The disclosure relates to stage lighting fixtures, and in particular to a stage lighting fixture thermal system capable of dynamically adjusting air flow delivery. This stage lighting fixture thermal system comprises a light source and a heat dissipation chamber. Light source is arranged inside heat dissipation chamber. An illuminating side of light source faces a light outlet on a top part of heat dissipation chamber. The stage lighting fixture thermal system further comprises at least one first air supply mechanism communicated with heat dissipation chamber. The first air supply mechanism is dynamically arranged on heat dissipation chamber. The stage lighting fixture thermal system has a simple structure and is convenient to use. It may adjust, according to position change of light source, the air supply mechanism to an optimal position for heat dissipation to prolong life of the light source.

To provide a vehicular headlight which, by using a fan, can efficiently cool a light source through a heat sink and also efficiently cool a light source drive circuit, a vehicular headlight (1) according to the present invention includes a lamp housing (10), a lamp lens (11), a lamp unit (2), a fan (3), and a light source drive circuit (4). The lamp unit (2) includes a light source (20), a heat sink (5), and a light control member (6). An outlet side of the fan (3) faces the heat sink (5), and an intake side of the fan (3) faces the light source drive circuit (4). Consequently, by using the fan (3), the present invention can efficiently cool the light source (20) through the heat sink (5) and also efficiently cool the light source drive circuit (4).

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.

Provided is a cooking appliance including: a main body including a cooking chamber, a door positioned at a front of the main body to open and close the cooking chamber, a camera disposed toward the cooking chamber to obtain a photograph an inside of the cooking chamber, a camera cooling fan configured to intake external air to cool the camera, and an air guide configured to form a flow path such that external air is provided toward the camera by the camera cooling fan. The air guide guides air passed through the camera to be discharged toward a front of the camera cooling fan.

A cooling device for cooling a light source located in an automotive luminous device. This cooling device includes a heat sink intended to be in thermal contact with the light source, a plurality of fins in direct thermal contact with the heat sink, a plurality of pins in direct thermal contact with the heat sink and a fan. The fan is arranged to make a fluid flow from an inlet of the cooling device to an outlet to the cooling device, so that the plurality of fins are nearer the inlet than the plurality of pins.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.

A lighting assembly includes a lighting tower. The lighting tower includes a plurality of layers of lighting elements, where each layer of lighting elements is configured to provide a different angle of emitted light onto a parabolic reflector with respect to light emitted from another layer of lighting elements onto the parabolic reflector when activated.

A combination (110) of a light bulb (111) and a bulb holder (112) in which the light bulb (111) comprises a plurality of light emitting diodes (77) mounted on a mounting platform (76) located within a globe (74) of the light bulb (111). The mounting platform (76) is mounted on and in heat conducting engagement with a heat transfer member (75) which is located within and in heat conducting engagement with an Edison screw threaded first coupling element (73) also of heat conductive material, so that heat generated by the light emitting diodes (77) is conducted through the mounting platform (76), the heat transfer member (75) and the first coupling element (73) into the light bulb holder (112). The light bulb holder (112) comprises a body member (93) of heat conductive material having an internally Edison screw threaded socket (95) engageable with the first coupling element (73) of the light bulb (111). A plurality of heat exchange fins (97) extending outwardly from the body member (93) sink heat conducted from the light bulb (111) into the light bulb holder (112). Concentric contact elements (115,116) located at the end of the first coupling elements (73) are engageable with corresponding concentric first and second contact elements (121,122) located in the socket (95) for providing an electrical power supply to the light emitting diodes (77).

A light emitting apparatus comprises: an LED-based light source; a spherical, spheroidal, or toroidal diffuser generating a Lambertian light intensity distribution output at any point on the diffuser surface responsive to illumination inside the diffuser; and a base including a base connector. The LED based light source, the diffuser, and the base are secured together as a unitary LED lamp installable in a lighting socket by connecting the base connector with the lighting socket. The diffuser is shaped and arranged respective to the LED based light source in the unitary LED lamp to conform with an isolux surface of the LED based light source. The base is operatively connected with the LED based light source in the unitary LED lamp to electrically power the LED based light source using electrical power received at the base connector.

Described is dynamic control of the temperature of the envelope of an HID lamp in order to stabilize the output color temperature of the lamp. As the lamp power is changed, or environmental factors alter the lamp envelope temperature, the system senses these changes and adjusts the lamp cooling systems so as to move the lamp envelope temperature back to the desired point.