Abstract: The present disclosure relates generally to a ceiling tile, for example, suitable for use in a ceiling grid. The present disclosure relates more particularly to a ceiling tile including a light housing extending across a first portion of a width of the ceiling tile, and a panel extending across a remaining portion of the width of the ceiling tile.

Abstract: A light irradiation device includes a protective tube, which has a wire insertion path therein, a light source unit facing and disposed along an upper part of the protective tube, and a gutter-shaped concave reflection mirror facing the light source unit and provided below the protective tube. The concave reflection mirror is received in a gutter-shaped concave accommodating part provided in a holding body, and has flange portions extending from the outer surface in the horizontal direction. The convex reflection mirror is detachably affixed to the holding body with the flange portions.

Abstract: A downlight eyebrow includes an elongated L-shaped structure including a first wall and a second wall forming a right angle. The downlight eyebrow may be installed at an upper edge of a vertical structure with the first eyebrow wall extending horizontally away from an upper edge of the structure and the second wall extending vertically downward from the first wall. A reflective material disposed on an interior surface of the second wall provides a primary reflector. A flange that extends from an intermediate point in the eyebrow, downward and away from the second wall, toward the vertical surface may provide a secondary reflector.

Abstract: The present invention discloses a LED retrofit troffer, comprising a lamp housing and a lampshade, wherein, the bottom side of the lamp housing contains a bottom plate extending outwards, and the outer edge of the bottom plate is arranged on the mounting joist; the side edge of the bottom plate is arranged with a hanging plate, which is mounted on the lower side of the bottom plate via a plurality of connecting mechanisms and movably connected with the bottom plate, and a locking mechanism is arranged to lock the position of the hanging plate on the bottom plate. The present invention is convenient for mounting and disassembly, capable of being firmly fixed, and has attractive appearance, with wide acceptance.

Abstract: An illumination device includes a plurality of excitation light sources; a fluorescent plate for receiving the excitation light and emitting fluorescent light; and an optical system for causing excitation light from each of the plurality of excitation light sources to be incident on the fluorescent plate, the optical system includes a plurality of reflection surfaces for redirecting the output from the respective excitation light sources into a divergent light pattern.

Abstract: A lighting assembly includes a light source, such as an ultraviolet (UV) light source that is configured to emit UVC light, and a reflector system including a base having an internal central crest that is configured to direct emitted light away from the light source.

Abstract: A reconfigurable modular cornice box display system includes a cornice box having a front member, a left member and a right member which collectively form an outwardly facing display surface. One or more décor pieces can be selectively positioned and magnetically affixed anywhere on the display surface. The décor pieces are magnetically affixed to discrete elements arrayed in the cornice box. A décor piece illumination system includes a tri-color back light source and a magnetic sensor associated with each of said discrete elements operative to sense the magnetic coupling of a given décor piece to a given discrete element and to back illuminate said given décor piece. An electronic control system selectively activates the décor piece illumination system in response to operator inputs and microprocessor based programming instructions. A flood light assembly is disposed within said cornice box which is longitudinally and rotationally repositionable. The light sources are tri-color devices.

Abstract: A vehicle light (1, 11) produces low-beam output using generally spherical distribution light source (7) with increased efficiency. The vehicle light (1) includes transmissive lens (2) through which light exits vehicle light (1); concave reflector (3); light occluding member (100) defining first sub-reflector (6); cut-off edge (4); and second sub-reflector (5). Concave reflector (3) extends upward above light occluding member (100) and directs low-beam light toward transmissive lens (2). Light occluding member (100) is disposed horizontally proximate a longitudinal axis of the vehicle light and low-beam light is reflected between concave reflector (3) and light occluding member (100) toward transmissive lens (2).

Abstract: Illumination systems are described for illuminating a target area, e.g., a floor of a room, using active illumination devices in optical communication with passive illumination devices. The active and passive illumination devices of the illumination system are configured and arranged relative to each other in a variety of ways so a variety of intensity distributions can be provided by the illumination system. Such illumination system is implemented to provide light for particular lighting applications, including office lighting, garage lighting, or cabinet lighting.

