Ultra-compact, highly stable projector modules

Abstract

The invention relates to a projector module. In particular, the invention relates to a projector module for the use in mobile devices, wherein a most compact, stable and reliable module structure with high module efficiency can be achieved. A projector module according to the invention comprises a beam path with a laser source, designed to emit coherent electromagnetic radiation with a divergent beam profile; a collection optics, designed to collimate or focus the divergent radiation emitted by the laser source convergently into an image plane; and a diffractive optical element, DOE, designed to generate a projection pattern from the radiation collimated or focused by the collection optics; wherein a deflector, designed to deflect the divergent radiation emitted by the laser source from a first direction into a second direction deviating from the first direction, is arranged in front of the collection optics or is designed as a collection optics.

Dependencies are inferred from the claim text.