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While the timeless allure of classic watchmaking and precision timepieces is deeply rooted in centuries-old craftsmanship, ActLight’s innovative approach allows modern sensors to be seamlessly integrated into select designs, thereby enhancing their appeal to discerning consumers.

“What we are doing, we are using devices slightly differently, in a dynamic way. Instead of keeping the voltage constant, we switch it from reverse to forward and detect the time when the forward current starts. Simply put, when everybody else would measure photocurrent, we are measuring time.” The amplitude of the output signal is very high and can easily be measured without analog amplification, resulting in a significantly improved signal-to-noise performance compared to conventional photodiodes.

The Role of Sensor Technology in Luxury Watches

Luxury watches have long epitomized craftsmanship and elegance. However, the evolution of consumer expectations has spurred a demand for timepieces that offer more than just aesthetic appeal. Modern consumers seek watches that can seamlessly integrate into their lifestyle, offering functionalities such as health monitoring, smart notifications, and personalized data insights.

ActLight’s Contribution to the Industry

ActLight’s Dynamic PhotoDetector (DPD) technology represents a significant advancement in sensor capabilities. Unlike conventional photodiodes, which operate under static conditions, DPDs leverage dynamic modes to enhance sensitivity and reduce power consumption. This innovation opens doors for luxury watchmakers to incorporate sophisticated health monitoring features without compromising on design integrity.

For ActLight, the new concept provides not only technological advantages but also advantages in terms of IP: “In general, the sensor market is very crowded. You can never be sure that what you are doing has not been done before. However, we are not just improving an existing technology but bringing a totally new concept to the market. ActLight is the only company that has been granted patents in this field,” – clarifies Serguei.

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Advantages of Dynamic PhotoDetectors

The DPD’s ability to operate at ultra-low power levels and high sensitivity makes it ideal for applications where size, efficiency, and performance are paramount. By integrating DPDs, luxury watch manufacturers can offer wearers real-time health insights such as heart rate variability and blood oxygen levels, enhancing the overall value proposition of their timepieces.

Future Outlook

As technology continues to advance, ActLight remains committed to pushing the boundaries of what’s possible in luxury watchmaking. By providing scalable and innovative sensor solutions, ActLight empowers Swiss watchmakers to stay ahead in a competitive global market. The marriage of traditional craftsmanship with cutting-edge sensor technology not only enhances the functionality of luxury timepieces but also underscores Switzerland’s leadership in precision engineering and innovation.


In conclusion, ActLight stands poised to redefine the future of luxury watchmaking through its Dynamic PhotoDetector technology. By enabling seamless integration of advanced sensors into classic designs, ActLight is paving the way for a new era of smart elegance in Swiss watchmaking. As consumer expectations evolve, ActLight remains steadfast in its commitment to delivering innovative solutions that elevate both the art and science of timekeeping.

For more insights into ActLight and its pioneering technologies, visit ActLight’s website.