High density lidar scanning
AssigneeInnovusion Ireland Limited
InventorsJunwei BAO, Yimin LI
Life of this patent
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Abstract
The present disclosure describes a system and method for LiDAR scanning. The system includes a light source configured to generate one or more light beams; and a beam steering apparatus optically coupled to the light source. The beam steering apparatus includes a first rotatable mirror and a second rotatable mirror. The first rotatable mirror and the second rotatable mirror, when moving with respect to each other, are configured to: steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view; redirect one or more returning light pulses generated based on the illumination of the object; and a receiving optical system configured to receive the redirected returning light pulses.
Claims26
A light detection and ranging (LiDAR) scanning system, comprising:
- a light source configured to generate one or more light beams;
- a beam steering apparatus optically coupled to the light source, the beam steering apparatus comprising a first rotatable mirror and a second rotatable mirror,
- wherein an axis that is perpendicular to a reflective surface of the first rotatable mirror is configured to be at a first angle to a first rotating axis of the first rotatable mirror,
- wherein an axis that is perpendicular to a reflective surface of the second rotatable mirror is configured to be at a second angle to a second rotating axis of the second rotatable mirror, wherein both the first angle and the second angle are greater than zero degree and less than 90 degree, and
- wherein the first rotatable mirror and the second rotatable mirror, when moving with respect to each other, are configured to:
- steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view, and
- redirect one or more returning light pulses generated based on the illumination of the object;
- and
- a receiving optical system configured to receive the redirected returning light pulses.
A scanning system disposed with a vehicle, the system comprising:
- a first light detection and ranging (LiDAR) scanning system disposed approximately at a front-left corner of the vehicle;
- a second LiDAR scanning system disposed approximately at a front-right corner of the vehicle;
- a third LiDAR scanning system disposed approximately at a top portion of a front window-shield of the vehicle.
A light detection and ranging (LiDAR) scanning system, comprising:
- a light source configured to generate one or more light beams;
- a beam steering apparatus optically coupled to the light source, the beam steering apparatus comprising a first mirror and a rotatable mirror, wherein the first mirror is an oscillation mirror or a Galvo mirror,
- wherein an axis that is perpendicular to the surface of the first mirror is configured to be at a first angle to an oscillation axis of the first mirror,
- wherein an axis that is perpendicular to the surface of the rotatable mirror is configured to be at a second angle to a rotating axis of the second rotatable mirror, wherein both of the first angle and the second angle is greater than zero degree and less than 90 degree, and
- wherein the first mirror and the rotatable mirror, when moving with respect to each other, are configured to:
- steer the one or more light beams both vertically and horizontally to illuminate an object within a field-of-view, and
- redirect one or more returning light pulses generated based on the illumination of the object;
- and
- a receiving optical system configured to receive the redirected returning light pulses.
Dependencies are inferred from the claim text.