公开(公告)号：US12138656B2

公开(公告)日：2024-11-12

申请号：US17634472

申请日：2020-08-13

Applicant: ISTITUTO NAZIONALE DI ASTROFISICA ,  POLITECNICO DI MILANO ,  MEDIA LARIO S.R.L.

Inventor： Giovanni Pareschi ,  Marta Maria Civitani ,  Giorgia Sironi ,  Giuseppe Valsecchi ,  Luca Magagnin ,  Eugenio Gibertini

IPC: B05D5/06 ,  B05D3/06 ,  B05D7/24 ,  G21K1/06

Abstract: A method for applying a carbon-based reflective overcoating on a grazing incidence optical unit comprising a substrate and a coating of a high-density material chosen from the group comprising gold, platinum, iridium, palladium, rhodium, ruthenium, chrome and nickel or a low-density material such as carbon or B4C; the method comprises the step of treating the optical unit with a solution or gaseous phase containing at least one polymer precursor material to create the overcoating through absorption of the polymer material on the coating.

公开(公告)号：US11945017B2

公开(公告)日：2024-04-02

申请号：US18005093

申请日：2021-07-14

Applicant: ISTITUTO NAZIONALE DI ASTROFISICA

Inventor： Marta Maria Civitani ,  Luigi Lessio ,  Giovanni Pareschi ,  Giorgio Toso ,  Salvatore Incorvaia

IPC: B21D22/14 ,  B23K31/02 ,  C23C18/16 ,  C23C18/32

CPC classification number: B21D22/14 ,  B23K31/02 ,  C23C18/1689 ,  C23C18/32

Abstract: A process for manufacturing an optical element comprising a first step of spinning a circular sheet of a first metallic material for it to adhere to a rotating matrix and form a shell; a second step of assembling the shell on a temporary support; and at least a third step of diamond turning the shell by means of a diamond tool to obtain an optical surface.