Abstract: A component housing band includes a center portion that comprises an aperture extending through the center portion and a mounting structure disposed adjacent to the aperture. The mounting structure extends from a surface of the center portion in a direction that is substantially normal to the corresponding surface of the center portion. The mounting structure engages the ends of a notch in a lens and forms a cavity to house an electronic component. Further, the component housing band includes a first elongated arm portion and a second elongated arm portion integral with the center portion and extending away from opposite ends of the center portion in opposite directions, respectively. The ends of the first elongated arm portion and the second elongated arm portion that are away from the center portion and opposite to each other are adapted to engage with corresponding latch structures of the lens.

Abstract: A component housing band includes a center portion that comprises an aperture extending through the center portion and a mounting structure disposed adjacent to the aperture. The mounting structure extends from a surface of the center portion in a direction that is substantially normal to the corresponding surface of the center portion. The mounting structure engages the ends of a notch in a lens and forms a cavity to house an electronic component. Further, the component housing band includes a first elongated arm portion and a second elongated arm portion integral with the center portion and extending away from opposite ends of the center portion in opposite directions, respectively. The ends of the first elongated arm portion and the second elongated arm portion that are away from the center portion and opposite to each other are adapted to engage with corresponding latch structures of the lens.

Abstract: Provided is an outdoor lighting assembly including at least one lighting arrays having one or more light sources configured for lighting a plurality of zones. At least one controller is operatively coupled to the at least one lighting array. The controller is configured to independently change optical outputs of the one or more light sources in each of the zones.

Abstract: A 4 pin LED retrofit lamp for replacement of socket fitted CFL lamp driven by fluorescent ballast is provided. The retrofit lamp comprises a plurality of LEDS in connection with the fluorescent ballast. The circuit of the lamp comprises a bridge rectifier that converts the AC waveform into DC and a capacitor to filter the resulting waveform.

Abstract: An LED optical assembly includes a linear array of LEDs, longitudinal reflecting surfaces along each side of the array and medial reflecting surfaces between the LEDs. The longitudinal reflecting surfaces include surfaces of rotation centered on the optical axis of each LED interspersed with linear reflecting portions defined by curves projected along a linear focal axis of the assembly.

Abstract: The annular-arranged lamp capable of backward projecting by concave sphere provided by this invention is mainly provided with a side of an annular heat dissipation device being installed with light emitting devices (102) wherein the lamp is installed with two or more than two light emitting devices (110) arranged in a circular or polygonal means, and the light projecting axial line of each light emitting device (110) is projected towards a reflection device with concave sphere (103) disposed above the annular heat dissipation device (101), light beams of the light emitting devices (110) are reflected by the reflection device with concave sphere (103) then refracted to a preset projection range, thereby forming a unified light source.

Abstract: A lighting device comprises a housing; a coupling member coupled to the housing, comprising a first outer surface and a second outer surface, and having an insertion recess disposed between the first outer surface and the second outer surface; a first reflector disposed between the first outer surface of the coupling member and the housing; a second reflector disposed between the second outer surface of coupling member and the housing; and a light source unit comprising a first body and a second body, wherein the first body comprises a first coupling unit coupled to a first inner surface of the insertion recess and a first light emitting device emitting lights to the first reflector, wherein the second body comprises a second coupling unit coupled to a second inner surface of the insertion recess and a second light emitting device emitting lights to the second reflector.

Abstract: Light engines for inclusion in luminaires. Some embodiments of the light engine include a heat sink, a reflector, and light emitting diodes. Some embodiments of the heat sink include perforations. The reflector includes a reflective surface that extends around at least a portion of the light emitting diodes. In some embodiments, a portion of the reflector is sandwiched between the light emitting diodes and the heat sink. In some embodiments, an end of the reflector terminates above the light emitting diodes to reduce the concentration of light directly above the light emitting diodes but rather distribute the light outwardly from the luminaire.

