Summary of STMICROELECTRONICS EXPANDS PORTFOLIO OF FLIGHTSENSE TOF RANGING SENSORS
STMicroelectronics released the VL53L3CX ToF ranging sensor featuring a patented histogram algorithm, 2.5 cm–3 m range, color- and reflectance-independent measurements, improved cover-glass crosstalk immunity, real-time smudge compensation, and increased linearity for better short-distance accuracy, enhancing wall tracking, cliff detection, obstacle avoidance, occupancy detection, proximity sensing, auto-wakeup, and user detection in various applications.
Parts used in the VL53L3CX Project:
- VL53L3CX time-of-flight (ToF) ranging sensor
- Cover glass (optical protective window)
- Patented histogram algorithm (firmware/software component)
- Device host/controller for integration (microcontroller or processor)
- Mounting hardware/PCB for sensor integration
- Power supply and interface circuitry
STMicroelectronics announced the release of the VL53L3CX, a capability expansion of the company’s FlightSense ToF ranging sensors, with a patented histogram algorithm.

The new sensor measures object ranges from 2.5cm to 3m, remaining unaffected by color or reflectance.
The histogram algorithm increases cover-glass crosstalk immunity and allow real-time smudge compensation preventing external contamination from adversely affecting the ranging accuracy for a number of applications.
Further, the VL53L3CX has increased linearity, increasing short-distance measurement accuracy. This enhances wall tracking, cliff detection, and obstacle avoidance in equipment.
ToF sensing help to heighten the perperformance of application by allowing for more accurate occupancy detection in building-automation and lighting controllers, smarter proximity sensing in IoT endpoints, more convenient auto-wakeup in portable devices, and more robust user detection in automatic sanitary equipment.
Read more: STMICROELECTRONICS EXPANDS PORTFOLIO OF FLIGHTSENSE TOF RANGING SENSORS
- What is the ranging distance of the VL53L3CX?
The VL53L3CX measures object ranges from 2.5 cm to 3 m. - Does object color or reflectance affect VL53L3CX measurements?
No, the sensor remains unaffected by color or reflectance. - How does the VL53L3CX handle smudges or external contamination?
It uses a patented histogram algorithm that allows real-time smudge compensation to prevent contamination from affecting ranging accuracy. - What benefit does the histogram algorithm provide regarding cover glass?
The histogram algorithm increases cover-glass crosstalk immunity. - How has short-distance accuracy been improved?
The VL53L3CX has increased linearity, improving short-distance measurement accuracy. - Which application areas benefit from VL53L3CX ToF sensing?
Applications include wall tracking, cliff detection, obstacle avoidance, occupancy detection in building automation and lighting, proximity sensing in IoT endpoints, auto-wakeup in portable devices, and user detection in automatic sanitary equipment. - Can VL53L3CX improve occupancy detection?
Yes, ToF sensing with the VL53L3CX helps provide more accurate occupancy detection in building-automation and lighting controllers. - Is the VL53L3CX suitable for obstacle avoidance?
Yes, its improved short-distance accuracy enhances obstacle avoidance performance.
