Sony AS-DT1 3D LiDAR Depth Sensor

AS-DT1 LiDAR Depth Sensor Overview

The Sony AS-DT1 LiDAR Depth Sensor (AS-DT1) is widely used in robotics, UAVs, and embedded vision applications requiring precise real-time depth measurement.

The Sony AS-DT1 utilizes direct Time-of-Flight (dToF) technology combined with a Single Photon Avalanche Diode (SPAD) sensor array to deliver highly accurate 3D distance measurements. It outputs 576 ranging points per frame in a 24 × 24 grid, enabling reliable depth detection across dynamic environments.

The AS-DT1 operates at up to 30 frames per second (fps) in standard mode and 15 fps at maximum range. Its 940 nm laser supports accurate ranging up to 40 meters (131 ft) indoors and 20 meters (66 ft) outdoors.

Encased in a lightweight aluminum housing, the Sony AS-DT1 measures just 1.14" × 1.14" × 1.22" and weighs approximately 1.1 ounces, making it ideal for space-constrained embedded systems.

The AS-DT1 features dual USB-C ports, UART interface, and external trigger inputs, allowing flexible integration into robotics, drones, and industrial automation systems.

With a horizontal field of view (HFoV) of 30° or more and accuracy of ±0.2 inches at 10 meters, the AS-DT1 delivers precise, real-time depth sensing performance.

Key Features & Performance

Precision dToF + SPAD Architecture

• High-accuracy depth sensing using photon-level detection
• Reliable performance in low-light and variable lighting environments
• Improved detection of low-reflectivity surfaces

Real-Time 3D Depth Mapping

• Up to 30 fps output
• 576-point depth grid (24 × 24)
• Smooth depth tracking for dynamic systems

Compact, Lightweight Design

• 29 × 29 × 31 mm form factor
• Approximately 34g weight
• Ideal for drones, robotics, and embedded systems

Flexible Integration Interfaces

• Dual USB-C connectivity for data and power
• UART interface for system control
• External trigger input for synchronization

Real-World Performance Considerations

• Indoor Accuracy: ±0.2 inches at 10 meters
• Outdoor Performance: Reduced range due to ambient IR interference
• Point Density: 24 × 24 grid optimized for detection, not high-resolution mapping
• Frame Rate Tradeoff: 15 fps at maximum range mode

The AS-DT1 is best suited for obstacle detection, proximity sensing, and navigation systems rather than dense 3D reconstruction.

Integration & Applications

The Sony AS-DT1 is designed for seamless integration into embedded and AI-based systems.

• USB-C: Plug-and-play data and power
• UART: Control interface for embedded systems
• Trigger Input: Enables synchronized multi-sensor configurations

Compatible platforms include:

• NVIDIA Jetson embedded AI systems
• Embedded Linux platforms
• Robotics controllers
• UAV and drone systems

Applications:

• Drone obstacle detection and navigation
• Robotics and automation depth sensing
• Industrial machine vision and measurement
• Autonomous vehicles and mobile platforms
• Indoor mapping and 3D scanning
• Lightweight embedded sensing solutions

AS-DT1 vs Other Depth Sensing Technologies

• Higher accuracy in low-light conditions compared to stereo vision
• More reliable depth detection on low-texture surfaces
• Lower processing requirements than stereo-based systems
• Compact single-module design vs multi-camera setups

Stereo vision systems may offer advantages in high-resolution mapping and dense 3D reconstruction applications.

FAQ

What is the Sony AS-DT1 used for?

The Sony AS-DT1 is used for real-time depth sensing in robotics, drones, industrial automation, and embedded vision systems.

What is dToF LiDAR technology?

dToF LiDAR measures distance by calculating the time it takes for emitted light to return to the sensor.

How accurate is the AS-DT1 sensor?

The AS-DT1 provides accuracy of approximately ±0.2 inches at 10 meters.

Can the AS-DT1 be used outdoors?

Yes, with reduced range of up to approximately 20 meters due to ambient light.

Is the AS-DT1 suitable for robotics?

Yes, it is ideal for navigation, obstacle detection, and spatial awareness.