Material comprising a substrate provided with a stack with thermal properties for head-up display

US12151967B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Yael BRONSTEIN · Paris, FR
• Amaury Patissier · Bourg-la-Reine, FR
• Xavier Caillet · Champ d'Agonges, FR

Key dates

• Filing date: Jul 28, 2020
• Grant date: Nov 26, 2024
• Expiry date: Nov 27, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B32B2605/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A material includes a transparent substrate coated on one face with a stack of thin layers successively including, from the face, an alternation of four functional metal layers based on silver and five dielectric coatings. The physical thickness Ea1 of the first functional layer Ag1 is less than the physical thickness Ea2 of the second functional layer Ag2, with 0.60<Ea1/Ea2<0.90. The physical thickness Ea1 of the first functional layer Ag1 is such that 8.00≤Ea1≤13.00 nm. The physical thickness Ea1 of the first functional layer Ag1 is less than the physical thickness Ea3 of the third functional layer Ag3, with 0.60<Ea1/Ea3<0.90. The physical thickness Ea1 of the first functional layer Ag1 is less than the physical thickness Ea4 of the fourth functional layer Ag4, with 0.60<Ea1/Ea4<0.90.