LeddarSteer™ - LeddarTech

Automotive-Grade, Solid-State Digital Beam Steering LiDAR Technology

LeddarSteer™ is a unique technology from LeddarTech that enables beam steering based on clever use of the polarization of light. LeddarSteer is available to LiDAR makers and Tier-1 manufacturers for the design and production of long-range, high-resolution LiDARs in a complete solid-state form–with no moving parts to wear out or to be affected by shocks and vibrations present in an automotive environment.

Download the Spec Sheet Digital Beam Steering FAQ

Product Highlights

1D or 2D beam steering with sub-milliradian precision
Extends range by reducing ambient light noise
Drastically reduces the optical design requirements, hence cost and size
Compatible with a broad range of wavelengths and architectures
Fast transition time down to 50 µs, can support high frame rates
Compact, reliable, 100% solid-state, automotive-grade compatible

About the Technology

LeddarSteer™ is a digital beam steering technology based on liquid crystal and polarization gratings which steers light to the desired angles rapidly, accurately, and reliably.

Low scattering losses
Operates in a broad range of temperatures
Down to 50 µs transition time, allowing fast frame rates
Clear apertures exceeding 5 cm
Non-mechanical steering over a wide FoV (up to 120° x 60°) with repeatable sub-milliradian (mrad) precision
Low power consumption

Digital Beam Steering FAQ

Configurable Beam Steering

LeddarSteer divides the FoV into discrete tiles that can be assembled to create the complete frame, with or without a region of interest. These FoV configurations can be changed on-the-fly, depending on the vehicle’s speed or environment, to enable multiple ADAS and AD use cases to be fulfilled from a single LiDAR design.

Key Benefits

LeddarSteer DBSD

Higher Range

Reduction of ambient light noise by receiver steering to a sub-segment of the FoV
Emitter steering enables higher collimation and peak power while maintaining eye safety and acceptable power consumption and thermal dissipation

Higher Resolution

Emitter beam steering and/or receiver detector / detector array steering to sub-segments of the FoV
Optimized optical system
Reduced size and complexity (smaller FoV of the receiver and/or emitter sub-system)
Reduces the number of laser and detector elements needed

Scalable

Component can be designed into next gen of existing LiDAR designs
Compatible with a broad range of wavelengths (NIR, SWIR, MWIR, LWIR)
Up to 120° addressable steering

Adaptable

Compatible with a wide variety of LiDAR architectures

Reliable

Solid-state technology (no moving parts)

Learn More about Digital Beam Steering

TECHNICAL NOTE

Liquid Crystals and Light Polarization for Beam Steering and Their Role in Developing ADAS and Autonomous Driving Solutions

This Technical Note aims to explain how liquid crystals and light polarization are used in autonomous driving and its applications. The document starts with an overview of terminologies and proceeds to explain the workings of liquid crystals and light polarization and how these two technologies combine to change the direction of light. Finally,the document details the usage of liquid crystals and light polarization within autonomous driving through beam steering and the advantages the system offers.

Download the Technical Note

Inquire about LeddarSteer for your LiDAR project

Contact our Experts

Have a question about Leddar technology or Leddar sensors? An expert from LeddarTech will be happy to discuss it with you.

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