New development in generation of micro lenses to control LED light

Eddy Kunnen

LED light is on the rise. This is because of the high efficiency, low energy consumption. One of the challenges is shaping the light beam according to customer needs with a minimum of lens material. We are investigating this aspect in collaboration with KU Leuven in the context of the ‘Lighting industry 4.0’ project.


By means of a matrix of microscopic lenses, the light can be distributed according to need. This lens structure can be made by injecting the lens material into a mould with the right microstructures. In order to achieve this, a mould is processed with a femtosecond laser. 

This use of micro-lenses makes it possible to direct the light within a defined area, thus allowing a direct view of the source and avoiding reflections. 


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Eddy Kunnen

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