Coffee cup or travel mug? New high-resolution dToF sensor sees the difference
PREMSTAETTEN,
“The new dToF sensor supports precise 3D detection and differentiation in diverse applications — without a camera and with stable performance across varying targets, distances, and environmental conditions,” says
New benchmark for dToF technology
With dToF technology, the sensor emits light pulses in the invisible infrared range. These pulses reflect from objects in the sensor’s field of view and return to the sensor, which calculates the distance based on the time it takes for the light to travel — similar to how the delay of an echo reveals distance: the longer it takes, the farther away the object. Multi-zone sensors enhance this by capturing reflected light from multiple viewing angles (zones), like a network of echo points. This enables the creation of detailed 3D depth maps.
The TMF8829 divides its field of view into up to 1,536 zones — a significant improvement over the 64 zones in standard 8x8 sensors. This higher resolution enables finer spatial detail. For example, it supports people counting and presence detection in smart lighting systems, object detection and collision avoidance in robotic applications, and intelligent occupancy monitoring in building automation. The detailed depth data also provides a foundation for machine learning models that interpret complex environments and enable intelligent interaction with surroundings.
Measuring just 5.7 × 2.9 × 1.5 mm— thinner than a cent coin and more compact than typical sensors with lower resolution — the TMF8829 delivers high resolution in a format ideal for space-constrained devices. Because it operates without a camera, it supports privacy-sensitive applications. When paired with a camera, the sensor enables hybrid vision systems like RGB Depth Fusion, combining depth and color data for AR applications such as virtual object placement.
Classified as a Class 1 eye-safe device, the TMF8829 uses a dual VCSEL (Vertical Cavity Surface Emitting Laser) light source to measure distances up to 11 meters with 0.25 mm precision — sensitive enough to detect subtle movements like a finger swipe. With its 48x32 zones, the sensor covers an 80° field of view, delivering depth information across a scene comparable to that of a wide-angle lens. On-chip processing reduces latency and simplifies integration. Instead of relying on a single signal, the sensor builds a profile of returning light pulses to identify the most accurate distance point — ensuring stable performance even with smudged cover glass. Full histogram output supports AI systems in extracting hidden patterns or additional information from the raw signal.
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Further information
The TMF8829 will be available in Q4 2025. More information on the TMF8829 can be found here.
View source version on businesswire.com: https://www.businesswire.com/news/home/20250829999444/en/
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