Patent ID: 11194237

Abstract:
The invention discloses a novel projector, comprising a sealed shell of electronic projector, an illumination system and a LED light source system, wherein the sealed shell is provided with an optical and internal circulation cooling assembly inside by area; the optical assembly comprises the projector working assembly. The invention is inside a sealed shell; the cold air far below normal temperature generated by semiconductor refrigeration piece takes away the heat on optical device, improving the heat dissipation efficiency. Simultaneously, because the cold air is inside a sealed shell, the optical device can be placed in a dust-free environment. The polarized light conversion prism converts the useless P light in conventional projector imagining into the useful S light, improving the light utilization, and increasing the brightness of projection at the same power. The LED light source is collimated by the collimating lens to meet PCS conversion requirement for polarized light converter.