2. Ingrid Biermans*, Isabel François *,, Marina Meeuwssen*, Johan Hendrix*, Piet Watté*,
* Philips Innovative Applications, Turnhout, België
High Tech Campus, Eindhoven, Nederland
STEM you
3. Green light for girls and boys
• Philips Turnhout participated at the S.T.E.M.-
event organised by the European school Mol
• S.T.E.M = encourage children to study
S(cience) T(echnology) E(ngineering) &
M(athematics)
• A team from the Global Technology
Development department HID facilitated a
workshop “Did you see the light?”
4. Isabel François and Johan Hendrix help students to build their own spectrometer
using a card board box and a CD Rom. With this spectrometer they measured the
spectral lines of light from different light sources (CFLi, LED, incandescent lamp, SOX
and a living colour lamp)
5. Ingrid Biermans measures beam de-mixing when the arc of a HID lamp is
not in the focal point of a reflector.
6. Marina Meeuwssen shows how by mixing the 3 basic fluorescence powders (blue,
red and green) you can make a powder that lits up white under a UV lamp.
7. Piet Watté explains the theory behind dispersion or diffraction of light at a prism.