Control instructions are transmitted to receivers by modulating light sources to generate light beams that are modulated with digital data streams for inducing control instructions in the light beams. Each light beam is applied to a pixel shaper element of a pixel shaper assembly to produce a light pixel, each light pixel carrying the control instructions of the light beam, each light pixel having a perimeter defined by the pixel shaper element. The pixel shaper assembly combines the light pixels into an image without significant overlap or voids between the light pixels. The light pixels are directed toward a projector lens for transmission toward the receivers. In a receiver, an optical receiver detects a light pixel. A controller decodes the control instructions received in the detected light pixel and uses the control instructions to control a function of the receiver.

Control instructions are transmitted to receivers by modulating light sources to generate light beams that are modulated with digital data streams for inducing control instructions in the light beams. Each light beam is applied to a pixel shaper element of a pixel shaper assembly to produce a light pixel, each light pixel carrying the control instructions of the light beam, each light pixel having a perimeter defined by the pixel shaper element. The pixel shaper assembly combines the light pixels into an image without significant overlap or voids between the light pixels. The light pixels are directed toward a projector lens for transmission toward the receivers. In a receiver, an optical receiver detects a light pixel. A controller decodes the control instructions received in the detected light pixel and uses the control instructions to control a function of the receiver.

A luminaire including: at least one light source (2), and an optical system (10, 11, 12a, 12b) for directing and/or distributing the light (5) emitted by the source(s) (2) into a desired output light distribution pattern (7); wherein the optical system comprises one or more optical elements (10, 11, 12a, 12b), the or each said optical element (10, 11, 12a, 12b) comprising a thin foil or sheet substrate having at least one optically functional surface or surface layer thereon or on a portion thereof, and wherein: (i) at least a portion of the at least one optically functional surface or surface layer on the substrate of at least one of the one or more optical elements (10, 11, 12a, 12b) has an at least partially diffractive optical function, and/or (ii) at least a portion of the at least one of the one or more optical elements (10, 11, 12a, 12b) is shaped such that its substrate is configured so as to have a non-flat or non-planar shape in three dimensions.

A luminaire including: at least one light source (2), and an optical system (10, 11, 12a, 12b) for directing and/or distributing the light (5) emitted by the source(s) (2) into a desired output light distribution pattern (7); wherein the optical system comprises one or more optical elements (10, 11, 12a, 12b), the or each said optical element (10, 11, 12a, 12b) comprising a thin foil or sheet substrate having at least one optically functional surface or surface layer thereon or on a portion thereof, and wherein: (i) at least a portion of the at least one optically functional surface or surface layer on the substrate of at least one of the one or more optical elements (10, 11, 12a, 12b) has an at least partially diffractive optical function, and/or (ii) at least a portion of the at least one of the one or more optical elements (10, 11, 12a, 12b) is shaped such that its substrate is configured so as to have a non-flat or non-planar shape in three dimensions.

Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.

Provided is a light-emitting device with reduced in-plane luminance variation. The light-emitting device includes a main substrate, a plurality of light sources, a plurality of lenses, and one or more light reflection members. The main substrate includes a central part and a peripheral part that surrounds the central part. The plurality of light sources are each disposed on the central part of the main substrate. The plurality of lenses are disposed to correspond to the plurality of light sources respectively. The plurality of lenses apply optical effects to beams of light from the plurality of light sources respectively. One or more light reflection members are each disposed on the peripheral part. The light reflection members each have reflectance that is higher than the reflectance of the main substrate.

A lighting lamp is provided. The lighting lamp includes a light module and a lens. The lens includes a lens body, provided with a first end and a second end which are opposite to each other and a side wall located between the first end and the second end, in which a light source of the lighting lamp is arranged at the first end, and at least a portion of the side wall is configured as a light emitting component. The lens also includes a light incident component, arranged at the first end of the lens body, in which the light incident component irradiates light emitted by the light source to the second end. The lens includes a light reflecting component, arranged at the second end of the lens body.

A lighting lamp is provided. The lighting lamp includes a light module and a lens. The lens includes a lens body, provided with a first end and a second end which are opposite to each other and a side wall located between the first end and the second end, in which a light source of the lighting lamp is arranged at the first end, and at least a portion of the side wall is configured as a light emitting component. The lens also includes a light incident component, arranged at the first end of the lens body, in which the light incident component irradiates light emitted by the light source to the second end. The lens includes a light reflecting component, arranged at the second end of the lens body.

A light projector for signalling high obstacles, having an elongate cylindrical lens, a linear light source in which the light projector has at least two reflectors and at least one of the reflectors is an upper reflector positioned above the horizontal plane of symmetry of the cylindrical lens and below an upper surface of the cylindrical lens, and at least one of the reflectors is a lower reflector positioned below the horizontal plane of symmetry of the cylindrical lens and above a lower surface of the cylindrical lens, the reflectors being configured to interrupt light rays from the light source that are oriented outside the elevation angular sector of the main flat light beam is disclosed.

A light projector for signalling high obstacles, having an elongate cylindrical lens, a linear light source in which the light projector has at least two reflectors and at least one of the reflectors is an upper reflector positioned above the horizontal plane of symmetry of the cylindrical lens and below an upper surface of the cylindrical lens, and at least one of the reflectors is a lower reflector positioned below the horizontal plane of symmetry of the cylindrical lens and above a lower surface of the cylindrical lens, the reflectors being configured to interrupt light rays from the light source that are oriented outside the elevation angular sector of the main flat light beam is disclosed.