Posted on Sunday, September 30th, 2018 in app notes by DP
Light guide basics app note from OSRAM. Link here (PDF)
Light Guides are used wherever the light of a light source should be distributed homogeneously over a particular area, when there is a spatial distance between light source and the area which is to be illuminated.
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Could a thin sheet of clear perspex, plus some surface mounted LEDs, act as a Light Guide – and illuminate a keyboard?