US 12,226,978 B2
Transparent roof panel having an isolated center unit
Thomas Anton Martijnszoon Albers, Venray (NL); Sander De Bie, Nuth (NL); and Gerrit Schwepper, Kamp-Lintfort (NL)
Assigned to INALFA ROOF SYSTEMS GROUP B.V., Oostrum (NL)
Filed by Inalfa Roof Systems Group B.V., Oostrum (NL)
Filed on Feb. 8, 2022, as Appl. No. 17/666,927.
Claims priority of application No. 21156668 (EP), filed on Feb. 11, 2021.
Prior Publication US 2022/0255493 A1, Aug. 11, 2022
Int. Cl. B32B 3/24 (2006.01); B32B 3/26 (2006.01); B32B 5/14 (2006.01); B32B 7/023 (2019.01); B32B 7/12 (2006.01); B32B 17/10 (2006.01); B60J 1/00 (2006.01); B60J 1/20 (2006.01); B60J 7/04 (2006.01); B60J 7/043 (2006.01); B60Q 3/208 (2017.01); B60R 16/02 (2006.01); H02S 40/34 (2014.01); H02S 10/40 (2014.01)
CPC B32B 17/10293 (2013.01) [B32B 3/266 (2013.01); B32B 7/023 (2019.01); B32B 17/10036 (2013.01); B32B 17/10192 (2013.01); B32B 17/1022 (2013.01); B32B 17/10376 (2013.01); B32B 17/10385 (2013.01); B60J 1/001 (2013.01); B60J 1/008 (2013.01); B60J 7/04 (2013.01); B60J 7/043 (2013.01); B60Q 3/208 (2017.02); B60R 16/02 (2013.01); H02S 40/34 (2014.12); B32B 5/142 (2013.01); B32B 17/1011 (2013.01); B32B 17/10183 (2013.01); B32B 17/10339 (2013.01); B32B 17/1055 (2013.01); B32B 2307/202 (2013.01); B32B 2307/412 (2013.01); B32B 2307/414 (2013.01); B32B 2605/006 (2013.01); B32B 2605/08 (2013.01); B60J 1/20 (2013.01); H02S 10/40 (2014.12); Y10T 428/24322 (2015.01); Y10T 428/24331 (2015.01); Y10T 428/24802 (2015.01); Y10T 428/24917 (2015.01); Y10T 428/24926 (2015.01); Y10T 428/24942 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A transparent panel for use in a vehicle roof of a vehicle, the transparent panel comprising:
a layered stack comprising:
a first transparent pane comprising a first main surface and a second main surface, opposite the first main surface;
a second transparent pane comprising a third main surface, facing the second main surface, and a fourth main surface, opposite the third main surface, the second transparent pane comprising a through hole extending between the third and the fourth main surface; and
an electrically conductive assembly arranged between the second and the third main surface, the electrically conductive assembly comprising:
a first terminal arranged in a first area of the layered stack, the first area being adjacent to a circumferential edge of the through hole;
a second terminal arranged in a second area of the layered stack, the second area being adjacent to a circumferential edge of the transparent panel; and
a visually-transparent conductive layer electrically coupling the first terminal and the second terminal and being arranged in an intermediate area of the layered stack, the intermediate area being adjacent to the first and the second area, wherein the visually-transparent conductive layer of the electrically conductive assembly comprises two or more electrically conductive leads, the two or more electrically conductive leads extending between the first terminal and the second terminal, wherein a cross-section of the two or more electrically conductive leads has a width that is smaller than about 100 micrometres, the width of the two or more electrically conductive leads extending in parallel to the second main surface, wherein the two or more electrically conductive leads comprises a first lead and a second lead, wherein the first lead is shorter than the second lead and wherein an electrical resistance of the first lead is higher than an electrical resistance of the second lead;
wherein the intermediate area has an optical transmissivity higher than an optical transmissivity of the first area and optionally higher than an optical transmissivity of the second area; and
an electric apparatus mounted on the fourth main surface covering the through hole and first area, the electric apparatus being electrically coupled to the electrically conductive assembly through the through hole.