AES Semigas


2 July 2020

FBH and UVphotonics develop LED irradiation system – from disinfection to medical treatments

Berlin-based Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (FBH) and its spin-off UVphotonics NT GmbH have designed and developed a versatile turnkey irradiation system for surface treatment.

Since the compact, modular system can be equipped with both in-house-developed UV LEDs as well as commercially available UV, visible and infrared LEDs, it can be flexibly adjusted to the targeted emission spectrum.

For disinfection purposes the system can be equipped with in-house-developed LEDs emitting at 265nm to eliminate germs on critical surfaces, including personal items such as mobile phones and reusable masks as well as menu cards in restaurants. It can also be used in the professional sector, for example in healthcare clinics and laboratories.

The system is equipped with an illumination module comprising 16 UV LEDs distributed over an area of 80mm x 80mm. The LEDs provide an illumination intensity of >5mW/cm2. So, the irradiation system achieves the minimum UV dose of 500mJ/cm2 recommended by the Centers for Disease Control and Prevention (US Department of Health) in less than two minutes. An integrated timer ensures the correct dosage.

The module can control up to four different wavelengths separately, which can be an advantage in applications such as medical treatments and curing. To cover larger areas, the modular segments can be mechanically interconnected wire-free and therefore the system is flexibly expandable into one-dimensional as well as two-dimensional arrays. Also, individually shaped arrays are possible, which can be integrated into a large number of disinfection systems.

The overall system is a plug & play solution that can be computer-controlled or operated as standalone with constant power. Even programming a timing pattern is possible.

Tags: UV LEDs




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