011
    Publication date: December 12, 2013
    Applicant: NKT PHOTONICS A/S
    Inventors: Frederik D. Nielsen, Carsten L. Thomsen, Weidong Sheng, Erik B. Thomsen