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LIDARS

  • US 20110040482A1
  • Filed: 04/17/2009
  • Published: 02/17/2011
  • Est. Priority Date: 04/18/2008
  • Status: Active Grant
First Claim
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1. A Light Detection and Ranging (LIDAR) apparatus comprising:

  • a light source means for emitting a light ray at plural angular intervals, and arranged such that the light ray is at least partially rotatable about a rotational centre;

    reflection means having a focal point, the reflection means positioned such that the rotational centre of the light ray is substantially located at the focal point and between a first angle and a second angle;

    reception means for receiving reflected light from one or more features in a path of the light ray; and

    analysis means for calculating a position at which one or more features are present based on an angle that the light ray was emitted and a time delay associated with received reflected light, wherein, when the light ray is emitted between the first and second angles, the analysis means takes into account reflection of the light ray from the reflection means.

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