Patent ID: 9229302
Filing Date: 2016-01-05
CPC Classification: G03B,H04N

Claim Text:
1. A heat dissipation assembly within a projection apparatus, the projection apparatus comprising a light source and a plurality of optical elements, wherein the light source generates a light beam, the plurality of optical elements transmit the light beam, and the heat dissipation assembly comprises: a case for receiving the optical elements; a heat dissipation element, being disposed on a surface of the case, the heat dissipation element comprising at least one first cooling fin and at least one second cooling fin; a first fan, being disposed out of the case; and a temperature controlling unit, electrically connecting to the first fan and comprising at least one temperature sensor for sensing a temperature around the at least one temperature sensor, and the temperature controlling unit enabling the first fan to generate an air flow in response to the temperature; wherein the surface of the case comprises an inner surface and an outer surface, at least one of the plurality of optical elements abuts against the inner surface, and heat generated during transmission of the light beam is accumulated in the at least one of the optical elements and then is dissipated through the heat dissipation element by the air flow generated by the first fan, wherein the at least one first cooling fins is disposed on the outer surfaces of the case, and the at least one second cooling fin and the at least one temperature sensor are disposed on the inner surface of the case.