Patents by Inventor Trygve Foosn.ae butted.s

Trygve Foosn.ae butted.s 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).

  • Spectroscopic measuring device having filter consisting of interference filter, one or two fixed-mirror etalons and a single movable -mirror etalon
    Patent number: 5606419
    Abstract: In the present equipment for spectroscopic measurement of a gas in a gas mixture, for example a gas in the atmosphere, a filter device is used to filter out one spectral line from other spectral lines belonging to other gases and the transmitted light is detected by a detector which gives a signal to devices for calculating and displaying the measurement data. The filter device consists of an interference filter (1), at least one fixed etalon (2) and a Fabry-Perot interferometer (1). In a preferred design, the filter can be fitted with two fixed etalons instead of one.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: February 25, 1997
    Assignee: Norsk Hydro a.s.
    Inventors: Trygve Foosn.ae butted.s, Tycho J.ae butted.ger, Jon Tschudi, Jon K. Hagene