Patents by Inventor Tapani Antila

Tapani Antila 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).

  • Fabry-perot interferometer and a method for producing the same with decreased bending
    Patent number: 9588334
    Abstract: The invention relates to a Fabry-Perot interferometer and a method for producing the same. More specifically, the invention relates to Fabry-Perot interferometers which are controllable with one or several actuators, such as piezoelectric, electrostrictive or flexoelectric actuators. In prior art technology there is a problem to achieve a sufficiently small and uniform gap between mirrors. In the present invention an intermediate structure (85a, 85b, 95a, 95b, 81a, 81b, 91a, 91b, 98a, 98b) is used between a mirror and an actuator or between two mirrors. The method of production also includes measuring the width distribution of the gap in several phases, and providing pre-actuation of actuators.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: March 7, 2017
    Assignee: TEKNLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Tapani Antila, Jussi Mäkynen, Christer Holmlund, Jarkko Antila, Jyrki Ollila, Heikki Saari
  • Fabry-Perot interferometer and a method for producing the same
    Publication number: 20150124263
    Abstract: The invention relates to a Fabry-Perot interferometer and a method for producing the same. More specifically, the invention relates to Fabry-Perot interferometers which are controllable with one or several actuators, such as piezoelectric, electrostrictive or flexoelectric actuators. In prior art technology there is a problem to achieve a sufficiently small and uniform gap between mirrors. In the present invention an intermediate structure (85a, 85b, 95a, 95b, 81a, 81b, 91a, 91b, 98a, 98b) is used between a mirror and an actuator or between two mirrors. The method of production also includes measuring the width distribution of the gap in several phases, and providing pre-actuation of actuators.
    Type: Application
    Filed: May 8, 2013
    Publication date: May 7, 2015
    Applicant: Teknologian tutkimuskeskus VTT
    Inventors: Tapani Antila, Jussi Mäkynen, Christer Holmlund, Jarkko Antila, Jyrki Ollila, Heikki Saari