公开(公告)号：WO2019067057A1

公开(公告)日：2019-04-04

申请号：PCT/US2018/041179

申请日：2018-07-09

Applicant: APPLE INC.

Inventor： AXELROD, Noel ,  DELLA PERGOLA, Refael

IPC: G01S17/08 ,  G01S17/89 ,  G01S7/481 ,  G02B27/09 ,  G02B19/00

Abstract: An optical device (20) includes a light source (22), which is configured to emit a beam of light at a given wavelength, and at least one scanning mirror (26) configured to scan the beam across a target scene (24). Light collection optics include a collection optic (32) positioned to receive the light from the scene that is reflected from the at least one scanning mirror and to focus the collected light onto a focal plane (34), and a non-imaging optical element (21, 60) including a solid piece of a material that is transparent at the given wavelength, having a front surface (37, 62) positioned at the focal plane of the collection lens and a rear surface through which the guided light is emitted from the material in proximity to a sensor (38), so that the collected light is guided through the material and spread over the detection area of the sensor.