US 2021/0199779 A1 · Rotatable Mirror Device

Abstract

The present disclosure relates to systems and devices having a rotatable mirror assembly. An example system includes a housing and a rotatable mirror assembly. The rotatable mirror assembly includes a plurality of reflective surfaces, a shaft defining a rotational axis, and a mirror body coupling the plurality of reflective surfaces to the shaft. The mirror body includes a plurality of flexible support members. The rotatable mirror assembly also includes a coupling bracket configured to removably couple the rotatable mirror assembly to the housing. The system also includes a transmitter configured to emit emission light into an environment of the system after interacting with at least one reflective surface of the plurality of reflective surfaces. The system additionally includes a receiver configured to detect return light from the environment after interacting with the at least one reflective surface of the plurality of reflective surfaces.

Claims20

Dependent claims

A light detection and ranging (lidar) device, comprising:

a housing;
a mirror assembly disposed within the housing, wherein the mirror assembly comprises:
a shaft, wherein the shaft has a first end and a second end opposite the first end, and wherein the shaft defines a rotational axis of the mirror assembly;
a bearing, having an inner race and an outer race, wherein the inner race is coupled to the shaft proximate the first end;
at least one magnet disposed proximate to the second end of the shaft;
and
a plurality of reflective surfaces arranged about the rotational axis, wherein each reflective surface is defined by a reflective material;
a motor comprising a stator configured to interact with the at least one magnet to rotate the mirror assembly about the rotational axis;
a transmitter configured to emit emission light into an environment of the lidar device via the mirror assembly;
and
a receiver configured to detect return light that is received from the environment via the mirror assembly.

8 more elements

Dependencies are inferred from the claim text.

Rotatable Mirror Device

Life of this patent

Rotatable Mirror Device

Life of this patent

Abstract

Claims20