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US 11,815,253 B2Granted
Light source device, cooling method, and manufacturing method for product
AssigneeCanon Kabushiki Kaisha
InventorsTakao Miura, Kazuyuki Kasumi
Life of this patent
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Abstract
An LED light source module includes a circuit board, solid-state light emitting elements arranged on the circuit board, a heatsink disposed in contact with the circuit board and having a channel formed inside, through which refrigerant flows, and a switching unit configured to switch a flow direction of refrigerant through the channel to an opposite direction.
Claims10
A device comprising:
- a circuit board;
- a plurality of light emitting elements (LEDs) disposed on the circuit board;
- a heatsink configured to cool the plurality of LEDs;
- and
- a switching unit configured to switch a flow direction of refrigerant through a channel in the heatsink between a first direction and a second direction.
2 more elements
Dependencies are inferred from the claim text.