The picture below is just a representation. The description of light is actually on this page. https://thesingularityeffect.wordpress.com/physics/what-i-think-the-primer-fields/how-light-can-bend-around-an-object/
Sorry.
.Also http://socialnomicsingularity.wordpress.com/wavelengths-and-waveforms-waveforms/
The Singularity Effect 