公开(公告)号：WO2021029969A1

公开(公告)日：2021-02-18

申请号：PCT/US2020/038860

申请日：2020-06-21

Applicant: APPLE INC.

Inventor： SUTTON, Andrew J. ,  UPTON, Robert S.

IPC: G02B6/122 ,  G01S17/89

Abstract: An optical device (20A, 20B, 100, 200, 800) includes a first array of emitters (28A, 28B) disposed on a semiconductor substrate (218) and configured to emit respective beams of optical radiation. A second array (36A, 36B, 224, 808) of micro-optics (34A, 34B, 226, 802) is positioned in alignment with the respective beams of the optical emitters and arranged to condition phases of the beams so that different ones of the beams are transmitted with different phase qualities

公开(公告)号：WO2019172983A1

公开(公告)日：2019-09-12

申请号：PCT/US2018/067436

申请日：2018-12-24

Applicant: APPLE INC.

Inventor： SUTTON, Andrew J. ,  SHPUNT, Alexander ,  GERSON, Yuval

IPC: G01S7/481

Abstract: An optical device (10) includes a laser light source (12) configured to emit a collimated beam (28) of light, and a scanning mirror (16), which is configured to reflect and scan the beam of light over a predefined angular range. The optical device further includes a volume holographic grating, VHG (14), which is positioned to receive and reflect the collimated beam emitted by the laser light source toward the scanning mirror by Bragg reflection at a predefined Bragg-angle, while transmitting the beam reflected from the scanning mirror over a part of the angular range that is outside a cone containing the Bragg-angle. Preferably, the optical device includes a detector (33), which is configured to receive and sense the light that is returned from a scene through the VHG (14) onto the scanning mirror (16), such that the returned light reflected by the scanning mirror (16) reflects from the VHG (14) by Bragg reflection toward the detector (33). Preferably, the optical device includes control circuitry (18), which is coupled to drive the laser light source (12) and the scanning mirror (16) and to receive a signal output by the detector (33) in response to the reflected light impinging on the detector (33), and which is configured to map the scene responsively to the signal. Preferably, the collimated beam (28) of light includes pulses of light, and the control circuitry (18) is configured to determine a distance to the target scene responsively to a time-of-flight of the pulses. An optical scanner projects and scans a beam from a light source across a one-or two-dimensional angular space. In a case where the optical scanner is used in a LiDAR-system, the beam is projected to a target scene, and the beam reflected from the scene is received by the scanner and forwarded to a radiation detector adjacent to the light source. A compact scanning device is provided with on-axis illumination and a low optical power loss.

公开(公告)号：WO2019050596A1

公开(公告)日：2019-03-14

申请号：PCT/US2018/038140

申请日：2018-06-19

Applicant: APPLE INC.

Inventor： SHPUNT, Alexander ,  SUTTON, Andrew J. ,  SOSKIND, Yakov G.

IPC: H01S5/183 ,  H01S5/14

CPC classification number: H01S5/141 ,  H01S3/0071 ,  H01S3/08009 ,  H01S3/08059 ,  H01S5/0215 ,  H01S5/02236 ,  H01S5/1032 ,  H01S5/105 ,  H01S5/183 ,  H01S5/18341 ,  H01S5/1838

Abstract: An optoelectronic device (20, 60, 80, 120, 140, 180, 200, 240, 280) includes a semiconductor substrate (24, 84, 144, 204, 244) and a vertical-cavity surface-emitting laser (VCSEL) (22, 82, 142, 202, 242) light source formed on the substrate and configured to emit coherent light at a predefined wavelength along a beam axis (26, 86, 146, 206, 246) perpendicular to a surface of the substrate. A block (28, 88, 148, 208, 248) of a transparent material is mounted on the surface of the substrate and forms, with the VCSEL, a resonant cavity at the predefined wavelength having an entrance face (36, 96, 156, 216, 256) that is aligned with the beam axis and an exit face (42, 104, 168, 228, 310) that is laterally displaced with respect to the entrance face along a cavity axis (40, 100, 160, 220, 260, 300) running parallel to the surface of the substrate.