公开(公告)号：US20250044662A1

公开(公告)日：2025-02-06

申请号：US18614862

申请日：2024-03-25

Applicant: APPLE INC.

Inventor： Julien Sarry ,  April D. Schricker

IPC: G02F1/29 ,  G03B21/00 ,  G03B21/20

Abstract: Optoelectronic apparatus includes an array of emitters configured to emit respective beams of optical radiation. A steering module is mounted to intercept the emitted beams and includes an optical substrate and an active diffraction grating, which is fixed to the optical substrate and has a pitch that varies in response to an electrical signal applied thereto, so as to deflect the beams of optical radiation by a variable angle dependent on the pitch. An optical metasurface is disposed on the optical substrate and configured to collimate the beams of optical radiation so that the beams form a pattern of spots on a target scene. A controller is coupled to vary the electrical signal applied to the active diffractive grating so as to shift the pattern of spots across the target scene.