Optical device (20) for emitting light, configured for the illumination of a scene (21) comprising N zones (26), said device (20) being characterized in that it comprises a source (22) of emission of light rays, a plurality of N optical deflectors (23) disposed in a pupil (24, 25) of the optical device (20), said optical deflectors (23) being configured to deflect light rays from the source (22) light towards the zones (26) of the scene (21), an optical module (27), interposed between the source (22) and the optical deflectors (23), said module (27) being configured to transmit light rays emitted by the light source (22) only to a subset of N1 optical deflectors (23), N1 being strictly less than N, for the illumination of a subset of the zones (26) of the scene (21). Figure 1
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