Projecting device with energy recycling function

摘要

A projecting device with energy recycling function comprises a power system, a light source, an optical engine, a lens and an energy recycling module. The light source which receives power from the power system is for generating a beam of light. The optical engine which receives power from the power system is for guiding the light generated by the light source. The lens is for receiving the light guided by the optical engine to generate a projecting image, and the light forms a light path from the light source to the lens via the optical engine. The energy recycling module is for recycling at least one of heat energy and light energy generated by at least one of the light source and the optical. engine.