Backlit Floor Construction

Floor construction comprising:

• plural layers, the plural layers comprising at least one top layer and at least one subjacent layer underneath the at least one top layer,
• and light sources arranged in one or more patterns in the at least one subjacent layer;
• wherein the at least one top layer is translucent so as to hide the light source as well as the patterns when the light sources are off and to reveal the one or more patterns when the light sources are on;
• wherein the light sources are connected to a controller having a user interface allowing a user to switch one or more of the patterns on and off;
• wherein the light sources are LEDs;
• where the light sources comprise red, green, and blue LEDs, and/or white LEDs;
• wherein the LEDs are or comprise OLEDs;
• wherein the light source are protected from pressures exerted on the top layer;
• wherein the light sources are individually controllable;
• wherein the at least one subjacent layer comprises a concrete layer, the light sources being arranged in the concrete layer;
• wherein the one or more patterns include at least one of emergency path indications, game lines, orientation helps, a logo, a pictogram, a traffic sign, an icon;
• a controller connected to the light sources for controlling the light sources and the revealing of the one or more patterns, and
• one or more pressure sensors connected to the controller, the pressure sensors being preferably arranged in or underneath the at least one top layer in the vicinity of and/or overlapping with the one or more patterns;
• the controller being configured to control the light sources and the revealing of the one or more patterns depending on signals received by the controller from the one or more pressure sensors;
• wherein the light sources are arranged in one or more two-dimensional arrays forming the one or more patterns, wherein the floor construction comprises a controller connected to the light sources the controller being configured to dynamically control the light sources in such a way as to reveal dynamical patterns as pixel images;
• wherein the at least one top layer is translucent but not transparent;
• wherein the at least one top layer comprises a resilient multilayer floor covering comprising a foam layer, a calendered polymer sheet, a printed layer and a wear layer;
• wherein the foam layer is PVC-based open-cell or closed-cell foam;
• wherein the printed layer comprises a pigment plastisol-based printing substrate carrying one or more layers of ink;
• wherein the printed layer comprises a PVC-based printing substrate carrying one or more layers of ink;
• wherein the calendered polymer sheet is PVC-based;
• wherein the calendered sheet comprises a fibre glass veil;
• wherein the at least one subjacent layer comprises one or more through-shaped channel profiles accommodating the light sources;
• wherein the through-shaped channel profiles are aluminium profiles,
• wherein the through-shaped channel profiles are glued or screwed to the underground;
• wherein a through-shaped channel profile comprises a base, a first side wall and a second side wall delimiting a channel, wherein said light sources are accommodated;
• wherein each of the first side wall and the second side wall comprises a ledge or protrusion supporting a translucent cover element covering the light sources, the top surface of the translucent cover element being flush with the top surface of the subjacent layer so as to form a substantially flat support surface for the at least one top layer;
• wherein the translucent cover element is a light diffuser, e.g. made of PMMA;
• wherein the through-shaped channel profile comprises anchoring elements for anchoring the through-shaped channel profile in the subjacent layer;
• wherein the anchoring elements comprise at least one protrusion or indentation for interlocking the through-shaped channel profile with the subjacent layer;
• wherein the subjacent layer comprises screed concrete, the top surface of the screed concrete being substantially flush with the upper edges of the one or more through-shaped channel profiles;
• and
• wherein the light sources are encapsulated in one or more translucent polymer blocks arranged in the one or more through-shaped channel profiles, the top surface of the one or more translucent polymer blocks being substantially flush with the upper edges of the one or more through-shaped channel profiles.

Floor construction comprising:

• plural layers, the plural layers comprising at least one top layer and at least one subjacent layer underneath the at least one top layer,
• and light sources arranged in one or more patterns in the at least one subjacent layer;
• wherein the at least one top layer is translucent so as to hide the light source as well as the patterns when the light sources are off and to reveal the one or more patterns when the light sources are on;
• wherein the light sources are connected to a controller having a user interface allowing a user to switch one or more of the patterns on and off;
• wherein the light sources are LEDs;
• wherein the light sources comprise red, green and blue LEDs, and/or white LEDs;
• wherein the LEDs are or comprise OLEDs;
• wherein the light source are protected from pressures exerted on the top layer;
• wherein the light sources are individually controllable;
• wherein the at least one subjacent layer comprises a concrete layer, the light sources being arranged in the concrete layer;
• wherein the one or more patterns include at least one of emergency path indications, game lines, orientation helps, a logo, a pictogram, a traffic sign, an icon;
• a controller connected to the light sources for controlling the light sources and the revealing of the one or more patterns, and
• one or more pressure sensors connected to the controller, the pressure sensors being preferably arranged in or underneath the at least one top layer in the vicinity of and/or overlapping with the one or more patterns;
• the controller being configured to control the light sources and the revealing of the one or more patterns depending on signals received by the controller from the one or more pressure sensors;
• wherein the light sources are arranged in one or more two-dimensional arrays forming the one or more patterns, wherein the floor construction comprises a controller connected to the light sources the controller being configured to dynamically control the light sources in such a way as to reveal dynamical patterns as pixel images;
• wherein the at least one top layer is translucent but not transparent;
• wherein the at least one top layer comprises a resilient multilayer floor covering comprising a foal layer, a calendered polymer sheet, a printed layer and a wear layer;
• wherein the foam layer is PVC-based open-cell or closed-cell foam;
• wherein the printed layer comprises a pigmented plastisol-based printing substrate carrying one or more layers of ink;
• wherein the printed layer comprises a PVX-based printing substrate carrying one or more layers of ink;
• wherein the calendered polymer sheet is PVC-based;
• wherein the calendered sheet comprises a fibre glass veil;
• wherein the light sources are encapsulated in one or more translucent polymer blocks embedded in the subjacent layer, the subjacent layer comprising screed concrete, the top surface of the screed concrete being substantially flush with the top surface of the one or more translucent polymer blocks;
• wherein the one or more translucent polymer blocks are glued or screwed to the underground;
• wherein the subjacent layer comprises a layer of closed-cell foam, the top surface of the closed-cell foam being substantially flush with the top surface of the one or more translucent polymer blocks;
• wherein the shore hardness of the closed-cell foam is at least approximately equal to the shore hardness of the one or more translucent polymer blocks;
• and
• wherein the shore A or shore D hardness of the closed-cell foam differs from the shore A or shore D hardness, respectively, of the one or more translucent polymer blocks by not more than 5 units.