STMicroelectronics has released its third-generation laser-ranging sensor based on its industry-leading FlightSense™ technology. The VL53L1X is a state-of-the-art, Time-of-Flight (ToF), laser-ranging sensor, enhancing the ST FlightSense™ product family. It is the fastest miniature ToF sensor on the market with accurate and fast ranging.
The VL53L1X sensor benefits from new patented silicon- and module-level architectures, adding for the first time, optical lenses to the module. This combination boosts core performance, extending the ranging distance performance up to 4 meters, while introducing many new features including flexible Field of View selection, cover-glass crosstalk immunity at long distance, and programmable multi-zone scanning. These advances deliver new levels of sensor performance to robotics, user detection, drones, IoT like vending machines and smart shelves, and wearable applications.
With a compact form factor of 4.9 x 2.5 x 1.56mm, the sensor module integrates a new lens system, a 940nm Vertical Cavity Surface-Emitting Laser (VCSEL) invisible-light source, a processing core, and a Single-Photon Avalanche Diode (SPAD) photon detector. The addition of the optical lens system increases the photon detection rate to boost the module’s ranging performance. The embedded microcontroller manages the complete ranging function and runs the innovative digital algorithms to minimize host-processing overhead and system power consumption, maximizing battery life for mobile applications.
"ST has already shipped hundreds of millions of Time-of-Flight sensors, which have been designed by OEMs into over 70 smartphone models as well as many other consumer devices," said Eric Aussedat, General Manager of ST’s Imaging Division. "The third-generation FlightSense product uses its improved performance to support new applications, including human-presence detection, while continuing to improve sensor performance for existing use cases."
The new VL53L1X performs a full measurement operation in as little as 5ms for high speed applications. For autofocus applications in smartphones, the sensor detects objects twice as fast as earlier-generation devices. Moreover, the VL53L1X has doubled the maximum ranging distance of the sensors, ensuring it is well matched to the hyper-focal distance of widely used 21-megapixel camera optics.
The innovative new high-performance design architecture can detect multiple targets within the scene and also allows manufacturers to sub-divide the SPAD sensing matrix into custom-defined zones. These small zones can then provide spatial ranging information that the customer application can use for dual-camera computation in stereoscopy as well as simple depth-map use cases.
In contrast to technology used by other ranging sensors, ST’s new patented algorithms and direct Time-of-Flight architecture are immune to crosstalk at longer distances making the VL53L1X fully compatible with a larger selection of cover-glass materials and design artwork than before.
Click below to see a Calibration-Free dirty environment cover glass solution for VL53L1X
The I²C-based VL53L1X module comes with a full package of software drivers and documentation for quick and simple integration.
The VL53L1X is supported by the P-NUCLEO-53L1A1 complete evaluation kit allowing anyone to learn, evaluate, and develop their application using the VL53L1X ToF, long-distance ranging sensor technology. The evaluation kit comprises of the X-NUCLEO-53L1A1 expansion board and STM32 nucleo board, NUCLEO-F401RE, providing an affordable and flexible way for users to try out new ideas and build prototypes with any STM32 microcontroller, choosing from the various combinations of performance, power consumption, and features.
Anglia are offering customers FREE samples and an evaluation kit for the VL53L1X Time-of-Flight Sensor from STMicroelectronics, please fill in the form below to register your interest now.
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