A lighting device may be provided that includes: a heat sink which includes a top surface and a member which has a side and is disposed on the top surface; a light source which includes a substrate disposed on the side of the member and light emitting devices disposed on the substrate, and has a reference point; and a cover which is coupled to the heat sink and includes an upper portion and a lower portion, which are divided by an imaginary plane passing through the reference point and being parallel with the top surface of the heat sink, wherein a distance from the reference point of the light source to the upper portion of the cover is larger than a distance from the reference point of the light source to the lower portion of the cover.

The present invention relates to a lamp capable of isolating heat source, which comprises a lamp head and a lamp body. The lamp head includes a driver. The lamp body includes a plurality of light-emitting members. The lamp head and the lamp body are spaced by a distance. The driver and the plurality of light-emitting members are connected electrically. A gap is located between the driver and the plurality of light-emitting members according to the present invention. By taking advantage of air being thermally insulating, the thermal conduction between the driver and the plurality of light-emitting members may be blocked. Then the driver will be free from the influence of the heat generated by the plurality of light-emitting members and its operating temperature may be kept normal. Thereby, the lifetime of the lamp may be extended.

A luminaire can comprise a central opening through which cooling air flows. A lens can extend circumferentially about the central opening. A frame can extend circumferentially about the lens. Cooling air can further flow in a gap between the lens and the frame. Light emitting diodes can emit light towards the lens, and the light can pass through the lens. The frame can provide the luminaire with a disk form, or another appropriate geometry.

A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

An integrated ceiling device includes integrated ceiling device including an electronic device housing, a heat dissipating structure, a light source, and a reflection/refraction assembly. An air gap is defined between the electronics housing and other components allowing ambient air to flow therethrough for cooling.

A luminaire includes a core made up of a first material and an LED lighting arrangement mounted to the core. The luminaire further includes a housing made up of a second material. The second material is different from the first material. The housing including a recess in which the core is received. The housing further includes a finned part.

A heat sink for a luminaire includes a central portion having a top surface and a bottom surface. The bottom surface is adapted to receive a lighting arrangement. The heat sink further includes a plurality of arms configured to dissipate heat generated by the lighting arrangement. The plurality of arms extend radially outward from the central portion. Each one of the plurality of arms is substantially arcuate between a proximal end and a distal end.

A light bulb comprising has a substrate having a light emitting member provided thereon and a main body in which the substrate is positioned. The main body comprises a heat sink, a power supply, electrical contact members electrically connecting the substrate to the power supply and electrical leads extending from the power supply to the electrical contact members. The electrical leads extend through the heat sink.

In various embodiments, a light emitting diode (LED) lamp is provided. The LED lamp may include a base; a first housing having a first end and a second end, the first end secured to the base; a second housing having at least in part a partially conical shape, an end of the second housing having a smaller diameter secured to the second end of the first housing; at least one LED secured within the second; driver circuitry secured within the LED flood lamp between the end of the base and the at least one LED; a reflector having a partially conical shape; and a diffuser element secured to at least one of a wider end of the reflector or the end of the second housing having the larger diameter. In some embodiments, the first or second housing may include one or more vents.