PROJECTING DEVICE

A projecting device (10) is provided, including a light source and a controller (101). The light source includes a plurality of light-emitting parts (103∼105) each of which outputs a light beam of a color component different from each other (RGB). The controller (101) controls an output of the light source. In addition, the controller (101) pulse-drives the light-emitting part, having a lowest output among the light-emitting parts based on that the light beams are respectively driven with a predetermined output.