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In-cabin sensing is moving from a comfort feature to a core part of vehicle safety systems. ams OSRAM is positioning its OSLON Black IR:6 C-Series infrared LEDs for camera-based driver and occupant monitoring, where low-visibility illumination is important inside the cabin.

For eeNews Europe readers, the development is relevant because in-cabin sensing is becoming a design requirement for future vehicle platforms. It also highlights how optoelectronics suppliers are addressing practical issues such as night-time performance, driver distraction and system acceptance.

Monitoring moves inside the vehicle

Driver assistance systems have traditionally focused on the road outside the car, but vehicle sensing is increasingly turning inward. In-cabin sensing systems can monitor driver fatigue or distraction, check whether passengers are present and support functions such as child or pet detection in the rear seat.

“In-Cabin Sensing is more than just a technological trend,” says Tobias Hofmeier, Product Marketing Manager at ams OSRAM. “It is about responsibility in road traffic. When vehicles are equipped to better understand what is happening inside the cabin, they can help support occupant safety, often in situations where seconds make all the difference.”

Such systems rely on cameras and infrared illumination to detect faces, gaze direction and occupant behaviour across changing lighting conditions. For automotive designers, this means the infrared source needs to provide reliable illumination without becoming visible or distracting to people in the vehicle.

Reducing red glow at 940 nm

The OSLON Black IR:6 C-Series uses high-power 940 nm infrared LEDs intended for camera-based in-cabin applications. According to ams OSRAM, the devices reduce the so-called red glow effect, which can otherwise be visible from infrared light sources and may be irritating during night driving.

Reducing that effect at chip level could improve user acceptance while keeping the illumination suitable for driver monitoring and occupant monitoring. The LEDs are designed for applications including driver monitoring, occupant monitoring and child presence detection.

ams OSRAM also points to longer-term use cases such as medical emergency detection, cognitive state monitoring, and intoxication or impairment detection. These functions remain dependent on wider sensor, software and regulatory developments, but they indicate where in-cabin sensing solutions are heading. The OSLON Black IR:6 C-Series, also referenced as OSLON Black SFH 472XXCS A01, is offered with various emission angles and optical options.

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