Disclosed is a luminaire (100) comprising a chamber delimited by a body (110) defining a light exit surface of the luminaire; and an optical cavity (135) inside the chamber such that the chamber comprises a volume (112) delimited by the body and the optical cavity, wherein the optical cavity is delimited by a first parabolic mirror (120) and a second parabolic mirror (130) facing the first parabolic mirror, the second parabolic mirror comprising an aperture (132) facing the volume, the optical cavity comprising a light source (140) mounted inside said cavity; wherein the first parabolic mirror and the second parabolic mirror are shaped to create an image (12) of the light source in the volume.

A method of producing an optoelectronic component includes providing an optoelectronic semiconductor chip, selecting a wavelength-converting element in dependence on a dominant wavelength of an electromagnetic radiation that can be emitted by the optoelectronic semiconductor chip, and situating the selected wavelength-converting element in a beam path of the optoelectronic semiconductor chip to form an optoelectronic arrangement, wherein the wavelength-converting element is selected such that chromaticity coordinates of an electromagnetic radiation that can be emitted by the optoelectronic arrangement lie within a specified value range of chromaticity coordinates, a peak wavelength of a blue peak of the electromagnetic radiation that can be emitted by the optoelectronic arrangement lies within a specified value range of peak wavelengths, and the value range of peak wavelengths is 438 nm to 458 nm.

A lighting device includes a substrate, a light source arranged on the substrate, and an optical cover arranged on the substrate. The optical cover includes an outside cover layer, an inside cover layer, and a quantum dots layer hermetically sandwiched between the outside cover layer and the inside cover layer. The optical cover and the substrate cooperatively define a enclosure space. The light source is located in the enclosure space. The inside cover layer is adjacent to the light source. In the enclosure space, a heat insulating gap is defined between the light source and the inside cover layer.

An illumination device projects light in a predetermined illumination pattern on a surface. The illumination device includes a housing having a cavity and an aperture that opens into the cavity. The illumination device further includes a light module operatively attached to the housing for selectively emitting the light into the cavity. Furthermore, the illumination device includes a digital light panel at least partially disposed in the cavity between the light module and the aperture. The digital light panel has at least one opening defining a base pattern configuration corresponding to the predetermined illumination pattern for aligning the light emitted from the light module through the opening into the base pattern configuration and subsequently projecting the light through the aperture onto the surface in the predetermined illumination pattern.

A lighting unit includes an architectural panel having an overall thickness that is measured between a first surface that is configured to be exposed to light output by the lighting unit and a second surface that is opposite the first surface, and a light fixture embedded in the architectural panel. The light fixture includes a solid state light source, an optic, a power supply and a driver circuit that at least partially embedded in the recess of the panel. The light fixture is configured to output light in an output direction extending out away from the first surface of the panel. The light fixture extends from the first surface of the panel in a direction opposite the output direction by a distance that is less than the overall thickness of the architectural panel.

A method for manufacturing a rotationally adjustable lamp (1) is disclosed. The method comprises: molding a shell (6) having a guiding slot (7a); providing a base (2) configured to receive the shell (6) and connect to a lamp socket; inserting the shell (6) into the base (2) so as to enclose the guiding slot (7a) by the base (2); and forming in the base (2), when the shell (6) is inserted into the base (2), a notch (5) protruding into the guiding slot (7a), the notch (5) being movable along the guiding slot (7a) so as to allow for the shell (6) to be rotated relative to

A window system has, within the window frame, a solar panel on the outside and a lighting panel on the inside. An efficient, non-transparent, thermal insulation layer can be used between the solar panel and the lighting panel.

A hybrid optical system, and lighting devices including the same, are provided. The hybrid optical system includes a cellular optical element a light control film. The cellular optical element includes a first opening, a second opening, and a space defined therebetween. The light control film includes a single layer of light transparent material having a first side and a second side, and a plurality of first microstructures formed on the first side. The light control film is located within the space of the cellular optical element. The light control film may include a plurality of second microstructures formed on the second side to reduce glare. The hybrid optical system may include a plurality of interconnected cellular optical elements.

A lighting unit includes an architectural panel having an overall thickness that is measured between a first surface that is configured to be exposed to light output by the lighting unit and a second surface that is opposite the first surface, and a light fixture embedded in the architectural panel. The light fixture includes a solid state light source, an optic, a power supply and a driver circuit that at least partially embedded in the recess of the panel. The light fixture is configured to output light in an output direction extending out away from the first surface of the panel. The light fixture extends from the first surface of the panel in a direction opposite the output direction by a distance that is less than the overall thickness of the architectural panel.

Provided is a projection system, a light source system, and a light source assembly. The light source system (100) comprises an excitation light source (101), a wavelength conversion device (106), a color filtering device (107), a drive device (108), and a first optical assembly. The wavelength conversion device (106) comprises at least one wavelength conversion region. The optical filtering device (107) is fixed face-to-face with the wavelength conversion device (106), and comprises at least a first optical filtering region. The drive device (108) drives the wavelength conversion device (106) and the optical filtering device (107), allowing the wavelength conversion region and the first optical filtering region to act synchronously, and the wavelength conversion region is periodically set on the propagation path of the excitation light, thereby converting the excitation light wavelength into converted light. The first optical assembly allows the converted light to be incident on the first optical filtering region. The first optical filtering region filters the converted light, so as to enhance the color purity of the converted light. The light source system is simple in structure, easy to implement, and highly synchronous.