Projection device for a head-up display (HUD), comprising at least: a windshield (10) comprising an outer pane (1) and an inner pane (2) connected to one another by a thermoplastic intermediate layer (3), which has an HUD region (B); and-a projector (4) aligned with the HUD area (B); wherein the radiation of the projector (4) is predominantly p-polarized; and-a reflective coating (20) suitable for reflecting p-polarized radiation, in which-the reflective coating (20) comprises exactly one conductive layer (21) based on silver,-the reflective coating (20) below the conductive layer (21) comprises a lower dielectric layer structure (22) having a refractive index of at least 1.9,-the reflective coating (20) above the conductive layer (21) comprises an upper dielectric layer structure (23) having a refractive index of at least 1.9; and-a functional coating (40) suitable for reflecting IR radiation wherein the functional coating (40) and the reflective coating (20) are arranged between the inner pane (2) and the outer pane (1) wherein the reflective coating (20) is arranged between the inner pane (2) and the functional coating (40).
用于平视显示器(HUD)的投影装置,其至少包括‑挡风玻璃(10),其包括通过热塑性中间层(3)彼此连接的外玻璃板(1)和内玻璃板(2),其具有HUD区域(B);和‑投影仪(4),其对准HUD区域(B);其中投影仪(4)的辐射主要是p偏振的;和‑反射涂层(20),其适合反射p偏振辐射,其中‑反射涂层(20)包含恰好一个基于银的导电层(21),‑反射涂层(20)在导电层(21)的下方包括下部介电层结构(22),其折射率为至少1.9,‑反射涂层(20)在导电层(21)的上方包括上部介电层结构(23),其折射率为至少1.9;和‑功能涂层(40),其适合反射IR辐射,其中功能涂层(40)和反射涂层(20)布置在内玻璃板(2)与外玻璃板(1)之间,其中反射涂层(20)布置在内玻璃板(2)与功能涂层(40)之间。
PROJECTION DEVICE WITH P-POLARIZED RADIATION FOR HEAD-UP DISPLAY (HUD)
用于平视显示器(HUD)的具有p偏振辐射的投影装置
2022-07-05
Patent
Electronic Resource
Chinese
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS |
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