Abstract: A lighting device (1) is configured to include: an elongated flat substrate (2); a plurality of semiconductor light sources (3) arranged on the flat substrate in a longitudinal direction of the flat substrate; and a lens plate (4) disposed to face the semiconductor light sources, wherein the lens plate includes a lens-light-incident surface facing the semiconductor light sources and includes a lens-light-emitting surface, a first lens section (5) is formed on one of the lens-light-incident surface and the lens-light-emitting surface and distributing the light emitted by the semiconductor light source in the longitudinal direction, a second lens section (9) is formed on the other one of the lens-light-incident surface and the lens-light-emitting surface for distributing the light emitted by the semiconductor light sources in a width direction, and the first lens section has a curvature surface unit including two or more convex section curvature surfaces having different curvature radii and formed adjacent in t

Abstract: A lighting device includes a light bar, two reflective covers and a reflective plate. The two reflective covers respectively connected to two opposite long sides of the light bar. The reflective plate is positioned at the light output side of the light bar. The reflective surface of the reflective plate faces the light output side of the light bar. The reflective plate has a wavelength conversion layer positioned on the reflective surface thereof. The light bar emits a first wavelength light, and a portion of the first wavelength light is converted by the wavelength conversion layer into a second wavelength light which is reflected by the reflective plate to the two reflective covers, while the remaining non-converted first wavelength light is reflected by the reflective plate to the two reflective covers and mixed with the second wavelength lights to give a light with a predetermined spectrum.

Abstract: A power-saving lighting apparatus including an upper housing, a bottom cover assembled with the upper housing, a lighting module and a positioning member is provided. The lighting module is disposed between the upper housing and the bottom cover, and the lighting module is mechanically supported by the bottom cover. The positioning member is disposed on the lighting module, wherein a relative position of the lighting module and the bottom cover is maintained by the positioning member.

Abstract: A lighting device includes a housing, at least one reflector disposed inside the housing; and a light source unit being disposed inside the housing and emitting light toward the reflector, wherein the light source unit includes a light emitting groove formed therein, the light emitting groove including a basal surface sloped toward the reflector, and wherein a plurality of light emitting devices are disposed sloping along the basal surface in the light emitting groove, and wherein the light emitting groove includes a projection part formed from the basal surface, the projection part blocking the light emitted directly from a plurality of the light emitting devices to the outside of the housing.

Abstract: A shutter includes micro-optics having first and second concentrator arrays. A transducer laterally displaces one of the first and second concentrator arrays between transmissive and shuttered modes. In the transmissive mode, the arrays of concentrators are optically aligned to permit electromagnetic energy passing through the first array of concentrators to pass through the second array of concentrators. In the shuttered mode, the electromagnetic radiation is blocked from passing through the second array of concentrators. The concentrators may be compound parabolic concentrators, or lenslets positioned on opposing plates with pinholes printed therethrough. The shutter may increase f-number of radiation passing therethrough, and may be used in a limited f-cone radiation source with shuttering abilities, for example reducing f-cone of radiation output from the radiation source.

Abstract: A light assembly that includes an elongated housing, a reflective parabolic cylindrical surface within the elongated housing having a focal line and an elongated cover coupled to the elongated housing. The light assembly also includes a plurality of light sources spaced apart longitudinally and emitting light toward the parabolic cylindrical surface. The parabolic cylindrical surface reflects light from the light sources out of the housing through the cover.

Abstract: An exemplary LED lamp includes a heat dissipation module, a light source mounted on the heat dissipation module, a cover engaging the heat dissipation module and covering the light source, a reflective layer mounted on the cover, and two connectors secured at two corresponding ends of the cover and the heat dissipation module. The cover has an inner surface and a convex outer surface. The inner surface includes a first concave surface and two second concave surfaces at lateral sides of the first concave surface. The second concave surfaces face the LEDs and configured as light incident surfaces; light emitted by the LEDs incidents onto the second concave surfaces and travels through the cover to an outside for lightening. A part of the light is reflected by the reflective layer before travelling to the outside.

