Abstract: A modular lighting system features a universal mounting method for lighting elements, such as LED lights, as well as various electrical devices, and is configurable in multiple modes of operation. In one aspect, LED strips are inserted into slots in the lower surface of the rail member. Another aspect allows operation with tube lamps, such LED tube lamps. In still another mode of operation, discrete electrical or electromechanical components may be employed, powered by electrical power available in the rail. In yet another more, an up and down, bidirectional lighting system is provided.

Abstract: The luminaire comprises a housing including at least one optical module. The optical module has a plurality of light emitting diodes disposed within a reflector. The reflector includes opposed curved longitudinal walls and opposed curved end walls.

Abstract: Lighting retrofit systems and methods are disclosed that can be used with different light fixtures, but that are particularly adapted for use with retrofitting troffer-style fixtures with LED based light engines. The retrofit systems being assembled without disturbing the lighting or troffer pan or housing (“troffer pan”) for the lighting system being retrofitted. Some of these embodiments can comprise a mounting fixture or frame that can be mounted in an opening in a ceiling grid, and held in place between the grid and the troffer pan edge. The fixture or frame can comprise an opening for a light engine, with the engine being quickly and easily connected to electrical power in the troffer pan and then mountable within the frame opening. These embodiments can allow for the quick and easy construction of the retrofit system without the need for adhesives and fasteners such brackets and screws.

Abstract: A lighting system includes a longitudinal flexible metal strip which may be helically rolled, first and second clamps securing opposite ends of the metal strip to first and second selected locations, and a longitudinally extending strip with lights such as LEDs secured to one side of the longitudinal metal strip. The first and second clamps each include a clamp arm secured to a base by a ball and socket connection.

Abstract: Lighting apparatuses including a first endcap including a first light socket, a second endcap spaced from the first endcap including a second light socket, reflector rotatably attached between the first endcap and the second endcap, the reflector including a reflective surface partially enclosing a reflector interior space and defining a focal point within the reflector interior space. The first light socket and second light socket are collectively configured to support light sources substantially near the focal point. The first endcap and the reflector include complimentarily configured interlocking members.

Abstract: A LED tubular lamp has a luminous tube, a center column, a plurality of LED chips, fixtures, connective plates and lamp heads; a plurality of grooves are provided on the center column, materials having high reflectivity are provided on the grooves, the plurality of LED chips are arranged on the grooves so as to form a light source with 360-degree light irradiation, the center column is provided in the luminous tube and fixedly connected to lamp heads via the fixtures and the connective plates. The LED tubular lamp can emit light at an angle of 360 degrees, thereby increasing the range of the irradiation of the luminous tube, making light more even and the problem of glaring being solved.

Abstract: An LED lighting device includes a lampshade, a plurality of LED light sources and a light guiding member. The light guiding member is arranged inside the lampshade, and includes a plurality of plates each having a connecting end, wherein the connecting ends of the plurality of plates are connected together. Each plate includes two surfaces, one or two of which includes a plurality of accentuated portions, and one of the plates defines a light incident surface opposing the LED light sources. After entering the light guiding member from the light incident surface, the light from the LED light sources is reflected between opposite surfaces of each plate of the light guiding member. Light reaching the accentuated portions is diffused and exits the light guiding member, to be finally transmitted outside through the lampshade.

Abstract: A lighting device including a housing, a coupling member being coupled to an inner upper surface of the housing, having an insertion groove formed in the middle part thereof in a direction of the inner upper surface of the housing, and having a first connection terminal provided in the middle of the insertion groove, at least one reflector coupled between an inner wall surface of the housing and an outer wall surface of the coupling member; and a light source unit having an upper part thereof attachable to and removable from the coupling member by using the insertion groove, having a second connection terminal provided in the upper part thereof, the second connection terminal being electrically connected to the first connection terminal when connected to the coupling member, and having a lower part thereof emitting light toward the reflector.

