Patent ID: 9372387
Filing Date: 2016-06-21
CPC Classification: G03B,H04N

Claim Text:
1. A laser projector comprising: a laser light source configured to emit a laser light beam modulated in accordance with image information; a scanner to drive the laser light along two axes in a horizontal direction and a vertical direction in order to produce a two-dimensional scan; a scanning mirror drive part to produce a drive signal of the scanner; a light source data conversion part to change an arrangement of the image information in the horizontal direction; and a timing generation part to synchronize the scanning mirror drive part with the light source data conversion part; wherein frames of the image information are divided into a first field, a second field, a third field and fourth field, and in the first field, laser scanning is started from a left most point in the horizontal direction and moves in a rightward direction, in the second field, laser scanning is started from a point that is equidistance between the left most point in the horizontal direction and a right most point in the horizontal direction and moves in the rightward direction in the horizontal direction, in the third field, laser scanning is started from the right most point in the horizontal direction and moves in a leftward direction, in the fourth field, laser scanning is started from the point that is equidistance between the left most point in the horizontal direction and the right most point in the horizontal direction and moves in the leftward direction and thereby one frame of the image information is scanned two-dimensionally; and wherein the laser light beam has an elliptical shape with a major axis in the vertical direction and a minor axis in the horizontal direction.