The present disclosure relates to a field stage lighting, in particular to an LED projection lamp. The LED projection lamp includes an optical lens cover, a first aluminum substrate, a second aluminum substrate, and a first housing. A first glass lens bracket, a glass lens, and a second glass lens bracket are respectively arranged on an upper end of the first aluminum substrate. A water ripple sheet is arranged on a lower end of the first aluminum substrate. Condensing lens is arranged on an upper end of the second aluminum substrate. A motor is arranged on a lower end of the second aluminum substrate. A second housing is arranged on a lower end of the first housing.

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.

In an aspect, a moon appearance generating system (1) is configured for providing an enhanced depth perception to imitate a sky scene, for example, a natural sky scene at night. The moon appearance generating system (1) comprises a luminous device (7) with a primary light emitting area (9) that is configured to provide, when the moon appearance generating system (1) is operated to imitate the sky scene, a two-dimensional spatial profile of a luminous flux density across the primary light emitting area (9) with a mean luminous flux density value of at least 5 lm/m2, a maximum luminous flux density value of less than about 150000 lm/m2, wherein the mean luminous flux density value is at least 2% of the maximum luminous flux density value; and a frame structure (25) providing an exit aperture (5) through which the primary light emitting area (9) is completely viewable from within an enhanced depth perception observation range (33), wherein the exit aperture (5) is associated with an inner frame line (25A) that surrounds at least an area of 20 cm width and 20 cm height.

A lamp is provided that includes a light source (119), having a laser diode (111, 511, 911) and a fluorescent sheet (112). The laser (121, 521, 621, 721, 921) emitted from the laser diode (111, 511, 911) is focused on the fluorescent sheet (112) and excites the fluorescent sheet (112) to emit fluorescent light (123, 323). The fluorescent sheet (112) has a transparent thermally conductive substrate (512a, 612a, 712a, 912a, 1012a) and a fluorescent coating (512b, 612b, 712b, 912b, 1012b) attached to the substrate, and has a diaphragm plate (717) disposed at a rear end of an optical path of the fluorescent sheet (112) and attached to the fluorescent sheet (112), the diaphragm plate (717) having a light-transmitting zone (717a) and a light-shading zone (717b) closely adjacent to each other. The diaphragm plate (717) can at least partially block light around a light-emission spot.

An illumination system includes: a first luminaire that emits first illumination light having a color simulating a sky; a second luminaire that is disposed in a same space as the first luminaire, the second luminaire projecting, on an object, second illumination light simulating sunlight to create a sunny portion on the object; and a controller that causes the first luminaire to emit the first illumination light according to an environment reproduction condition.

A lamp is provided that includes a light source (119), having a laser diode (111, 511, 911) and a fluorescent sheet (112). The laser (121, 521, 621, 721, 921) emitted from the laser diode (111, 511, 911) is focused on the fluorescent sheet (112) and excites the fluorescent sheet (112) to emit fluorescent light (123, 323). The fluorescent sheet (112) has a transparent thermally conductive substrate (512a, 612a, 712a, 912a, 1012a) and a fluorescent coating (512b, 612b, 712b, 912b, 1012b) attached to the substrate, and has a diaphragm plate (717) disposed at a rear end of an optical path of the fluorescent sheet (112) and attached to the fluorescent sheet (112), the diaphragm plate (717) having a light-transmitting zone (717a) and a light-shading zone (717b) closely adjacent to each other. The diaphragm plate (717) can at least partially block light around a light-emission spot.

An illumination apparatus that is to be disposed in a recess formed in a part of a building includes: a light-emitting module that includes a board and a plurality of light-emitting elements disposed on the board; a light diffuser that has translucency and covers the light-emitting module; and a light reflector that includes a wall having light-reflecting properties and surrounding the plurality of light-emitting elements. Among the plurality of light-emitting elements, every two adjacent light-emitting elements are disposed on the board at a first interval. Among the plurality of light-emitting elements, a light-emitting element closest to the wall is disposed on the board with a second interval to the wall, the second interval being larger than of the first interval and smaller than the first interval.

Systems, methods, and apparatus for fiber optic lighting panels that produce twinkling star patterns by means of a light engine and specialized optics are disclosed. In one or more embodiments, a disclosed panel for creating a lighted scene comprises a substrate comprising a first surface, a second surface spaced from the first surface, and a plurality of apertures through the first and second surfaces. The panel further comprises an optical lens disposed on the first surface within each of the apertures. Also, the panel comprises a light distribution unit (LDU) comprising a plurality of light sources coupled to the second surface. Further, the panel comprises a bundle of optical fibers coupled to each of the light sources, where each of the optical fibers is in communication with one of the optical lenses for transferring light emitted by the light sources to create the lighted scene.

An illumination apparatus includes a plurality of light emitters, and a light control component that transmits light emitted from the plurality of light emitters. The light control component includes a first diffusion layer and a second diffusion layer. A first perpendicular haze is lower than a first diagonal haze, the first perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the first diffusion layer, and the first diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the first diffusion layer. A second perpendicular haze is higher than a second diagonal haze, the second perpendicular haze indicating a diffusion degree of light traveling perpendicular to a light emission surface of the second diffusion layer, and the second diagonal haze indicating a diffusion degree of light traveling diagonal to the light emission surface of the second diffusion layer.

An illumination apparatus includes: a case having an opening portion; a first light source disposed in the case and including a plurality of light-emitting elements; a light diffuser which is disposed in the opening portion, diffuses and transmits light emitted from the first light source, and from which the diffused light and the transmitted light exit; a light emission component disposed outside a light exit region of the light diffuser on a light exit surface side of the light diffuser; and a second light source that emits light to the light emission component to cause the light emission component to radiate light.