公开(公告)号：WO2018044380A1

公开(公告)日：2018-03-08

申请号：PCT/US2017/039163

申请日：2017-06-25

Applicant: APPLE INC.

Inventor： BILLS, Richard E ,  SUTTON, Andrew J ,  NICLASS, Cristiano L ,  REZK, Mina A

IPC: G01S7/481 ,  G01S17/42 ,  G01S17/10 ,  H01S5/42 ,  G02F1/29

CPC classification number: H01S5/0071 ,  G01S7/4815 ,  G01S7/4817 ,  G01S17/10 ,  G01S17/42 ,  G02B26/0816 ,  G02B26/0891 ,  G02F1/292 ,  H01S5/042 ,  H01S5/423

Abstract: An optical apparatus (18, 39, 53, 57, 64, 66, 72) includes an array (20) of lasers (22), which are arranged in a grid pattern having a predefined spatial pitch and are configured to emit respective beams of pulses of optical radiation. Projection optics (27) having a selected focal length project the beams toward a target (28) with an angular pitch between the beams defined by the spatial pitch and the focal length. A scanner (48, 55, 58, 67, 81) scans the projected beams over a range of scan angles that is less than twice the angular pitch. Control circuitry (36) drives the lasers and the scanner so that the pulses cover the target with a resolution finer than the angular pitch. A receiver (32) receives and measures a time of flight of the pulses reflected from the target.

Abstract translation: 光学装置（18,39,53,57,64,66,72）包括激光器（22）的阵列（20），激光器（22）的阵列（20）布置成具有预定义的空间节距 并且被配置为发射光辐射的相应的脉冲束。 具有选定焦距的投影光学器件（27）以由空间间距和焦距限定的光束之间的角间距将光束投射向目标（28）。 扫描仪（48,55,58,67,81）在小于角间距两倍的扫描角度范围内扫描投影光束。 控制电路（36）驱动激光器和扫描器，使得脉冲以比角间距更精细的分辨率覆盖目标。 接收器（32）接收并测量从目标反射的脉冲的飞行时间。