US 12,253,657 B2
Lens systems and methods of manufacture
Alan D. Kathman, Charlotte, NC (US); William J. Hall, Concord, NC (US); Erika Goransson, Täby (SE); Todd E. Rixman, Davidson, NC (US); Bengt Jervmo, Täby (SE); Bo Dahllof, Täby (SE); Stefan Gustavsson, Täby (SE); Leif Sommar, Täby (SE); Olof Holmgren, Täby (SE); and Hans Ostling, Täby (SE)
Assigned to Teledyne FLIR Commercial Systems, Inc., Goleta, CA (US)
Filed by TELEDYNE FLIR COMMERCIAL SYSTEMS, INC., Goleta, CA (US)
Filed on Aug. 12, 2022, as Appl. No. 17/887,367.
Application 17/887,367 is a continuation of application No. 16/712,950, filed on Dec. 12, 2019, granted, now 11,415,783.
Application 16/712,950 is a continuation of application No. PCT/US2018/037642, filed on Jun. 14, 2018.
Claims priority of provisional application 62/519,758, filed on Jun. 14, 2017.
Prior Publication US 2022/0382017 A1, Dec. 1, 2022
Int. Cl. G02B 13/00 (2006.01); B29D 11/00 (2006.01); G02B 7/02 (2021.01); H04N 5/33 (2023.01); H04N 23/11 (2023.01); C03C 3/32 (2006.01)
CPC G02B 13/008 (2013.01) [B29D 11/00432 (2013.01); G02B 7/028 (2013.01); H04N 23/11 (2023.01); C03B 2215/46 (2013.01); C03C 3/321 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for stabilizing a chalcogenide lens, the method comprising:
forming the chalcogenide lens using a molding process;
heating the chalcogenide lens to a dwell temperature; and
cooling the chalcogenide lens from the dwell temperature, wherein the heating and the cooling form an annealing process to accelerate release of internal stress within the chalcogenide lens caused by the molding process, wherein at least one of the heating or the cooling is performed in a plurality of segments in which each segment of the heating is associated with a respective heating rate or each segment of the cooling is associated with a respective cooling rate.