An illumination device includes a first heat source, a second heat source, a third heat source, a first porous heat dissipation element, a second porous heat dissipation element, a third porous heat dissipation element, a first guide pipe, and a second guide pipe. The first porous heat dissipation element is connected to the first heat source, the second porous heat dissipation element is connected to the second heat source, and the third porous heat dissipation element is connected to the third heat source. The first guide pipe is connected to the first porous heat dissipation element and the third porous heat dissipation element, and the second guide pipe is connected to the second porous heat dissipation element and the third porous heat dissipation element. The disclosure also provides a projection device with the aforementioned illumination device.

A light includes a body, a front housing secured to a front end of the body, a translating retainer rotatably engaged with the front housing, a slip ring positioned around the front housing and between the translating member and the front end of the body, a compressible ring positioned around the front housing and between the slip ring and the front end of the body, a lens mounted to the front housing, an electronic assembly, and a light emitting element in electrical communication with the electronic assembly and positioned within the lens. Rotation of the translating retainer in a first direction causes the translating retainer to drive the slip ring toward the front end of the body, compressing the compressible ring and causing the compressible ring to bulge outward to contact, and removably engage, an inner wall of a pipe or conduit that the light is positioned in.

A light panel for a luminaire includes a frame, a lamp assembly carried by the frame, a dissipater heat sink carried by the frame, and a heat transfer line that thermally couples the lamp assembly to the dissipater heat sink. The heat transfer line transfers heat generated by the lamp assembly, for example by a light element of the lamp assembly, to the dissipater heat sink by conduction. The dissipater heat sink is exposed to an exterior side of the frame such that heat from the lamp assembly is dissipated to the exterior side of the frame by conduction through the heat transfer line and the dissipater heat sink. The light panel may form a door for a housing of a luminaire, which may be easily retrofitted to the housing.

An LED illumination apparatus includes a first lighting module, a second lighting module, a lamp cup, a heat pipe, and a plurality of heat dissipation fins. The first and second lighting modules are connected with each other and emit light in opposite directions, in addition being received by the lamp cup. The lamp cup includes two reflecting surfaces arranged in symmetrical mirror fashion. The light emitting from the first and second lighting modules are directed to respective reflecting surfaces and reflected toward a same direction by the reflecting surfaces. The heat pipe is disposed in between the first and second lighting modules. The heat dissipation fins are fitted over the heat pipe. The heat generated by lighting modules would transmit to the heat pipe and be guided to the heat dissipation fins in order to accelerate cooling.

A projector includes a case, a system fan located in the case, a lamp securing module and a lamp. The lamp securing module includes a lamp holder and a lampshade integrated with the lamp holder. A plurality of heat conduction portions is located on the lampshade to be adhered to the lamp to guide the heat generated by the lamp to the lampshade, so that the system fan dissipates the heat from the lampshade. The disclosure further offers a heat dissipating method for the projector.

An LED illumination apparatus includes a first lighting module, a second lighting module, a lamp cup, a heat pipe, and a plurality of heat dissipation fins. The first and second lighting modules are connected with each other and emit light in opposite directions, in addition being received by the lamp cup. The lamp cup includes two reflecting surfaces arranged in symmetrical mirror fashion. The light emitting from the first and second lighting modules are directed to respective reflecting surfaces and reflected toward a same direction by the reflecting surfaces. The heat pipe is disposed in between the first and second lighting modules. The heat dissipation fins are fitted over the heat pipe. The heat generated by lighting modules would transmit to the heat pipe and be guided to the heat dissipation fins in order to accelerate cooling.

A projector includes a case, a system fan located in the case, a lamp securing module and a lamp. The lamp securing module includes a lamp holder and a lampshade integrated with the lamp holder. A plurality of heat conduction portions is located on the lampshade to be adhered to the lamp to guide the heat generated by the lamp to the lampshade, so that the system fan dissipates the heat from the lampshade. The disclosure further offers a heat dissipating method for the projector.

A heat-sink device intended for at least one electronic component (12), includes: a heat-sink; a substrate (11) for the at least one electronic component (12), said substrate covering the heat-sink; and thermal coupling provided between the substrate and the heat-sink and made from a material different from that of the heat-sink. The heat-sink comprises of a set of independent fins (10), and the thermal-coupling (13) is made from a heat-conductive polymer material and also serve as mechanical coupling between the substrate (11) and the fins (10).

A light fixture including a light source and heat pipes that are connected to an array of fins which cool the light source. The light fixture is configured such that the thermal mass is minimised local to the light source. The heat pipes are arranged so that they are aligned with the light emitting areas of the light source. The heat pipes and fins form a structure which supports the light source.

A light source device includes: a first light emitting element; a second light emitting element; and a heat sink configured to dissipate heat of the first light emitting element and heat of the second light emitting element. The heat sink includes: a first heat dissipation portion that is disposed on a flow path of a fluid, the first heat dissipation portion being configured to radiate the heat of the first light emitting element and the heat of the second light emitting element to the fluid; and a second heat dissipation portion that is disposed on the flow path, the second heat dissipation portion being configured to radiate the heat of the second light emitting element to the fluid.