Image: Lens and wavefronts
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Description: Illustration of wavefronts after passing through a lens. Interestingly, to produce a point source reverse the direction of the waves, with the focus point acting as a point source.
Title: Lens and wavefronts
Credit: self-made with MATLAB
Author: Oleg Alexandrov
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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