A lighting system for illuminating an environment with a lighting that simulates natural lighting, which includes: a first light source which emits a beam of visible light; a diffused-light generator delimited by an inner surface, which receives the light beam, and an outer surface, the diffused-light generator being at least partially transparent to the light beam. The diffused-light generator transmits at least part of the light beam and emits, through the outer surface, visible diffused light, the correlated color temperature of the transmitted light being lower than the CCT of the visible diffused light. The lighting system includes a dark structure which is optically coupled to the environment via the diffused-light generator and provides a substantially uniform background to the first light source.

A stretched-web structure for producing a false ceiling or a dropped ceiling box in a room, including two flexible webs arranged parallel to one another and fastened stretched between at least one wall, wherein one of the webs is made of polyvinyl chloride and the other web is made of fabric.

A stretched-web structure for producing a false ceiling or a dropped ceiling box in a room, including two flexible webs arranged parallel to one another and fastened stretched between at least one wall, wherein one of the webs is made of polyvinyl chloride and the other web is made of fabric.

A slab frame formed from abutting profile sections each comprising means for attaching at least one tensioned fabric, each profile section comprising two walls connected together by a web, wherein the web comprises two grooves each delimited by the two walls and the web, one of the grooves having an opening at an external periphery of a frame and the other groove emerging at an internal periphery of the frame, each wall being provided, at their respective end delimiting the opening of the groove, with a means for attaching a tensioned fabric, and in that at least one of the profile sections comprises light-emitting means fixed to the inside of the associated groove having an opening at the external periphery of the frame.

A slab frame formed from abutting profile sections each comprising means for attaching at least one tensioned fabric, each profile section comprising two walls connected together by a web, wherein the web comprises two grooves each delimited by the two walls and the web, one of the grooves having an opening at an external periphery of a frame and the other groove emerging at an internal periphery of the frame, each wall being provided, at their respective end delimiting the opening of the groove, with a means for attaching a tensioned fabric, and in that at least one of the profile sections comprises light-emitting means fixed to the inside of the associated groove having an opening at the external periphery of the frame.

A luminous false-wall device, comprising: a chassis constituted by at least one profile, the chassis comprising an upper part directed toward a panel to be covered, such as a wall or ceiling, and a lower part; a diffusing canvas fixed on the chassis and stretched on the lower part of the chassis; a light placed between the panel and the canvas configured to emit light in the direction of the canvas; wherein the chassis is provided with means of increasing the light intensity of the light.

A luminous false-wall device, comprising: a chassis constituted by at least one profile, the chassis comprising an upper part directed toward a panel to be covered, such as a wall or ceiling, and a lower part; a diffusing canvas fixed on the chassis and stretched on the lower part of the chassis; a light placed between the panel and the canvas configured to emit light in the direction of the canvas; wherein the chassis is provided with means of increasing the light intensity of the light.

A ceiling panel according to the present invention has opposed translucent membranes secured in a tensioned state across a perimeter frame. The frame includes frame members that are designed to oppose inward bowing of the perimeter frame caused by the tensioned membranes. The frame members have a side profile shaped to conceal a grid support network with the lower translucent member extending across and about a lower edge of the perimeter frame. The invention also includes a modified structure for supporting of translucent panels below a grid network.

A ceiling panel according to the present invention has opposed translucent membranes secured in a tensioned state across a perimeter frame. The frame includes frame members that are designed to oppose inward bowing of the perimeter frame caused by the tensioned membranes. The frame members have a side profile shaped to conceal a grid support network with the lower translucent member extending across and about a lower edge of the perimeter frame. The invention also includes a modified structure for supporting of translucent panels below a grid network.

An integrated ceiling and light system that incorporates a light module into a ceiling tile. The system may include a grid support system suspended from an overhead support structure that includes at least one grid support element and first and second ceiling tiles supported by the grid support element in an adjacent manner. A nesting cavity may be formed into the first and second ceiling tiles such that a light module may be disposed within the nesting cavity and coupled to the first and second ceiling tiles. The ceiling tiles may be of the type that conceals the grid support element on which it is supported. In one alternative embodiment, the light module and a nesting region of the ceiling tile may include corresponding edge profiles to facilitate mating therebetween to enable coupling of the light source to the ceiling tile.