US 12,123,589 B1
Flood projector with microlens array
Yuval Tsur, Tel Aviv (IL); Refael Della Pergola, Jerusalem (IL); Roei Remez, Tel Aviv (IL); Assaf Avraham, Givatayim (IL); and Yazan Alnahhas, Mountain View, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by APPLE INC., Cupertino, CA (US)
Filed on May 22, 2023, as Appl. No. 18/321,025.
Int. Cl. F21V 5/00 (2018.01); F21V 3/04 (2018.01)
CPC F21V 5/007 (2013.01) [F21V 3/04 (2013.01); F21V 5/004 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optoelectronic apparatus, comprising:
a semiconductor substrate;
an array of emitters disposed on the semiconductor substrate and configured to emit beams of optical radiation having respective chief rays;
an optical diffuser mounted over the semiconductor substrate and configured to diffuse the beams, wherein the diffuser comprises an optical substrate and an optical metasurface disposed on the optical substrate; and
microlenses disposed between the semiconductor substrate and the optical diffuser in respective alignment with the emitters and configured to steer the beams at different, respective angles, which are selected so that at least some of the chief rays cross one another before passing through the diffuser.