An optoelectronic device includes a semiconductor substrate and a monolithic array of light-emitting elements formed on the substrate. The light-emitting elements include a first plurality of first emitters, configured to emit respective first beams of light with a first angular divergence, at respective first positions in the array, and a second plurality of second emitters, configured to emit respective second beams of light with a second angular divergence that is at least 50% greater than the first angular divergence, at respective second positions in the array.