Patent ID: 8368006

Claim:
A laser projector, comprising: a laser light source for radiating a laser light; a scanning section for scanning a projection plane with the laser light from the laser light source in a main scanning direction and a sub scanning direction perpendicular to the main scanning direction of the projection plane to form an image on the projection plane in such a way that a trajectory of the laser light used for scanning in the main scanning direction is arranged in the sub scanning direction; a scanning signal generating section for generating a pulse signal for the scanning section to scan the projection plane with the laser light into the main scanning direction; a drive section for driving the scanning section so that the laser light is scanned reciprocating in the main scanning direction in accordance with the pulse signal generated by the scanning signal generating section; and a period setting section for setting a basic period of the pulse signal capable of being generated according to resolution of a predetermined clock signal based on a period of a resonance frequency and a correction period quantity capable of being generated according to the resolution of the clock signal by accumulating period errors, each equal to a difference between the period of the resonance frequency and the basic period, wherein the scanning signal generating section generates a pulse signal having the basic period set by the period setting section, and a pulse signal of an addition result of the correction period quantity to the basic period every first cumulative number of an accumulation result of the period errors for producing the correction period quantity.