DYNAMIC LIGHT PATTERN GENERATOR

A dynamic light pattern generator includes a laser light source to emit laser light, a mask rotatably supported about an optical axis of the laser light source and capable of absorbing and transmitting the laser light emitted from the laser light source, and a diffractive optical element including, on a same plane, a plurality of diffractive optical element components to change a phase of the laser light transmitted through the mask and individually emit diffracted light beams with phase distributions for generating partial light patterns different from each other.