US 12,468,114 B2
Reflective optics provided with a cooling system
Paul Sauvageot, Vic en Bigorre (FR); Laurent Ropert, Vic en Bigorre (FR); Sebastien Theis, Vic en Bigorre (FR); and Thibaut Fourcade, Vic en Bigorre (FR)
Assigned to ISP SYSTEM, Vic en Bigorre (FR)
Appl. No. 18/010,394
Filed by ISP SYSTEM, Vic en Bigorre (FR)
PCT Filed Jun. 10, 2021, PCT No. PCT/EP2021/065659
§ 371(c)(1), (2) Date Dec. 14, 2022,
PCT Pub. No. WO2021/254879, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 2006212 (FR), filed on Jun. 15, 2020.
Prior Publication US 2023/0296860 A1, Sep. 21, 2023
Int. Cl. G02B 7/195 (2021.01); G02B 7/18 (2021.01); G02B 26/08 (2006.01)
CPC G02B 7/1815 (2013.01) [G02B 26/0825 (2013.01)] 13 Claims
OG exemplary drawing
 
1. Reflective optics for transporting, transforming or correcting a light beam, the reflective options comprising:
a mirror receiving the light beam;
a primary cooling circuit formed by an intermediate chamber of thermally conductive fluid arranged against a whole rear side of the mirror; and
a secondary cooling circuit formed by a thermal heat sink arranged against the intermediate chamber of thermally conductive fluid, the heat sink being either in the form of a cold mass cooled by convection or conduction, or in the form of a plate made from a material with good thermal conductivity, the heat sink having a size and a shape equivalent to those of the reflective optics.