A stage light with a defogging device includes a light head, in which a mounting plate for fixing a light source and a supporting plate for mounting optical lens are arranged. At a light outlet of the light head a light emitting lens is provided, a light source cavity is formed by the supporting plate, the mounting plate and a side wall of the light head. A blower is arranged in the light source cavity, which is configured to guide airflow into space between the supporting plate and the light emitting lens through an air guiding element. Hot airflow in the light source cavity is guided into the space between the supporting plate and the light emitting lens, so that the temperature of the space between the supporting plate and the light emitting lens is increased, thereby reducing a temperature difference in the light head to avoid water fog.

A light irradiation device includes: a lamp that has a lamp back surface on which a lamp back surface electrode is provided, and a lamp major surface which faces the lamp back surface and on which a lamp major surface electrode is provided, and that emits light from the lamp back surface; a housing forming an internal space in which the lamp is disposed, together with a vacuum window that transmits the light emitted by the lamp; and a heat sink that discharges heat from the lamp. The heat sink is thermally connected to the lamp major surface. The housing includes a suction pipe joint serving as an inlet for compressed air to be supplied to the internal space, and a discharge pipe joint serving as an outlet for the compressed air that has received the heat from the heat sink.

The present invention provides a finned heat-exchange system, comprising a heat dissipation chamber, a fin, an air guide element and a base, wherein the heat dissipation chamber is isolated from the outside, and both the fin and the air guide element are connected to the base; and the air guide element and the fin are in communication with the heat dissipation chamber through the base to dissipate heat from the inside of the heat dissipation chamber.

There are provided an apparatus for heat exchange by using a braided fabric woven from a thermally conductive wire material and a light emitting diode (LED) lighting device. The apparatus comprises a braided fabric (1) woven from a thermally conductive wire material, and a heat dissipating or absorbing object (2) is fixed with the braided fabric (1) by using methods such as welding, adhering with a thermally conductive adhesive and casting, so as to ensure that heat energy is effectively conducted between the heat dissipating or absorbing object (2) and the thermally conductive wire of the braided fabric (1), and heat is dissipated to air or absorbed from air by means of a heat dissipating surface of the thermally conductive wire of the braided fabric (1).

There are provided an apparatus for heat exchange by using a braided fabric woven from a thermally conductive wire material and a light emitting diode (LED) lighting device. The apparatus comprises a braided fabric (1) woven from a thermally conductive wire material, and a heat dissipating or absorbing object (2) is fixed with the braided fabric (1) by using methods such as welding, adhering with a thermally conductive adhesive and casting, so as to ensure that heat energy is effectively conducted between the heat dissipating or absorbing object (2) and the thermally conductive wire of the braided fabric (1), and heat is dissipated to air or absorbed from air by means of a heat dissipating surface of the thermally conductive wire of the braided fabric (1).

In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

A light conversion device according to one embodiment of the disclosure includes a light conversion section that is rotatable about an axis of rotation, a cooling section that cools the light conversion section, a housing that houses the light conversion section and the cooling section, and a partition member that is provided on the light conversion section, and partitions a space in the housing.

A phosphor wheel (13) includes: a first surface having a disk shape; a second surface opposite the first surface; a phosphor layer (13b) having an annular shape and being provided on the first surface; a plurality of openings (13c); and a plurality of first blade parts (33a). The plurality of openings (13c) are disposed radially inward of the annular-shaped phosphor layer (13b) and arrayed along a circumferential direction. The plurality of first blade parts (33a) are located respectively adjacent to the plurality of openings (13c) in the first surface and configured to blow air to a surface of the phosphor layer (13b).

There are provided an apparatus for heat exchange by using a braided fabric woven from a thermally conductive wire material and a light emitting diode (LED) lighting device. The apparatus comprises a braided fabric (1) woven from a thermally conductive wire material, and a heat dissipating or absorbing object (2) is fixed with the braided fabric (1) by using methods such as welding, adhering with a thermally conductive adhesive and casting, so as to ensure that heat energy is effectively conducted between the heat dissipating or absorbing object (2) and the thermally conductive wire of the braided fabric (1), and heat is dissipated to air or absorbed from air by means of a heat dissipating surface of the thermally conductive wire of the braided fabric (1).