Patent ID: 8267525

Claim:
An adjusting system for a projector, the adjusting system comprising: a reference point projection unit storing a plurality of reference points to be projected on a screen to form a plurality of projection points; an infrared apparatus, wherein the infrared apparatus comprises a plurality of infrared devices mounted on a front surface of a body of the projector, the plurality of infrared devices emits infrared signals to the screen and form a plurality of light points on the screen, when a projection angle of the projector is 0 degrees, the plurality of light points overlap the plurality of projection points respectively; a micro controller unit (MCU); a graphic processing unit (GPU), wherein when the projection angle of the projector is a certain angle larger than 0 degrees, the MCU controls the GPU to make adjustment corresponding to the infrared devices which receive the reflected infrared signals, until the plurality of projection points overlap the plurality of light points respectively.