Illuminable laminated sunroof for a vehicle, vehicle having such an illuminable laminated sunroof

An illuminable laminated sunroof for a vehicle, comprising:

• a laminated glazed unit including:
• a first transparent sheet made of mineral glass, with a first main face, a second, opposing, main face and a first edge face, intended to form an exterior glass,
• a polymer lamination interlayer comprising an upper intermediate layer, in adhesive contact with the second main face or with a functional transparent coating on the second main face,
• a second transparent sheet made of mineral glass or polymer, with a third main face, a fourth, opposing, main face and a second edge face,
• a transparent optical insulating layer, having a refractive index n2 in the visible range, which optical insulating layer is of submillimetric thickness and at least 400 nm,
• a coated substrate that comprises:
• a transparent film, made of material different from a fluoropolymer, with a front main face oriented toward the second main face and an opposing rear main face of submillimetric thickness,
• the optical insulating layer, which is an optical insulating coating, made of material comprising a matrix different from a fluoropolymer, on one of the front main face or the rear main face forming a coated face, and an edge face,
• and wherein:
• in a first configuration i), the first transparent sheet and/or the upper intermediate layer being tinted, the second sheet has a refractive index n1, the coated substrate is laminated between the second and third main faces, and is between the upper intermediate layer and a lower intermediate layer of refractive index n3 in the visible range, in adhesive contact with the third main face or with a functional transparent coating on the third main face, n2 is less than n1, a difference in refractive indices n1−n2 being at least 0.06 in the visible range
• or in a second configuration j), the illuminable laminated sunroof comprises a third sheet, made of mineral glass or polymer sheet, with a fifth main face, a sixth main face and a third edge face, having a refractive index n′1, which third sheet is bonded with the second sheet via another lamination interlayer comprising another upper intermediate layer and another lower intermediate layer in contact with the fifth main face and having a refractive index in the visible range, the coated substrate is between the other upper and lower intermediate layers of said other lamination interlayer,
• at least one element being tinted from the first transparent sheet, intermediate layer of the lamination interlayer, the second transparent sheet, the other upper intermediate layer,
• n2 is less than n′1, a difference in refractive indices n′1−n2 being at least 0.06 in the visible range.