Patent ID: 7516894

Claim:
A laser display apparatus for displaying an image by scanning laser light onto a screen, the apparatus comprising: a laser emitting the laser light; an optical scanning unit scanning the laser light emitted by the laser and providing a two-dimensional image onto the screen; a laser light intensity adjusting unit limiting an excessive intensity of the laser light scanned onto the screen; and a projection lens unit disposed between the laser and the screen, wherein the projection lens unit enlarges and projects the laser light onto the screen; wherein the laser light intensity adjusting unit comprises an optical limiter disposed between the laser and the optical scanning unit, wherein the optical limiter nonlinearly increases an intensity of exit laser light propagating toward the optical scanning unit according to an increasing intensity of incident laser light emitted by the laser, limits the intensity of the exit laser light when the intensity of the incident laser light exceeds a predetermined value so that exit laser light having an intensity not exceeding the predetermined value is incident on the optical scanning unit.