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: The present disclosure provides a backlight module. The backlight module includes at least one light tube. Each light tube includes a light emitting side for emitting light and a first micro-structure disposed on the light emitting side for breaking total reflections of the light in the light tube. With the first micro-structure disposed on the light emitting side of the light tube, the total reflections of the light in the light tube can be broken to allow the light to be emitted from the light tube evenly. Also, the reflecting structure is disposed on non-light emitting side for improving the using efficiency of the light and reducing the manufacturing cost of the backlight module. Additionally, the fluorescent layer is coated on the light emitting side for improving a color saturation level of a LCD using the backlight module.

Abstract: A reaction-testing system is provided to simulate motion to an individual. Generally, the reaction-testing system includes a motion-simulating device, a reflective device, a control unit, and an input device that is activated by an individual In exemplary embodiments, the motion-simulating device includes a beam that accommodates a first and second plurality of light sources capable of, at least, alternating between an active and idle condition. These light sources are arranged amongst occlusion features in a mounting pattern such that light emitted from the first plurality is directly viewable by an individual and light emitted from the second plurality is indirectly viewed by the individual through the reflecting surface. The control unit is configured to sequentially activate the light sources sequentially to generate pulses of light on that, when perceived by the individual, appear as a light moving along a vector.

Abstract: A lighting effect device is provided, which is used for equipment with an operation surface that has a reflective characteristic. The lighting effect device includes at least a light supply unit for forming a light layer above the operation surface. The light layer is not crossed with the operation surface, where at least part of light of the light layer forms a visible lighting effect around an operator after reflected by the operator entering the light layer. The device requires less light sources and no position detection, so that the device is inexpensive and reliable. At the same time, a dodging layer and/or a reflective layer improve lighting effect and provide user a better experience.

Abstract: A lamp with diffuser sheets for highly illuminative efficiency includes a base having a central rod, at least one light bar attached on the central rod and electrically communicating to a light processing unit, a plurality of LED illuminants being equidistantly set up on the light bar, a cover being composed of diffuser sheets with uniform thickness, the cover being flexible, the diffuser sheet being made from polycarbonates which have high reflection coefficient for directing as much light as possible, the cover enclosing the base, the light processing unit being set in a base, the light processing unit being used to light up at different modes. In this way, only fewer LED illuminants can perform as a LED ring tube or a plurality of LED sources with a circular arrangement to illuminate the environment with the same illumination, but it costs less energy because fewer light sources are used.

Abstract: A light emitting device includes a light reflector and a first light source. The light reflector includes a first concave surface and a second concave surface immediately adjacent to the first concave surface. The convex ridge is located between the first and second concave surface and has an apex line extending along a direction. The first light source is located at a side of the first concave surface and opposite to the convex ridge. The first light source has a first emitting surface facing the convex ridge. The convex ridge has an apex located higher than a bottom of the first emitting surface, but lower than a top of the first emitting surface.

Abstract: A utility illumination device comprises a first end member, a second end member and a light tube coupled between the first end member and the second end member. The first end member has at least one faceted surface along an edge thereof. Analogously, the second end member has at least one faceted surface along an edge thereof. The illumination device further comprises an illumination assembly within the light tube that comprises a light source. The illumination device is manually adjustable to change the direction of light emitted from the illumination device.

Abstract: The linear light source apparatus includes an elongated rectangular wiring substrate; a plurality of light-emitting devices which are aligned on a straight line on the top surface of the wiring substrate; reflectors provided on the top surface such that each reflector corresponds to one light-emitting device; a sealing resin portion which seals each of the light-emitting devices; and a heat radiation sheet provided on the bottom surface of the wiring substrate. A plurality of grooves are provided on the bottom surface of the substrate. Each groove is formed so as to have a line shape and to extend in a lateral direction of the wiring substrate. Each of the grooves is located between adjacent light-emitting devices. The heat radiation sheet is provided on the entire bottom surface of the wiring substrate.

