Precise distance measurement – ams OSRAM launches world’s smallest multi-zone dToF modules

News Facts:

  • ams OSRAM’s new direct Time-of-Flight (dToF) modules combine light source, detector and optics into one component
  • TMF8820, TMF8821 and TMF8828 enable detection of the target area in multiple zones and ensure extremely precise measurement results
  • Multiple objects can be detected per zone, and up to a distance of five meters
  • Target applications include Laser Detect Autofocus (LDAF) in smartphones, user presence detection in PC’s, Light Detection and Ranging (LiDAR) sensing in Industrial and Home/Business Automation systems

Premstaetten, Austria (17th December, 2021) -- ams OSRAM (SIX: AMS), a global leader in optical solutions, is expanding its portfolio of dToF modules with three new devices for multi-zone and multi-object detection with a wider field-of-view (FoV) and extended range. dToF sensors are a critical technology, used in a wide range of industrial and home or business automation applications. Industrial and in-home robots require sophisticated systems to detect their environment to ensure they are operating in a safe manner. The multi-zone dToF modules TMF8820, TMF8821 and TMF8828 from ams OSRAM divide their detection area into multiple zones to collect more and higher quality information. As a result, automated robots gain more "sensory awareness", enabling early detection of potential obstacles. System manufacturers also benefit from the compact design and ease of integration of the new modules. 

Robots are taking over more and more tasks not only in application areas such as warehouse automation, but also in the home. Special ToF systems are used to enable these robots to maneuver around unhindered, enabling them to navigate their environment. For example, vacuum cleaning robots recognize an object in their immediate surroundings and move around the obstacle. ams OSRAM’s new dToF modules allow precise distance measurement. "TMF8820, TMF8821 and TMF8828 devices report accurate distance measurements for multiple objects across a number of detection zones. This provides system manufacturers with much more information of what is happening in the environment thanks to the sensor that can see and make the appropriate decisions," said David Smith, Marketing Manager at ams OSRAM.

The TMF8820 dToF module divides the FoV into 3x3 or 9 individual detection zones, the TMF8821 into 4x4 or 16 individual detection zones and the TMF8828 into 8x8 or 64 individual detection zones. With multi-zone detection, it is possible to identify where an object is located within the sensors FoV. These new devices feature a dynamically adjustable FoV up to 63°, enabling customers to select either a narrow or wide FoV to meet their application needs. All three dToF modules have a detection range from one centimeter up to five meters.

The modules combine a 940 nm Vertical Cavity Surface Emitting Laser (VCSEL), a sensitive single photon avalanche photo diode (SPAD) detector array with matching multi-lens optics, and an on-chip microcontroller for histogram processing in one device. Thanks to the compact dimensions of 2.0 mm x 4.6 mm x 1.4 mm, the modules are the smallest multi-zone dToF modules available on the market.


Press Contact:
Simon Thaler
Tel.: +49 941 850 1693


ams OSRAM expands its portfolio for time-of-flight modules with TMF8820, TMF8821 and TMF8828.    
Picture: ams


Thanks to the division of the field of view into several zones, obstacles in the immediate vicinity of the robot can be precisely detected.
Picture: ams


About ams OSRAM

The ams OSRAM Group, with its parent company ams AG (SIX: AMS), is a global leader in optical solutions. By adding intelligence to light and passion to innovation, we enrich people’s lives. This is what we mean by Sensing is Life.

With over 110 years of combined history, our core is defined by imagination, deep engineering expertise and the ability to provide global industrial capacity in sensor and light technologies. We create exciting innovations that enable our customers in the consumer, automotive, healthcare and industrial sectors maintain their competitive edge and drive innovation that meaningfully improves the quality of life in terms of health, safety and convenience, while reducing impact on the environment.

Our around 26,000 employees worldwide focus on innovation across sensing, illumination and visualization to make journeys safer, medical diagnosis more accurate and daily moments in communication a richer experience. Our work creates technology for breakthrough applications, which is reflected in over 15,000 patents granted and applied. Headquartered in Premstaetten/Graz (Austria) with a co-headquarters in Munich (Germany), the group achieved well over USD 5 billion combined revenues in 2020 (pro-forma) and is listed as ams AG on the SIX Swiss Exchange (ISIN: AT0000A18XM4).

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ams is a registered trademark of ams AG. In addition many of our products and services are registered or filed trademarks of ams OSRAM Group. All other company or product names mentioned herein may be trademarks or registered trademarks of their respective owners. Information provided in this press release is accurate at time of publication and is subject to change without advance notice.

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