Patents by Inventor Jan Kristian Kruger

Jan Kristian Kruger 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).

  • Temperature modulated refractive index measurement
    Patent number: 8928872
    Abstract: The present invention is directed to temperature modulated refractive index measurement. In accordance with the invention a method for determination of the complex temperature coefficient of the refractive index of a sample is provided, wherein the determination of the complex temperature coefficient of the refractive index of the sample is based on a refractive index measurement. Furthermore, the refractive index of the sample is measured over a period of time, wherein the temperature of the sample is modulated over said period of time and the complex temperature coefficient of the refractive index is calculated on the basis of the refractive index measurement over the period of time and the temperature modulation over the period of time. Additionally, a measurement system, in particular comprising a temperature control system and a processing system to carry out the above method, is disclosed.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: January 6, 2015
    Assignee: Anton Paar Optotec GmbH
    Inventors: Ulrich Muller, Jan Kristian Kruger
  • Temperature Modulated Refractive Index Measurement
    Publication number: 20130155395
    Abstract: The present invention is directed to temperature modulated refractive index measurement. In accordance with the invention a method for determination of the complex temperature coefficient of the refractive index of a sample is provided, wherein the determination of the complex temperature coefficient of the refractive index of the sample is based on a refractive index measurement. Furthermore, the refractive index of the sample is measured over a period of time, wherein the temperature of the sample is modulated over said period of time and the complex temperature coefficient of the refractive index is calculated on the basis of the refractive index measurement over the period of time and the temperature modulation over the period of time. Additionally, a measurement system, in particular comprising a temperature control system and a processing system to carry out the above method, is disclosed.
    Type: Application
    Filed: August 2, 2011
    Publication date: June 20, 2013
    Applicant: ANTON PAAR OPTOTEC GMBH
    Inventors: Ulrich Muller, Jan Kristian Kruger