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: A lighting device comprises a housing; a coupling member coupled to the housing; a reflector coupled between the housing and the coupling member; and a light source unit coupled to the coupling member to emit light toward the reflector, wherein the light source unit includes a first body, a second body and a spring provided between the first body and the second body, and wherein the spring provides an elastic force between the first body and the second body.

Abstract: A lighting fixture is provided that includes a flat elongated base having opposing longitudinal marginal slots and a pair of upright walls inboard of the longitudinal slots, and a pair of end caps engaging opposing ends of the elongated base. A gasket extends along a longitudinal surface of each of the upright walls. A lens extends between opposing end caps and conforms to the curved marginal edges of the end caps and edges and upright walls. The lens has two opposing longitudinal grooves that align with a pair of side rails extending between the end caps. Each side rail has a longitudinal cam projection extending into the associated lens groove. When the side rails are tightened against the lens, the cam projections tighten the lens into contact with the gasket to form a water tight seal between the lens and the base.

Abstract: A light source unit includes: an arc tube having a light-emitting portion; a secondary reflector covering part of the periphery of the light-emitting portion and being provided with a secondary reflecting surface for reflecting light emitted from the light-emitting portion; a primary reflector having a primary reflecting surface for reflecting the light emitted from the light-emitting portion and the light reflected from the secondary reflector; a first electrode; and a second electrode; wherein the second electrode is arranged at a position which causes an ionic wind to be induced by applying a voltage between the second electrode and the first electrode and causes air between the secondary reflecting surface and the light-emitting portion to flow, and either one of the first electrode or the second electrode is arranged between the arc tube and the secondary reflector.

Abstract: A cyclorama includes a generally enclosed housing having a normally horizontal housing axis and an open front. A reflector proximate the open front has an operative portion that has a substantially uniform cross-section along the housing axis. The reflector has a surface configuration and an LED array is arranged in relation to the reflector surface to provide a higher flux density directed toward a far end of a wall or surface to be illuminated and provide a lower flux density directed toward a direction of the near end of the surface to be illuminated, generating a transition flux density between the far and near ends of the surface to be illuminated. The LED array and/or the reflector have optical features for eliminating shadows in the projected light over the entire illuminated surface.

Abstract: The present invention discloses an LED light bar structure, which includes at least one LED and a circuit board. Each LED has two or an even number of pins. The circuit board has at least one receiving space and at least two recesses, in which the LED is disposed in the receiving space, and each of the pins is engaged in the recess. The present invention solves drawbacks of the LED shifting when being conventionally welded and the LED is difficult to replace.

Abstract: In one embodiment, a solid-state luminaire has a strip of high power LEDs, where each LED emits light into an optical coupler. Light from the optical coupler is then coupled into a light guide. Light coupled into the light guide is mixed and guided to an exit aperture of the light guide. An optical extractor proximate the exit aperture of the light guide redirects light outward, which is optionally redirected generally downward by a secondary reflector that extends outwardly along the length of the light guide. The secondary reflector may be configured to create a variety of light-emission patterns. The luminaire may be hung from a ceiling, in track lighting, used as a pendant or pedestal fixture, or in other applications.

Abstract: A variety of illumination devices are disclosed that are configured to manipulate light provided by one or more light-emitting elements (LEEs). In general, embodiments of the illumination devices feature one or more optical couplers that redirect illumination from the LEEs to a reflector which then directs the light into a range of angles. In some embodiments, the illumination device includes a second reflector that reflects at least some of the light from the first reflector. In certain embodiments, the illumination device includes a light guide that guides light from the collector to the first reflector. The components of the illumination device can be configured to provide illumination devices that can provide a variety of intensity distributions. Such illumination devices can be configured to provide light for particular lighting applications, including office lighting, task lighting, cabinet lighting, garage lighting, wall wash, stack lighting, and downlighting.

