| 摘要 |
An optical scanning device includes a light source which radiates light of intensity corresponding to an electric current supplied to the light source, an optical scanning part which is capable of scanning the light radiated from the light source in the predetermined direction, and a light source drive part which supplies a bias current of a predetermined current value to the light source and sequentially supplies an electric current corresponding to an image signal to the light source. The light source drive part stops or reduces the supply of the bias current to the light source during at least a predetermined period of an invalid scanning period where an image display is not performed.
|
