Aspects of the present disclosure relate to an adjustable light projector for active depth sensing and flood illumination. An example device includes a light projector that includes a light source to emit a light along a first direction and a diffractive element positioned in a path of the emitted light along the first direction. The diffractive element includes a diffractive optical element having a first refractive index and configured to project a distribution of focused light from the emitted light during a first mode. The diffractive element also includes a diffusion element having a second refractive index and configured to diffuse the emitted light during a second mode.