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: An LED light bar comprises a housing, a circuit board with a plurality of separated portions located on the housing, a plurality of LED package devices disposed on the circuit board and electrically connecting to the circuit board, and a plurality of power dispensers respectively electrically connecting to the separated portions of the circuit board. The plurality of LED package devices is divided into a plurality of groups respectively on the plurality of separated portions of the circuit board, wherein the plurality of LED package devices of each of the groups forms a closed loop. Each separated portion of the circuit board includes a metal layer on the housing, an insulating layer on the metal layer and a circuit layer on the insulating layer. Each group of the LED package devices is on a corresponding circuit layer.

Abstract: A light fixture includes a first raceway disposed at a first end of the light fixture, a second raceway disposed at a second end of the light fixture, and a detachable cover that is removably coupled to the first raceway and to the second raceway. A ballast and power input wiring is coupled to the detachable cover, and an elongated lamp electrically coupled to the ballast. The light fixture also includes a power input connector having a socket portion and a plug portion, one of the socket portion and the plug portion coupled to the detachable cover and electrically connected to the power input wiring, and the other of the socket portion and the plug portion connectable to a power supply line to provide electrical power to the light fixture from a power source.

Abstract: An optical semiconductor-based tube type lighting apparatus capable of enlarging light distribution to have improved assembly characteristics. The lighting apparatus includes an elongated light-transmitting tube, and a plurality of optical semiconductor modules arranged along a circumference of the light-transmitting tube and separated from each other in a cross-sectional view of the light-transmitting tube. Each of the optical semiconductor modules is placed on a point, which is not on a central axis line of light emitted from other optical semiconductor modules, so as not to face another optical semiconductor module at an opposite side thereof.

Abstract: A light emitting diode (LED) lighting fixture includes a base plate having a front side and a rear side. A plurality of lighting strips is mounted on the front side of the base plate. A reflector is mounted to each of the lighting strips and desirably comprises multi-faceted side walls extending away from the light strip. Driver circuitry and control circuitry are mounted to the base plate, and are electrically coupled to a power supply for powering and controlling the plurality of LEDs. Each of the lighting strips includes a plurality of linearly-arranged LEDs, and each of the light emitting diodes has a diode base and a light emitting portion. The multi-faceted side walls of the reflector cause light produced by the plurality of LEDs to be amplified and formed into a bath or wash of light.

Abstract: A tubular structure with an opening defined thereon and having an inner surface and an outer surface. The tubular structure being substantially circular in shape and is made of a highly thermal conductive material. A plurality of light sources mounted on the inner surface of the tubular structure. The inner surface is coated with a diffused white coating. Light emitted from the plurality of light sources is reflected from the inner surface before exiting the tubular structure from the opening. This structure ensures emitting a uniform diffused light and prevents non-uniform illumination when disposed in an imaging forming device.

Abstract: The invention relates to a lamp (1), especially a suspended lamp, comprising a housing (2) that is provided with a first light emitting area (4) with a first light influencing element (9) on one side thereof while being fitted with a second light emitting area (21) with a second light influencing element (22) on another side for direct illumination. In order to improve indirect illumination of the lamp, the second light influencing element (22) can be moved into at least two different positions (S1, S2, S3).

Abstract: A lamp 1 includes a semiconductor light-emitting element 12 and a circuit unit 40 housed in an envelope 2. Within an axially central section of an outer tube 30, a wavelength converter 90 that converts wavelengths of incident light is disposed. The semiconductor light-emitting element 12 is disposed in a region at a side of the wavelength converter 90 facing a base 60 and oriented to have the main emission direction away from the base 60. A light guide 80 is disposed between the wavelength converter 90 and the semiconductor light-emitting element 12 and guides emission light of the semiconductor light-emitting element 12 to the wavelength converter 90. At least one component of the circuit unit 40 is disposed in a region at a side of the wavelength converter 90 opposite the semiconductor light-emitting element 12.

Abstract: An apparatus and associated method for operating a portable light assembly. In accordance with some embodiments, a frame providing a bridge and defining a transport region and a deployment region is slidingly connected to a mast. An arm is further connected to the mast by a hinge while a light fixture is connected to the arm. In various embodiments, the light fixture is capable of transitioning from a deployed position where the mast engages the deployment region and a transport position where the mast and light fixture are disposed within the transport region.

