US 11,788,704 B2
Motor vehicle headlamp
Jochen Sattler, St. Georgen am Ybbsfeld (AT); Thomas Haas, Mank (AT); and Lukas Dienstbier, Wieselburg an der Erlauf (AT)
Assigned to ZKW Group GmbH, Wieselburg (AT)
Appl. No. 17/640,459
Filed by ZKW Group GmbH, Wieselburg (AT)
PCT Filed Sep. 3, 2020, PCT No. PCT/EP2020/074630
§ 371(c)(1), (2) Date Mar. 4, 2022,
PCT Pub. No. WO2021/043917, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 19195422 (EP), filed on Sep. 4, 2019.
Prior Publication US 2022/0325865 A1, Oct. 13, 2022
Int. Cl. F21S 41/50 (2018.01); B60Q 1/04 (2006.01); C03C 17/36 (2006.01); C23C 14/00 (2006.01); C23C 14/08 (2006.01); C23C 14/18 (2006.01); C23C 14/20 (2006.01); C23C 14/34 (2006.01)
CPC F21S 41/50 (2018.01) [B60Q 1/04 (2013.01); C03C 17/3605 (2013.01); C03C 17/3657 (2013.01); C03C 17/3684 (2013.01); C23C 14/0015 (2013.01); C23C 14/0036 (2013.01); C23C 14/083 (2013.01); C23C 14/185 (2013.01); C23C 14/205 (2013.01); C23C 14/34 (2013.01); C03C 2218/155 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A motor vehicle headlamp (8) comprising
a vehicle headlamp housing (9);
an at least sectionally transparent cover pane (10) that closes the vehicle headlamp housing (9);
a light source (11) that is accommodated in the vehicle headlamp housing (9) and serves for radiating light through the cover pane (10); and
at least one motor vehicle design element (3) that is accommodated in the vehicle headlamp housing (9), wherein the at least one motor vehicle design element (3) comprises a dimensionally stable substrate (1) with at least one coated side,
wherein the coated side of the substrate (1) has at least two sections that differ with respect to their surface design, namely a first section (3a) that has a rough surface and a second section (3b) that has a smooth surface,
wherein the coating of the coated side of the substrate (1) is formed by at least a first chromophoric and metallically reflective layer (L1) and a second chromophoric layer (L2) covering the first layer (L1), wherein the second layer (L2) is at least partially transparent and designed in such a way that the light incident on the at least one motor vehicle design element (3) is at least partially manipulated due to interference in that the light beams (LS1) reflected by the surface of the first layer (L1) are superimposed with the light beams (LS2) reflected by the surface of the second layer (L2), and
wherein the respective layers (L1, L2) are applied in such a way that the surface designs of the respective sections (3a, 3b) of the substrate (1) are transferred to the layers (L1, L2) such that light incident on the respective layer in the region of the first section (3a, 3b) is scattered in accordance with the surface design of the first section (3a) of the substrate (1) and light incident on the respective layer in the region of the second section (3b) is reflected in accordance with the surface design of the second section (3b) of the substrate (1).