Optoelectronic device protected against detection by a collimated light beam

摘要

The invention concerns an optoelectronic device comprising at least a detector (10) with a light-sensitive surface (12) and optical means (14) focusing light on said surface, said surface (12) being made rough and diffusing at least part of the light it receives at a solid angle of diffusion (20) which is greater that the solid angle of aperture (22) of the optical means (14). The invention enables to protect the optoelectronic devices against detection by a laser beam.