Abstract: A lighting fixture includes a reflector reflecting light from a fluorescent lamp to a desired direction, and one or more lamp connectors connecting the reflector to rotatably and detachably coupling with the fluorescent lamp, wherein the reflector is adapted to selectively rotate with respect to an axis of the fluorescent lamp for reflecting light from the fluorescent lamp so as to change a light pattern of the fluorescent lamp towards an opening of the foldable housing. The foldable housing includes two side frames and a retention frame extended between the two side frames to retain a distance therebetween, wherein the side frames are pivotally coupled with the retention frame to fold between an unfolded position to retain the fluorescent lamp in longitudinal position and a folded position to form a compact size for storage and transportation.

Abstract: A lighting device comprises a housing; a coupling member coupled to the housing; a reflector coupled between the housing and the coupling member; and a light source unit coupled to the coupling member to emit light toward the reflector, wherein the light source unit includes a first body, a second body and a spring provided between the first body and the second body, and wherein the spring provides an elastic force between the first body and the second body.

Abstract: An LED lamp tube with improved sealing and cooling performance includes a plastic tube shell, an LED lamp strip, a metal casing and two end caps. The plastic tube shell is elongate and includes a light condensing structure and a light reflection structure integrally formed by extrusion and an installation chamber formed between the light condensing structure and the light reflection structure. The LED lamp strip is held in the installation chamber and at one side of the light reflection structure. The metal casing is coupled on the outer side of the light reflection structure. Each of the end caps is coupled on each of two ends of the plastic tube shell, thus can achieve IP67 waterproof and dustproof level, and also can resolve cooling problem of the lamp tube.

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: The object of the present invention is to achieve weight reduction of an illumination device and uniformization of luminance distribution. The illumination device (backlight unit) comprises a linear light source, a reflecting layer and an outlet layer. The reflecting layer and the outlet layer face each other via space. The linear light source is arranged at an end of the space. The outlet layer is formed as a semi-transmissive layer which transmits part of incident light while reflecting part of the incident light. The cross-sectional shape of the reflecting layer has an apex, which is concave in an illuminating direction, in a section from a position close to the linear light source to a central position of the reflecting layer and an inflection point in a section from the apex to a distal end of the reflecting layer.

Abstract: According to one embodiment, illumination apparatus including, first light source module which includes light-emitting module that emits light, light-emitting module having line shape, and first reflection member which includes first reflection surface that reflects light emitted from light-emitting module of first light source module for predetermined range, wherein first reflection surface has cross section that has zigzag line shape including plurality of line segments running along standard oval, which has major axis that forms predetermined angle with direction perpendicular to predetermined range, in direction perpendicular to longitudinal direction of light-emitting module of first light source module.

Abstract: A strobe device includes an electric discharge tube and a reflection member. The reflection member has an inner peripheral surface formed by a curved line in cross section orthogonal to a direction of the axis of the electric discharge tube so that a space therein expands toward an exit opening from an entrance opening, and two lines tangent to the inner peripheral surface at end points of the entrance opening of the reflection member intersect with each other at a point on a rear side of the axis of the electric discharge tube and on a front side of an exterior surface of a glass bulb that forms the electric discharge tube.

Abstract: In an embodiment, a recessed light fixture includes a structural reflector and two end caps that form a light fixture housing. A first, second and third optics areas are provided. At least one first light source type is mounted near the first optics area. A second light source type is mounted near the second optics area and the second light source type is mounted near the third optics areas, the second light source type having a light output level substantially lower than the light output level of the first light source type. A diffuser is configured to sealably mount to the light fixture housing so as to substantially seal an interior portion of the light fixture. In operation, the light fixture can be switch between an ambient mode and an examination mode while providing a cost effective and attractive design.

