The invention relates to a luminaire (1) having a housing which is closed by a translucent cover (11). The housing accommodates a light source and control gear (6), the light source being formed from a plurality of LEDs (8) arranged on at least one circuit board (9). According to the invention the light from the LEDs (8) is coupled into at least one light guide (7) which extends from the cover (11) towards the LEDs (8). The coupled-in light from the LEDs (8) is guided in the light guide (7) to the cover (11) and is preferably emitted diffusely.

The invention relates to a luminaire (1) having a housing which is closed by a translucent cover (11). The housing accommodates a light source and control gear (6), the light source being formed from a plurality of LEDs (8) arranged on at least one circuit board (9). According to the invention the light from the LEDs (8) is coupled into at least one light guide (7) which extends from the cover (11) towards the LEDs (8). The coupled-in light from the LEDs (8) is guided in the light guide (7) to the cover (11) and is preferably emitted diffusely.

The invention provides an acoustic panel comprising a plurality of parallel-arranged elongated cavities, wherein each cavity has a first cavity wall and a second cavity wall tapering to a cavity back end and defining a cavity opening angle (γ) having a value in the range of 0°<γ<90°, wherein the first cavity wall and the second cavity wall comprise a light-reflective material, wherein each elongated cavity at the cavity back end of the elongated cavity accommodates a light source having a light exit surface, wherein the first cavity walls hide the light exit surfaces of the light sources when the acoustic panel is viewed along a normal to the acoustic panel, and wherein the acoustic panel further comprises sound reducing material.

Embodiments are disclosed of a lighting apparatus including a fixture adapted to accommodate a camera having imaging optics that define an optical axis, wherein the fixture includes an open end through which the imaging optics can capture an image. One or more side-emitting illumination light sources are positioned adjacent to the open end, the plurality of side-emitting light sources positioned to direct light toward a plane intersected by the optical axis. Other embodiments are disclosed and claimed.

Embodiments are disclosed of a lighting apparatus including a fixture adapted to accommodate a camera having imaging optics that define an optical axis, wherein the fixture includes an open end through which the imaging optics can capture an image. One or more side-emitting illumination light sources are positioned adjacent to the open end, the plurality of side-emitting light sources positioned to direct light toward a plane intersected by the optical axis. Other embodiments are disclosed and claimed.

A daylight redirecting window film having a layered structure with a total thickness of less than one millimeter and having a first optically transmissive film, a second optically transmissive film approximately coextensive with the first optically transmissive film, an intermediate layer of a relatively soft optically transmissive material disposed between the first and second optically transmissive films, a parallel array of linear three-dimensional structures formed in a space between the first and second optically transmissive films, a layer of an optically transmissive adhesive coating a surface of the first optically transmissive film, and a two-dimensional pattern of light scattering surface microstructures formed in an outer surface of the second optically transmissive film. The parallel array of linear three-dimensional structures defines a parallel array of linear channels, and each of the linear three-dimensional structures has a total internal reflection wall extending transversely through a portion of the layered structure.

A device comprising a circuit board, said circuit board having a plurality of LEDs dispose on said circuit board, and a chassis, said chassis having a plurality of baffles, each baffle formed by bending a portion of the chassis substantially orthogonally to the surface of the chassis leaving a plurality of holes in said chassis, said holes spaced substantially the same spacing as the plurality of LEDs. The baffles may operate to shield light emitted from the LEDs to either 30 degrees, 45 degrees or 60 degrees. Also included is a housing operable to secure the circuit board and chassis into a fixed position.

A device comprising a circuit board, said circuit board having a plurality of LEDs dispose on said circuit board, and a chassis, said chassis having a plurality of baffles, each baffle formed by bending a portion of the chassis substantially orthogonally to the surface of the chassis leaving a plurality of holes in said chassis, said holes spaced substantially the same spacing as the plurality of LEDs. The baffles may operate to shield light emitted from the LEDs to either 30 degrees, 45 degrees or 60 degrees. Also included is a housing operable to secure the circuit board and chassis into a fixed position.

A lighted display assembly for an appliance includes interchangeable display screens. Multiple light sources flash, turn on and turn off to indicate a status of the appliance by illuminating a selected one of the display screens. A display grid extends continuously between the light sources and the selected display screen and defines light passages that are each uniquely associated with one or more corresponding light sources. Light emitted by each light source is confined to a discrete area of the display screen by the corresponding light passage. The discrete areas of the interchangeable display screens may include any of a variety of markings, for example, markings in a different language. The assemblies may be tailored to the needs of a particular customer by selecting an appropriate display screen.

A daylight redirecting window film formed by a flexible multi-layer film laminate with a total thickness of less than one millimeter and configured to be applied to an indoor-facing window surface of a building facade. The window film includes a pair of outer film substrates flanking a light redirecting core layer. The core layer includes a parallel array of channels defining total internal reflection (TIR) surfaces and linear optically transmissive structures protruding transversely thought the core layer and bonded to the outer film substrates. A light output surface of the outer film substrate which is disposed on an indoor-facing side of the laminate includes a two-dimensional pattern of light scattering microstructures which are configured to spread light at least in a plane that is perpendicular to the channels. The TIR surfaces intercept and reflect a portion of sunlight propagating through the core layer such that the window film redirects that portion of incident sunlight towards a plurality of divergent directions, forming relatively high bend angles.