News Article

Toshiba Expands Scope Of Its Solid-State LiDAR Solution To Address Transportation Infrastructure Monitoring


Toshiba Corporation has announced an updated version of its solid-state LiDAR solution. This new unit achieves the world's smallest volume, along with industry-leading resilience to wind and vibrations. It supports a maximum detection range of 200m, plus higher resolution than any other sensor on the market of similar size*. The upgraded performance of the new LiDAR unit will help to accelerate progression towards autonomous driving. It will also open up application opportunities for monitoring transportation infrastructure, in such areas as early detection of road subsidence or landslides, snow cover, or fallen objects on roads.

Current methods for monitoring transportation infrastructure rely on cameras, but their performance is degraded by low light levels and adverse weather conditions. Toshiba's upgraded solid-state LiDAR unit offers an alternative with superior performance, as it realizes clear, long-distance, robust 3D scanning and object detection across a wide variety of lighting and weather conditions. It is also extremely compact, measuring only one-third the size of the earlier prototype announced back in July 2020, and is the industry's smallest on record*.

“We have developed technologies essential for a compact, high-resolution, long-range solid-state LiDAR solution that is robust and simple to implement. Major demand for such a versatile solution is anticipated in both the autonomous driving and transportation infrastructure monitoring applications,” said Akihide Sai, Senior Research Scientist at Toshiba's Corporate Research & Development Center. “We look forward to deploying this next generation LiDAR unit in roadside installations.”

Pivotal to the compact LiDAR unit were the innovations that Toshiba made to its silicon photo-multiplier (SiPM) light-receiving chips to enhance the image resolution attained. Each SiPM consists of light-receiving cells controlled by transistors. The new chips have smaller transistor modules, and eliminate the buffer layers protecting the transistors. Instead, newly developed insulating trenches are placed between the transistors and the light-receiving cells. The potential issue of reduced light sensitivity due to use of smaller transistors has been solved via the addition of a high-withstand voltage section to raise the voltage input to the light-receiving cell (as described in Figure 1).

These innovations have reduced the size of the SiPM by 75% while elevating its light sensitivity by 50% compared with the July 2020 predecessor. More SiPMs can now be arrayed in the same package - thereby boosting the resolution to 1200 x 80 pixels (which is a 4x improvement).

Figure 1: Toshiba's new SiPM incorporates much smaller transistors, a high voltage input section, plus insulating trenches.

Toshiba has also ensured that the new LiDAR unit exhibits the durability that is essential for outdoor use in all weather conditions. A temperature compensation mechanism automatically adjusts the voltage input applied to the light-receiving cells, in order to mitigate the effect of external temperature changes. This means that heightened SiPM performance is maintained despite any ambient temperature fluctuations. In addition, by utilizing its expertise in high-density component mounting, Toshiba has reduced the overall size of the LiDAR projector and receiver to a 350cc volume (as shown in Figure 2).

Figure 2: (Left) Toshiba utilized high-density mounting know-how to build the LiDAR unit. (Right) Toshiba's LiDAR prototype is the world's smallest, 350cc in volume.

Toshiba will continue to contribute to safer transportation by promoting its advanced LiDAR technologies for autonomous driving and transportation infrastructure monitoring. Continued R&D activities will lead to further improvements in the detection range, image resolution and miniaturization of its LiDAR solutions - allowing new possibilities to be explored in robots, drones, and small security devices.

Figure 3: A demo of obstacle detection using Toshiba's new LiDAR in an outdoor and sunny daytime setting. The LiDAR successfully circled a cardboard placed at 50m ahead and accurately measured the distance. (Low speed frame rate (1fps). Fixed angle. Detection range: ~ 300m)

SAIC Motor Launches R Brand EV Line Powered By Luminar For Series Production
New Motion Detector With Distance Measurement
Melexis Announces Latest Triaxis Position Sensor Together With New PCB-less Packages
Ouster Achieves Major Automotive Grade Milestone
May Mobility Selects Ouster’s Lidar Sensors For Autonomous Shuttle Platform
OmniVision Announces Industry’s First 8 Megapixel Medical-Grade Image Sensors For Single-Use And Reusable Endoscopes
Torc Robotics Selects AWS As Preferred Cloud Provider For Self-driving Truck Fleet
Faraday Future Selects Velodyne As Exclusive Lidar Supplier For Flagship FF 91
New Investment In Light-powered Biosensor Accelerates The Availability Of High Quality – Low Cost Tests
TuSimple And Aeva Partner To Deploy 4D LiDAR For Autonomous Trucking
Paragraf Introduces A Graphene Hall Sensor
Mitsubishi Electric To Launch 80x60 Pixel Thermal Diode Infrared Sensor
New Wireless Torque Technology
RoboSense Teams Up With Webasto On Smart Roof Module With Integrated MEMS LiDAR
Continental And Iteris Collaborate To Explore Intelligent Infrastructure Technology
New Inertial Sensor For High-performance Motion Detection
LEM Launches New Leakage Current Sensor For Electric Vehicle Charging Stations
InnoSenTs Radar System For Measuring Filling Levels And Avoiding Collisions
China’s First Automotive-grade Solid-state LiDAR Production Line Launched
Online Event Globalizing The Power Of Digital Olfaction Through Standards & Protocols
Toshiba Expands Scope Of Its Solid-State LiDAR Solution To Address Transportation Infrastructure Monitoring
Plus Commits To Deploy Ouster’s Digital Lidar Sensors
HELLA Brings Latest Passenger Car 77GHz Radar Technology Into Series Production
Graphene Flagship’s Grapheal Raises €1.9 Million To Develop Biosensors And Fast Digital COVID Tests
Search the news archive

To close this popup you can press escape or click the close icon.
Register - Step 1

You may choose to subscribe to the Sensor Solutions Magazine, the Sensor Solutions Newsletter, or both. You may also request additional information if required, before submitting your application.

Please subscribe me to:


You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in:
Live Event