Optical Electronics: RGB LED and the colours of the rainbow
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Optical Electronics is an exciting and growing field of electronics. This activity will look at Red Green Blue (RGB) Light Emitting Diodes (LED). Optical Electronics is a great way of combining both optics and electronics theory into a context for learning. This article outlines two practical student activities using RGB LED. It combines electronics and optical concepts that can be adapted to suit a variety of high school grades. It is also a good introduction to colour television technology and a biological understanding of the human eye and its interpretation of colour.
© 2005 Australian Science Teachers Association. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.