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Refractive beam steering device useful for autonomous vehicle lidar

A technology of equipment and actuators, applied in the direction of using re-radiation, re-radiation of electromagnetic waves, instruments, etc., can solve the problem of the availability of additional packaging space

Active Publication Date: 2020-09-22
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One challenge associated with previously proposed scanning LIDAR systems is that the scanning components require additional space while only limited packaging space is available on the vehicle

Method used

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  • Refractive beam steering device useful for autonomous vehicle lidar
  • Refractive beam steering device useful for autonomous vehicle lidar
  • Refractive beam steering device useful for autonomous vehicle lidar

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Embodiment Construction

[0031] figure 1 A vehicle 20 including a detection device 22 is schematically illustrated. One example for detection device 22 is to provide sensing or guidance information to a vehicle, engine or brake controller, such as an automatic vehicle controller. For purposes of discussion, detection device 22 is a LIDAR device that emits at least one beam of radiation 24 useful for detecting objects near vehicle 20 or in the path of vehicle 20 . In this example, beam of radiation 24 includes light directed at a selected angle relative to vehicle 20 .

[0032] Embodiments of the present invention provide additional beam steering and scanning capabilities while requiring lower power and occupying less space than other proposed arrangements. Embodiments of the present invention allow the desired level of beam control to be achieved using less power and occupying less space, making embodiments of the present invention well suited for autonomous vehicle LIDAR systems. In this example, ...

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Abstract

The present invention relates to refractive beam steering devices useful for autonomous vehicle LIDAR. An illustrative example apparatus (22) for redirecting radiation (24) includes an optical assembly (34) including a plurality of concave surfaces (36) on at least one side of the optical assembly (34) a plurality of radiation (24) sources respectively aligned with a plurality of concave surfaces (36); and at least one actuator (38) that selectively aligns the optical assembly (34) with respect to A plurality of radiation (24) sources are moved to selectively redirect respective radiation (24) beams through the plurality of concave surfaces (36).

Description

technical field [0001] The present invention relates to steering devices, and more particularly to refractive beam steering devices useful for autonomous vehicle LIDAR. Background technique [0002] Advances in electronics and technology have made it possible to incorporate various advanced features into autonomous vehicles. Various sensing technologies have been developed for detecting objects near the vehicle or in the path of the vehicle. Such systems are useful for example for park assist and cruise control adjustment features. [0003] More recently, autonomous vehicle features that allow for automatic or semi-autonomous vehicle control have become possible. For example, a cruise control system can be used in conjunction with LIDAR (Light Detection and Ranging) to detect an object or another vehicle in the vehicle's path. Depending on the approach speed, cruise control settings may automatically adjust to reduce the speed of the vehicle upon detection of another vehi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V8/10G01S17/931
CPCG01V8/10G01S17/42G01S7/4815G01S7/4817G01S17/931G02B26/0875
Inventor 刘友光姚国辉杨志庆
Owner APTIV TECH LTD