公开(公告)号：US12188763B2

公开(公告)日：2025-01-07

申请号：US17644974

申请日：2021-12-17

Applicant: Lumentum Operations LLC

Inventor： John Michael Miller ,  Vincent V. Wong ,  Lei Yang

IPC: G01B11/25 ,  G02B27/30 ,  H01S5/42

Abstract: A dot projector may include a vertical-cavity surface-emitting laser (VCSEL). The dot projector may include one or more collimating elements to collimate light emitted by the VCSEL. An effective focal length of the one or more collimating elements may be larger than an optics length of the dot projector. The dot projector may include an optical element including a periodic optical phase function to replicate the light after collimation by the one or more collimating elements and an aberration-correcting phase function to correct spot aberrations in a dot pattern resulting from the tiling or splitting of the light.