US 11,999,106 B2
Cooler for optics transmitting high intensity light
James A. DeMuth, Mountain View, CA (US); Eric B. Duoss, Danville, CA (US); Joshua D. Kuntz, Livermore, CA (US); Paul A. Rosso, Livermore, CA (US); and Christopher M. Spadaccini, Oakland, CA (US)
Assigned to Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed by Lawrence Livermore National Security, LLC, Livermore, CA (US)
Filed on Jul. 16, 2020, as Appl. No. 16/931,122.
Application 16/931,122 is a division of application No. 15/010,188, filed on Jan. 29, 2016, granted, now 10,747,033.
Prior Publication US 2020/0346283 A1, Nov. 5, 2020
Int. Cl. B23K 26/70 (2014.01); B22F 12/20 (2021.01); B29C 64/268 (2017.01); B33Y 30/00 (2015.01); G02F 1/01 (2006.01); G02F 1/13 (2006.01); G02F 1/135 (2006.01); H01S 3/04 (2006.01); B22F 10/10 (2021.01); B22F 10/28 (2021.01); B22F 12/41 (2021.01)
CPC B29C 64/268 (2017.08) [B22F 12/20 (2021.01); B23K 26/703 (2015.10); B33Y 30/00 (2014.12); G02F 1/0126 (2013.01); G02F 1/132 (2013.01); G02F 1/135 (2013.01); H01S 3/0407 (2013.01); B22F 10/10 (2021.01); B22F 10/28 (2021.01); B22F 12/41 (2021.01); Y02P 10/25 (2015.11)] 25 Claims
OG exemplary drawing
 
1. A method for transmitting power fluxes through a partially absorbing optic, the method comprising:
forming a linear coolant flow path between one surface of an optic and an optically transparent window spaced apart from the one surface and parallel to the one surface of the optic;
generating a light beam at a primary wavelength through the window and through the optic, the light beam having a power flux sufficient to melt a material; and
cooling the optic by flowing an optically transparent cooling fluid through the coolant flow path, in direct contact with the optic, while the light beam is passing through the window, through the cooling fluid, and through the optic.