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Light Detection and Ranging (LIDAR) Device with an Off-Axis Receiver

  • US 20180188359A1
  • Filed: 12/31/2016
  • Published: 07/05/2018
  • Est. Priority Date: 12/31/2016
  • Status: Active Grant
First Claim
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1. A light detection and ranging (LIDAR) device comprising:

  • a light source that emits light having a wavelength within a wavelength range;

    a transmit lens that directs the emitted light to define a field-of-view (FOV) of the LIDAR device, wherein the emitted light illuminates a region of an environment within the FOV defined by the transmit lens;

    a receive lens that receives light from the environment, wherein the receive lens focuses at least a portion of the received light along a predefined optical path;

    an array of light detectors positioned along the predefined optical path to intercept and detect focused light from the receive lens;

    an offset light detector positioned outside the predefined optical path to intercept and detect light propagating toward the LIDAR device; and

    a controller that;

    (i) collects sensor data obtained using the array of light detectors, and (ii) based on at least output from the offset light detector, determines whether the collected sensor data includes sensor data associated with another light source different than the light source of the LIDAR device.

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