A laser lighting system has a first laser light source, a second laser light source and a light conversion element. The outputs from the first and second laser light sources are directed to the light conversion element, which generates wavelength-converted light output in response to excitation by laser light. The first and second laser light sources generate laser light of different wavelength having different absorption characteristics within the light conversion element, such that the range of depths within the light conversion element from which wavelength-converted light is generated is different. This difference in converted output can be used to create different optical effects so that beam steering or beam shaping can be performed.

A dual output downlight luminaire includes a housing that forms at least a first cavity. A partition extends from a portion of the housing and at least partially forms a boundary between the first cavity and an annular second cavity. A first light source emits a first light that is centered about an optical axis and propagates toward a first output aperture. An optic redirects the first light to form a first light beam that exits the luminaire through the first output aperture. A concentrated portion of the first light beam subtends an angle of 60 degrees or less and is centered about the optical axis. A plurality of second light sources, within the second cavity, emit a second light that exits the luminaire through an annular second output aperture. The first and second light sources are independently controllable with respect to each other.

A lamp comprises a plurality of luminous segments each at a different position within the lamp, wherein each of the luminous segments is arranged to emit illumination modulated to transmit a different respective code. A controller is configured to control the codes of the different luminous segments so as to have a predefined relationship therebetween (e.g. one code is N and the other is N+1).

A modular power manifold for a tube light may feature LED strips mounted in a support extrusion. A cover is provided as are two end caps with modular connectors which allow use in multiple settings. A power interface may also be provided to supply auxiliary power to additional loads.

According to an embodiment, there is provided a lighting apparatus including: a housing that has a first back cover having a parabolic shape and a recess opened below the first back cover; a first light emitting module that has a circuit board and a plurality of light emitting diodes arranged on the circuit board; a heat radiation body that is disposed in one region of the first back cover and has a first heat radiation portion in which the circuit board is disposed and a first reflection portion which extends from the first heat radiation portion along an contour line of an inner sphere surface of the first back cover; a transparent sheet that is disposed in an oblique shape between a high point of the recess of the first back cover and the heat radiation body; a first reflection sheet that is disposed on the heat radiation body and reflects a first side light emitted from the plurality of light emitting diodes to the transparent sheet; and a second reflection sheet that is disposed on an inner surface of the first back cover and reflects a main light emitted from the plurality of light emitting diodes to the transparent sheet, in which the first reflection sheet includes a plurality of reflection surfaces.

Aspects of the present application relate to a bypass switch for a lamp, such as a surgical or diagnostic lamp. When activated, the bypass switch may act to allow electric power to bypass elements of a control board so that the electric power is provided to the plurality of lamp elements.

A light source apparatus and a lighting device are provided. The light source apparatus includes a light source assembly, a power source assembly, a first end cap, and a second end cap. The light source assembly includes a light source part and a light diffuser. An interior of the light diffuser includes a first receiving space which extends along a lengthwise direction of the light diffuser and penetrates the light diffuser. The light source part is mounted in the first receiving space along a lengthwise direction of the light diffuser. The power source assembly includes a power source part and a power source cover. An interior of the power source cover includes a second receiving space which extends along a lengthwise direction of the power source cover and penetrates the power source cover. The power source part is mounted in the second receiving space.

Disclosed embodiments relate to a combination axial fan, LED lighting system and electric blue killer. The disclosed systems may include a housing forming an air chamber and an axial fan. The fan may include a fan cavity having an air diversion mechanism to direct air from the fan cavity toward the lighting, fan and electric bug killing components. The inventions include an airflow surface to direct air existing the fan cavity along an LED light fixture. The LED light fixture emits a blue or light blue light which attracts bugs. Moreover, disclosed embodiments include one or more electric bug killing devices to kill any bugs as air flows through the air chamber. The present invention may also include grow light fixture in the housing.

A combination flash light and work light. The device can also be provided with a USB receptacle port for electrically connecting a cable to recharge the internal battery or using the internal battery to charge another electronic device. A plurality of light array panels can be pivotally secured to the main light unit. The main light head can also pivot with respect to the rest of housing where the electrical circuits and components are housed. A relatively large or wide base can be provided at a bottom end to allow the device to be freestanding. A magnet and/or hook can be provided at the base to permit the device to be hung to an object or secured to a metallic surface. One or more, and preferably all, of the light bodies housing the light array panels can also be provided with solar panels/solar cells that can be directly connected to a rechargeable battery of the combination light for aiding in recharging such battery.

A light emitting device includes a plurality of oblong flexible substrates, each flexible substrate comprising a sheet-shaped base body and a wiring pattern formed on one face of the base body, and each flexible substrate having a plurality of light emitting sections disposed thereon; a plurality of a reflective layers, each reflective layer being disposed at a periphery of a respective light emitting section above a respective flexible substrate; an insulating reflective sheet made of a light reflecting resin, the reflective sheet having a plurality of through holes located such that the light emitting sections and at least a portion of the reflective layers are exposed via the through holes; and a plurality of adhesive members, each adhesive member adhering a respective flexible substrate to the reflective sheet in regions where the reflective layer is not formed.