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ActLight SA focuses in the field of CMOS photonics by developing a new type of photodetector. Being a fabless company, ActLight specializes in the Intellectual Property (IP) of this area and provides supporting services like design and technology advice for its customers. ActLight SA, a start-up company founded in 2011 and based in Lausanne - Switzerland, developed a disruptive technology in the field of optical light sensors. The patented CMOS-based photonics technology allows to substantially improve the efficiency and accuracy of various light sensing applications like Time-Of-Flight (TOF) based distance measuring and gesture control, heart-rate monitoring, 3D/2D cameras and much more. ActLight operates in markets like mobile and wearable devices, healthcare/medtech, autonomous driving,drones and robotics. Our company, powered by its highly innovative R&D spirit and profiting from collaborations with leading institutions such as the internationally renowned EPFL, has swiftly evolved to become a technology leader in its segment. ActLight SA operates primarily in a licensing business model where revenue is generated from license and royalty fees but also from non-recurring engineering (NRE) projects. ActLight's team consists of experts in the fields of devices, materials, integration process, characterization techniques, circuits design, marketing and business development. IP protection and sales are performed by top experts located in US, Japan, and Switzerland. Strong advisory board includes both industrial and scientific experts.
ActLight’s Dynamic Photodiode (DPD) technology offers technological breakthrough in light sensing. Traditionally, photodiodes operate at constant reverse bias voltage giving photocurrent as output. Typically, this photocurrent is weak and requires further amplification. An amplifier introduces additional noise, which becomes crucial at low light conditions. Instead of using DC bias, the DPD operates at pulsed voltages: the applied voltage is switched from reverse to forward bias. This forward bias induces a large forward current after a time delay, so called triggering time, which depends on the light intensity. This way, we measure the delay time of the large forward current instead of the small photocurrent magnitude. Due to the large output signal, the DPD does not require any amplifier, and it can be directly connected to digital circuits. Absence of the amplifier and its associated noise provides a great improvement in the device performance. Based on the standard CMOS technology, the DPD and its simple front-end circuits are integrated on the same chip. The absence of complex analog circuits allows to reduce silicon area and provides cost-effective solution.
ActLight, a Swiss technology firm known for its Dynamic PhotoDiodes (DPDs), announced that it has signed an agreement with a top semiconductor company for the integration and licensing of the DPD into their Application Specific Integrated Circuit (ASIC) for vital signs monitoring, to be use ... > more
ActLight Announces Licensing With Top Semiconductor Company
ActLight, a Swiss technology firm known for its Dynamic PhotoDiodes (DPDs), announced that it has signed an agreement with a top semiconductor company for the integration and licensing of the DPD into their Application Specific Integrated Circuit (ASIC) for vital signs monitoring, to be use ... more
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