Laser projector and method of scanning laser beam

摘要

A laser projector for scanning a laser beam output by a multimode laser light source and displaying an image includes a laser driving unit to drive the multimode laser light source so that two-dimensional output patterns of a shape of the laser beam are different in each display frame. The laser driving unit applies to the multimode laser light source a driving waveform pattern which has the same product of an output intensity and output time of a laser light source during a display time of one dot and which includes an output intensity and output time different in each display frame.

主权项

1. A method of scanning a laser beam of a laser projector for scanning a laser beam and displaying an image, comprising:
causing a laser light source which outputs a laser beam to have a first output mode with one peak in a cross-sectional intensity distribution of a laser beam, a second output mode with two peaks in a cross-sectional intensity distribution of a laser beam, and a third output mode with four peaks in a cross-sectional intensity distribution of a laser beam; and causing a laser beam to be scanned in combination of any of a scanning timing for outputting a laser beam by the first output mode, a scanning timing for outputting a laser beam by the second output mode, and a scanning timing for outputting a laser beam by the third output mode.