Abstract: By narrowing the length of an irradiation area, a scan distance is shortened and a process time of a light irradiation process is shortened. A light irradiation apparatus irradiating light to a substrate by using a long arc lamp includes: a reflection mirror having a cross-sectional shape which is an oval or parabolic shape and having a shape as if light irradiated is condensed on the surface of the substrate; and a slit limiting an irradiation area of the irradiated light, wherein on a section perpendicular to a long axis of the long arc lamp, a main irradiation area length X and a gap H between the long arc lamp and the substrate satisfy a relationship of X<0.087H.

Abstract: A shutter includes micro-optics having first and second concentrator arrays. A transducer laterally displaces one of the first and second concentrator arrays between transmissive and shuttered modes. In the transmissive mode, the arrays of concentrators are optically aligned to permit electromagnetic energy passing through the first array of concentrators to pass through the second array of concentrators. In the shuttered mode, the electromagnetic radiation is blocked from passing through the second array of concentrators. The concentrators may be compound parabolic concentrators, or lenslets positioned on opposing plates with pinholes printed therethrough. The shutter may increase f-number of radiation passing therethrough, and may be used in a limited f-cone radiation source with shuttering abilities, for example reducing f-cone of radiation output from the radiation source.

Abstract: A linear light source emits light beams for illuminating a target. The linear light source includes a light guide, a light-emitting unit, and a reflecting layer. The light guide has a bottom surface, first and second reflecting surfaces extending from opposite side edges of the bottom surface, respectively, and a light converging convex surface connected to the first and second reflecting surfaces and curved outward with respect to the bottom surface. The first and second reflecting surfaces are symmetrical segments of an imaginary parabolic curved surface having a parabolic transverse section opening toward the light converging convex surface. The light-emitting unit is for emitting light beams that propagate along the light guide and that exit via the light converging convex surface. The reflecting layer is disposed on the first and second reflecting surfaces.

Abstract: This is directed to a LED light fixture having a shaped light guide array with a CPC reflector for directing light off-axis, and methods for constructing the same. A LED light fixture includes a LED module providing light and an elongated light guide array placed adjacent to the LED module. The elongated light guide array can include a curved outer surface through which light is emitted into an environment. To further control the output of light, and to direct light off-axis, the light guide array can include a CPC reflector disposed around a boundary or periphery of the light guide array. The CPC reflector can be angled such that light is directed at angles above a cut-off angle by which the reflector is rotated about a focus.

Abstract: An illumination system includes a light source and a reflector. The reflector includes a first optical interface adjacent the light source which redirects light emitted from the light source and incident on the first optical interface via Fresnel reflection. In addition, the reflector includes a second optical interface adjacent the first optical interface on a side opposite the light source, which reflects light passing through the first optical interface via total internal reflection back towards the first optical interface. Also, a light collection system includes such a reflector.

Abstract: The present invention provides an illuminator system comprising a dual reflector system and a linear light source. The dual reflector system comprises a primary and secondary generally cylindrical reflector, which collimate light from a linear light source in two planes. The linear light source may comprise many light emitting devices, and may emit light in a strobe or continuous fashion. The reflectors may be of many cylindrical shapes, and may include additional mirror segments to capture light otherwise not collimated. Further, the reflectors may be in various configurations of position and orientation with respect to one another, and may be adjustable in this respect. The system is more efficient than existing illuminators, is compact, all reflective (no colour), lightweight, simple and inexpensive to manufacture. The system has applications to many fields including machine vision, surveillance, spectroscopic inspection of materials, and converting linear light sources into rectangular beam spot lights.

