Abstract:
A lighting fixture (4) comprising: fitting means (9) for fitting the lighting fixture (4) to a ceiling (28) of a room, a specified ceiling height above a floor of the room; one or more first parts (20) having one or more first lighting surfaces (22) for emitting a first illumination output (21); and one or more protruding members (24) having one or more second lighting surfaces (26) for emitting a second illumination output (25). The one or more first lighting surfaces (22) are arranged such that the one or more first lighting surfaces (22) face downward from the ceiling (28), so that the first illumination output (21) illuminates a space below the lighting fixture (4). The one or more protruding members (24) are arranged such that the one or more second lighting elements protrude downward from the ceiling (28) with the one or more second light-emitting surfaces (26) facing sideways, so as to project the second illumination output (25) sideways. One, some or all of the protruding members (24) comprise a sound absorbing material such that the lighting fixture (4) integrates an acoustic baffle function.
Abstract:
The invention relates to an assembly of a shade and a light source positioned inside the shade. The shade is light transmissive and has a first opening and a second opening. The light source comprises one or more first light-emitting elements configured to emit white light in a first direction and through the first opening of the shade; one or more second light-emitting elements configured to emit white light in a second direction and through the second opening; and one or more third light-emitting elements configured to emit light in a third direction and towards the shade.
Abstract:
Techniques are disclosed for designing light fixtures for flexible LED circuit boards. The flexible LED circuit boards include an array of LED packages and the surface of the flexible circuit boards is highly reflective. A flexible LED circuit board may be shaped to conform to a rigid preform and the preform may be concave, convex, corrugated, or have any other custom shape. The shape of the preform, as well as the location of the LEDs within the flexible LED circuit may determine the light distribution of the light fixture. Alternatively, the lighting fixture may have multiple rods held in place with side plates and a flexible LED circuit board may be woven between the rods. A set of hole patterns in the side plates determine the location of the rods and the rods will determine the shape of the flexible LED circuit.
Abstract:
A lighting device (1) comprising a housing (3) with a light emission window(5) and,opposite thereto,a reflector (7). A planar light transmissive carrier (9) arranged in between the light emission window and the reflector and comprising,at least on a side (11) facing towards the reflector,a grid (13) of a plurality of light sources (15,17). The plurality of light sources comprise a first group (19) of first light sources (15) and a second group (21) of second light sources (19). Each first light source has a respective first emission orientation (23) in a respective first direction (25) away from the reflector and each second light source has a respective second emission orientation (31) to issue light towards the reflector, which light,after reflection,is redirected into a respective first direction (25a). The lighting device is able to provide accent lighting and/or diffuse lighting issued by light sources arranged on one planar carrier.
Abstract:
A design of lighting fixture is presented whereby the outer glass lens - flat in prior art lighting fixtures - is bowed outward. The design of lighting fixture permits a plurality of LED modules to be contained therein, each with their own visor, without constraining the aiming angle of each due to interference between the outer lens and each individual visor. In this manner, an external visor may be omitted thereby obviating undesirable lighting effects such as uneven lighting while still maintaining a reduced effective projected area (EPA) as compared to prior art lighting fixtures with no external visor and a flat outer glass lens.
Abstract:
An integrated and modular lighting system is disclosed. The lighting system includes a plurality of modules, each module including at least two echelons of light emitting diodes and a power supply on a common substrate. The modular lighting system is used to provide uniform illumination of an enclosed display stand.
Abstract:
The present invention provides an optical system that includes an array of opto-electronic devices, an array of micro lenses, and a fore optic. The array of opto-electronic devices lie substantially along a plane, but the fore optic has a nonplanar focal field. To compensate for the non-planar focal field of the fore optic, each opto-electronic device has a corresponding micro lens. Each micro lens has a focal length and/or separation distance between it and it respective optoelectronic device, which compensates for the non-planar focal field of the fore optic. The focal lengths of these lenses may differ relative to one another. As a result, light that is provided by the fore optic is reconfigured by the micro lenses having various focal lengths to be substantially focused along the plane of the array of opto-electronic devices. Various arrangements of microlenses, placing lenses on standoffs or posts, forming of optical waveguides, lens fabrication, wafer integration of micro-optics, and optical coupling are noted.
Abstract:
An LED platform (100) configured to be installed in a light bulb (150) includes a mounting board assembly (110) configured to be coupled to mains supply conductors (130, 135) within the light bulb (150), one or more LEDs (115) disposed on the mounting board assembly (110), and a power supply (120) mounted on the mounting board assembly (110), the power supply (120) configured to receive mains power from the mains supply conductors (130, 135) and provide power to the one or more LEDs (115).