High-speed autofocus in smartphones, approach detection in robotics and IoT products, and objects
FlightSense™ Low-Power, Compact Sensor for Detection

ST has introduced the VL53L0, a second-generation laser distance measuring sensor based on its successful FlightSense™ technology. This new product enables faster and more accurate distance measurement over longer distances, which will not only dramatically improve camera performance in smartphones and tablets but also open up new capabilities and market possibilities in fields such as robotics, user recognition, drones, IoT, and wearables.

With a compact form factor of 4.4 x 2.4 x 1 mm, the VL53L0, the world's smallest Time-of-Flight (ToF) module, is the first to integrate a 940nm Vertical Cavity Surface-Emitting Laser (VCSEL) light source, a Single-Photon Avalanche Diode (SPAD) light detector, and an advanced microcontroller to achieve perfect distance measurement. Furthermore, as the industry's first module to combine an advanced infrared filter with a 940nm light source, it is virtually unaffected by ambient light, and this light source operates within a range imperceptible to humans. In addition, the built-in microcontroller and digital algorithms can minimize both host processing in the final application and the system's power consumption.

Eric Aussedat, General Manager of ST Imaging, stated, “As ST’s ToF-based distance sensors advance, the way millions of consumers take photos and videos using smartphones and tablets is also evolving, ultimately improving the user experience.” He added, “ST first launched a fully integrated ToF distance sensor in the market in 2014, and major OEMs selected it for laser-assisted autofocus capabilities. Now, with the release of the next generation, the VL53L0, not only will the standards for measurement performance be redefined, but it will also support the development of applications in new sectors such as robotics and IoT.”

Measured at a distance of 2m, at a speed of less than 30ms

The VL53L0 can perfectly measure distances within 2 meters at a speed of less than 30ms (the time of one camera image frame). At this level of performance, the camera system can achieve instantaneous and very fast autofocus in both video and burst modes, even in low-light or low-contrast conditions. This is a capability that is very difficult to achieve in camera systems without FlightSense™ technology.

In addition, its excellent accuracy enhances smartphone application capabilities, including dual-camera-based high-sensitivity mapping, and will create new possibilities in fields such as robotics, user recognition, drones, IoT, and wearables.

ST's VL53L0 module is easy to use (6 effective pins), is based on the I2C interface, and provides API drivers and documentation to enable fast and simple integration. The module package is reflowable, RoHS compliant, and fully compatible with various types of cover glass and design test boards.

VL53L0 is currently in mass production and is being supplied at $1.75 based on a minimum order unit of 5,000.