The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2022
Filed:
Dec. 12, 2019
Teledyne Flir Commercial Systems, Inc., Goleta, CA (US);
Alan D. Kathman, Charlotte, NC (US);
William J. Hall, Concord, NC (US);
Erika Goransson, Taby, SE;
Todd E. Rixman, Davidson, NC (US);
Bengt Jervmo, Taby, SE;
Bo Dahllof, Taby, SE;
Stefan Gustavsson, Taby, SE;
Leif Sommar, Taby, SE;
Olof Holmgren, Taby, SE;
Hans Ostling, Taby, SE;
Teledyne FLIR Commercial Systems, Inc., Goleta, CA (US);
Abstract
Systems and methods according to one or more embodiments are provided for annealing a chalcogenide lens at an elevated temperature to accelerate release of internal stress within the chalcogenide lens caused during a molding process that formed the chalcogenide lens. In particular, the annealing process includes gradually heating the chalcogenide lens to a dwell temperature, maintaining the chalcogenide lens at the dwell temperature for a predetermined period of time, and gradually cooling the chalcogenide lens from the dwell temperature. The annealing process stabilizes the shape, the effective focal length, and/or the modulation transfer function of the chalcogenide lens. Associated optical assemblies and infrared imaging devices are also described.