Abstract: An illumination apparatus includes a linear array of light emitting diode (LED) chips disposed on a support. A linear reflector assembly has a light coupling reflector portion and a one dimensional light collimation or focusing portion. The linear reflector assembly is secured to the support parallel with the linear array of LED chips. An encapsulant is disposed in the light coupling reflector portion of the linear reflector assembly and pots the LED chips. An elongate phosphor element is disposed over the encapsulant such that the light coupling reflector portion and the encapsulant enhance light coupling between the LED chips and the elongate phosphor element, and the one-dimensional light collimation or focusing portion one-dimensionally collimates or focuses light emitted by the combination of the LED chips and the elongate phosphor element.

Abstract: The invention relates to an elongate light fixture having a substantially triangular cross-section. The light fixture is screwed to a supply duct with the rear wall thereof. A front rail runs parallel to the rear wall. Transparent panels and are inserted detachably between the rear wall and rail. In the interior of the light fixture, a fluorescent lamp is provided as the luminous element. The light emitted by said fluorescent lamp is reflected upward by way of reflector surfaces that open in the shape of a funnel and is scattered diffusely in the direction A by means of the frosted panel. The panel surfaces, which likewise open in the shape of a funnel, reflect the light exiting downward from the lamp in the direction toward the panel, the grooved structure of which ensures that the light is deflected substantially in the direction B, while the portion of the side light exiting in the direction C is reduced.

Abstract: A lamp includes at least one luminous source (14, 6, 8), in particular a low-pressure discharge lamp, for producing main illumination and having at least one alternative luminous element (22), in particular a light-emitting diode arrangement having at least one LED, for producing alternative illumination, which are arranged on a cap (12) , and having electronics, wherein a switching arrangement, which can be actuated manually, for operating the lamp in the main illumination mode, the alternative illumination mode or in both illumination modes at the same time is provided in the cap.

Abstract: A light assembly that includes an elongated housing, a reflective parabolic cylindrical surface within the elongated housing having a focal line and an elongated cover coupled to the elongated housing. The light assembly also includes a plurality of light sources spaced apart longitudinally and emitting light toward the parabolic cylindrical surface. The parabolic cylindrical surface reflects light from the light sources out of the housing through the cover.

Abstract: The invention relates to a lamp with a first light source generating white light, comprising at least one fluorescent lamp (2) or an incandescent lamp, as well as a second light source comprising at least one set of light-emitting diodes (4, 5; 300), and comprising a reflector (1) for the light emitted by the light sources, wherein a cooling device (6, 7) for the at least one set of light-emitting diodes (4, 5) is attached to the reflector (1) and is thermally linked to the at least one set of light-emitting diodes (4, 5), and wherein the lamp comprises a translucent and light-dispersing medium (3) in the optical path of the light emitted by the lamp.

Abstract: A lamp arrangement is disclosed, with at least one low-pressure discharge lamp, in particular, a compact fluorescent lamp to generate a main illumination with at least one discharge bulb, fitted in a socket and at least one alternative light source, in particular, a light diode arrangement with at least one light diode (LED) for generation of an alternative illumination. According to the invention, the light diode arrangement is at least partly arranged in the vicinity of cold spots on the low pressure discharge lamp.

Abstract: An optical device for effectively adjusting the F-number of an elliptical lamp is provided, the elliptical lamp for producing a focused light beam at a given focal point having a given cone angle. The optical device comprises a light interaction portion for optically interacting with the focused light beam when the light interaction portion is in general longitudinal alignment with a light emitting aperture of the elliptical lamp, the light interaction portion for triggering optical adjustment of a cone angle of at least a high cone angle portion of the focused light beam to a smaller cone angle. The optical device further comprises a light egress portion, coupled to the light interaction portion, for enabling exit of the focused light beam from the optical device with an effective cone angle smaller than the given cone angle, after the cone angle of the at least the high cone angle portion of the focused light beam has been adjusted to the smaller cone angle.