Provided is a cooling device including: a container that is sealed and accommodates a first heating element; a first radiator disposed outside the container; a first air blower that blows wind to the first radiator; and a heat dissipator that is disposed outside the container to receive the wind from the first air blower and dissipates heat of the first heating element.

A lighting device (23) irradiates a web under conveyance with light. The lighting device includes a light source (43), and an irradiation port (61) configured to open linearly in a widthwise direction of the web at an end portion facing the web. The irradiation port (61) is formed between first and second parallel portions (62b, 63b) where a first plate member (62) and a second plate member (63) parallelly face each other. The web under conveyance is irradiated with linear light. It is possible to provide a lighting device capable of irradiating only an inspection region of a sheet or a web with light.

Some embodiments are directed to a control system (140, 141, 142) for controlling a cooling fan used together with a motion detector. The controlling comprises controlling an activation and/or a rotation frequency of the cooling fan. The control system has a communication interface arranged for communication with the motion detector. The motion detector is configured to detect motion by emitting and receiving electromagnetic radiation and establishing frequency differences between the emitted and received electromagnetic radiation. The system operates the cooling fan at a regular rotation frequency and then, in response to obtaining a signal indicating that the motion detector is being used, adjusts the activation and/or the rotation frequency of the cooling fan, wherein said adjustment reduces an interference of the cooling fan with the frequency differences established by the motion detector.

Some embodiments are directed to a control system (140, 141, 142) for controlling a cooling fan used together with a motion detector. The controlling comprises controlling an activation and/or a rotation frequency of the cooling fan. The control system has a communication interface arranged for communication with the motion detector. The motion detector is configured to detect motion by emitting and receiving electromagnetic radiation and establishing frequency differences between the emitted and received electromagnetic radiation. The system operates the cooling fan at a regular rotation frequency and then, in response to obtaining a signal indicating that the motion detector is being used, adjusts the activation and/or the rotation frequency of the cooling fan, wherein said adjustment reduces an interference of the cooling fan with the frequency differences established by the motion detector.

According to aspects of the embodiments, an integrated light and heat arrangement of low profile light-emitting diode (LED) fixture to harness both the light and the heat generated by the LEDs is described. New system architectures and example form factors are provided for the development of new LED fixtures for integrative lighting and heating arrangement to increase their overall luminaire system efficiency. The integrative lighting and heating arrangement of the LED fixture in low profile design can minimize interference of harvesting the heat from LEDs with their light output. The heat which would otherwise be wasted from LEDs is harvested for the purpose of heating up some nearby body, such as a body of air, or a component, or a lens to accomplish some benefits, including, for example, reduction in overall energy uses for space heating, cooling, and lighting and associated cost, and melting snow and de-icing on outdoor LED fixtures for safety and security.

A lighting template usable in connection with standard theatrical lights is provided. The lighting template contains a LCD adapted to receive and reproduce video output thereon. The lighting template provides a body adapted to mount to a theatrical light so that the LCD is disposed within the focal plane thereof. Thereby a lighting designer may selectively control the video output so as to manipulate the projected light through the LCD, affordably creating animated projections from the theatrical light.

A cooling device includes a duct with one opened end and another opened end; a fan disposed inside the duct, the fan being configured to send air present inside the duct in an air-sending direction; a heat sink disposed outside the duct, the heat sink including a base part having an opposed surface opposed to a mouth of the another end of the duct, and heat-sink fins including a plurality of thin plates extending from the opposed surface along the air-sending direction; a heat source in contact with the base part; a heat pipe connected to the heat source or the heat sink; and heat-pipe fins disposed between the fan and the one end of the duct inside the duct, the heat-pipe fins including a plurality of thin plates extending from the heat pipe along the air-sending direction.

A cooling device includes a duct with one opened end and another opened end; a fan disposed inside the duct, the fan being configured to send air present inside the duct in an air-sending direction; a heat sink disposed outside the duct, the heat sink including a base part having an opposed surface opposed to a mouth of the another end of the duct, and heat-sink fins including a plurality of thin plates extending from the opposed surface along the air-sending direction; a heat source in contact with the base part; a heat pipe connected to the heat source or the heat sink; and heat-pipe fins disposed between the fan and the one end of the duct inside the duct, the heat-pipe fins including a plurality of thin plates extending from the heat pipe along the air-sending direction.

A lighting system includes a housing. The housing includes a light source portion, an electronic component portion, and a partition wall that is disposed between the light source portion and the electronic component portion. Further, the housing includes a channel that extends at an angle downwards from a portion of the partition wall to the light source portion. The channel provides a passageway from the electronic component portion to the light source portion of the housing. A grommet is disposed in the inclined channel to prevent external environmental elements, such as dust, water, etc., from entering the electronic component portion from the light source portion. Further, the lighting system includes a mounting bracket on which one or more electronic components associated with the lighting system are mounted. The mounting bracket is disposed within the electronic component portion and coupled to a surface of the electronic component portion.

A lighting system includes a housing. The housing includes a light source portion, an electronic component portion, and a partition wall that is disposed between the light source portion and the electronic component portion. Further, the housing includes a channel that extends at an angle downwards from a portion of the partition wall to the light source portion. The channel provides a passageway from the electronic component portion to the light source portion of the housing. A grommet is disposed in the inclined channel to prevent external environmental elements, such as dust, water, etc., from entering the electronic component portion from the light source portion. Further, the lighting system includes a mounting bracket on which one or more electronic components associated with the lighting system are mounted. The mounting bracket is disposed within the electronic component portion and coupled to a surface of the electronic component portion.