US 12,138,656 B2
Method for applying a carbon-based reflective overcoating on a grazing incidence optical unit
Giovanni Pareschi, Merate (IT); Marta Maria Civitani, Merate (IT); Giorgia Sironi, Merate (IT); Giuseppe Valsecchi, Bosisio Parini (IT); Luca Magagnin, Milan (IT); and Eugenio Gibertini, Milan (IT)
Assigned to ISTITUTO NAZIONALE DI ASTROFISICA, (IT); POLITECNICO DI MILANO, (IT); and MEDIA LARIO S.R.L., (IT)
Appl. No. 17/634,472
Filed by ISTITUTO NAZIONALE DI ASTROFISICA, Rome (IT); POLITECNICO DI MILANO, Milan (IT); and MEDIA LARIO S.R.L., Bosisio Parini (IT)
PCT Filed Aug. 13, 2020, PCT No. PCT/IB2020/057628
§ 371(c)(1), (2) Date Feb. 10, 2022,
PCT Pub. No. WO2021/028865, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 19191474 (EP), filed on Aug. 13, 2019.
Prior Publication US 2022/0331836 A1, Oct. 20, 2022
Int. Cl. B05D 5/06 (2006.01); B05D 3/06 (2006.01); B05D 7/24 (2006.01); G21K 1/06 (2006.01)
CPC B05D 5/063 (2013.01) [B05D 3/06 (2013.01); B05D 7/24 (2013.01); G21K 1/067 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for applying a carbon-based reflective overcoating on a grazing incidence optical unit, the optical unit comprising a substrate and a coating of a first material, the method comprising: treating the optical unit with a liquid solution containing at least one organic precursor material to cause an absorption of the precursor material on said coating, and forming said carbon-based reflective overcoating from the precursor material, wherein the optical unit comprises a monolithic shell of nickel and the first material is a high-density material chosen from the group consisting of gold, platinum, iridium, palladium, rhodium, ruthenium, chrome and nickel.