Heraeus Noblelight GmbH offer UV-LED performance increase due to special micro-optics

Content Dam Leds En Ugc 2011 06 Heraeus Noblelight Gmbh Offer Uv Led Performance Increase Due To Special Micro Optics Leftcolumn Article Thumbnailimage File
Date Announced: 14 Jun 2011

UV LED systems are increasingly applied in innovative printing and curing applications. Different, in particular larger, working distances between the UV LED light source and the material may impair or even prevent the process. With its UV LED units and the use of a special micro-optics technology, Heraeus Noblelight offsets this weakness. This allows higher process speeds even at larger working distances.

NobleCure® is the new UV LED module made by Heraeus.
It is a modular LED unit in the near UV range that comprises all peripheral components such as cooling, control and power supply. These components are optimally tuned to each other to optimize the service life of the light source. At a wavelength of 395 nm, NobleCure® has an irradiance of at least 4 watts per cm². As the area of the emission window is almost 40 cm², the resulting total optical output is about 200 watts. This high total optical output is achieved, among other things, by the use of a technologically unique micro-lens for which a patent is pending.

The special micro-optics technology enables the beam to be shaped to optimally suit the working distance required. This improves the uncoupling efficiency of the UV LED system by more than 50 percent. Even at different distances to the material, the irradiance drops just slightly initially but then remains relatively stable. Therefore, NobleCure® can be used at various working distances to the substrate without the need to retool the system.
The UV LED special light source can therefore be used for applications that require a small working distance, such as inkjet applications, but also in printing processes that require a larger distance. Offset and flexo-printing are particular examples, but also adhesive curing or lithography applications in which objects with different shapes are treated with ultraviolet light. Irradiance remains relatively constant even at different working distances up to about 100 mm. The particular micro-optical beam shaping of the NobleCure® offsets the weak point of conventional UV LEDs where the irradiance drops to a minimum as the distance increases.
The special Heraeus optics that can be adjusted to the relevant application not only provide high optical output but also help to increase the process speed. More light and higher irradiance - even at large working distances.
Heraeus has developed this novel technology in its own laboratories and Heraeus also manufactures the UV LED special light sources. Learn more about Heraeus Noblelight and UV LEDs with special micro-optics at www.heraeus-noblelight.de.




Heraeus Noblelight GmbH with its registered office in Hanau and subsidiaries in the U.S., Great Britain, France, China and Australia is one of the world's market and technology leaders in the field of special light source production. In 2010, Heraeus Noblelight's annual turnover was €98.9 million and the company employed 689 staff world-wide. Heraeus Noblelight develops, manufactures and sells infrared and ultraviolet emitters for use in research, the manufacturing, environmental, medical and cosmetics industries and analytical laboratories.

Heraeus
Heraeus is a family-owned and globally active precious metal and technology Group based in Hanau, Germany, with 160 years of tradition. Our core competencies cover precious metals, materials and technologies, sensors, biomaterials, medical, dental and pharmaceutical products, quartz glass, and specialty light sources. On the strength of €4.1 billion generated from product sales, a precious metals trading volume of €17.9 billion as well as a total global workforce of 12,900 employees in more than 120 companies, Heraeus is a global leader in its market areas.

Contact
Heraeus Noblelight GmbH Heraeusstraße 12-14 D-63450 Hanau Sales: Marko Hofmann P : +49 6181 35-4627

E-mail:hng-optoelectronics@heraeus.com

Web Site: www.heraeus-noblelight.com

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