Abstract: An illumination module includes a longitudinal support member including a base portion and a pair of sidewalls extending from the base portion that together define a channel that extends in a longitudinal direction. A printed circuit board (PCB) on the base portion extends in the longitudinal direction within the channel. A plurality of light emitting diodes (LEDs) are on the PCB in a linear array. A reflective sheet is within and extends across the channel, and includes a plurality of holes that correspond with locations of the LEDs on the PCB, and the LEDs are at least partially within the holes. An optical film extends across the channel above the reflective sheet and defines an optical cavity between the reflective sheet and the optical film.

Abstract: A lighting fixture includes a reflector reflecting light from a fluorescent lamp to a desired direction, and one or more lamp connectors connecting the reflector to rotatably and detachably coupling with the fluorescent lamp, wherein the reflector is adapted to selectively rotate with respect to an axis of the fluorescent lamp for reflecting light from the fluorescent lamp so as to change a light pattern of the fluorescent lamp towards an opening of the foldable housing. The foldable housing includes two side frames and a retention frame extended between the two side frames to retain a distance therebetween, wherein the side frames are pivotally coupled with the retention frame to fold between an unfolded position to retain the fluorescent lamp in longitudinal position and a folded position to form a compact size for storage and transportation.

Abstract: In order to enable heat from luminous objects to be effectively radiated, and assembly to be simplified to facilitate downsizing and the like, a linear light irradiating device is configured such that a luminous object mounting board is contained in a bottom-equipped groove-like containing space in a body in a bending state of being elastically deformed, and also on the basis of an elastic restoring force of the board, a back surface of a luminous object mounting region in the board or vicinity of the back surface is pressed against and brought into close contact with a fore end surface of an intervening object that has thermal conductivity and is made to protrude from an inner circumferential surface of the containing space.

Abstract: Provided is a light fixture having a first elongate body defining a mounting surface. A light module is disposed adjacent the mounting surface and includes a module body and a plurality of light emitting devices disposed on the mounting body. The light emitting device defines an emitting axis about which light is emitted. The fixture further includes a first reflector member and a second reflector member disposed on opposed sides of the emitting axis for reflecting light emanated by the light emitting devices. The first reflector member and the second reflector member are pivotable to vary the angle at which light is emitted from the light fixture.

Abstract: A work light including an elongated housing having a handle portion carrying work light controls, and a light-emitting portion including a plurality of electrically interconnected light-emitting diodes (LEDs) mounted on a substrate mechanically and thermally coupled with a heat sink, wherein the plurality of LEDs include at least two independently controllable groups of LEDs. The work light further includes a power cord electrically extending therethrough for connecting multiple lights in series.

Abstract: A surface light source device includes: a light source; a diffusion member that diffuses light; and reflection means provided on a side opposite to the diffusion member with the light source interposed therebetween for reflecting light emitted from the light source toward the diffusion member, wherein the reflection means is formed by layering a plurality of optical components and the plurality of optical components are stopped by each other with stopper means.

Abstract: A lighting device may be provided that includes a housing, a coupling member coupled to the housing, a reflector coupled between the housing and the coupling member, and a light source unit coupled to the coupling member to emit light toward the reflector. A first portion of a first body of the light source unit may be coupled to the coupling member, and a second portion of the first body may include a light source module that includes a light to emit light toward the reflector.

Abstract: A luminous retrofitting door for use in a troffer-style fixture is provided. A door having a frame operative to be mounted in a troffer is provided. The door may retain one or more optical components including, for example, a LED module, a light guide array, a diffuser, and a reflector, that combine to emit light in a uniform manner from the troffer.

Abstract: A flat fluorescent lamp which includes: a long rectangular shaped light guiding panel, a light-emitting module, a light guiding body, a reflective layer, and at least one light-emitting diode. The light guiding body seamlessly connects between an end surface of the light guiding panel and the light-emitting module. The reflective layer is located exterior of the light guiding panel. A Coupling head is installed on the side of the light-emitting module that is away from the light guiding panel, and the coupling head is connected to the light-emitting module. Thereby, an energy efficient fluorescent lamp that can be thinner and installed on general lamp socket is provided.