Napioa - Wind Origins

Napioa - Wind Origins
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Focus is the mechanism of converging light from a point light source onto an imaging plane by a lens.

For detailed information on how focus works, see the Imaging Properties section on this Wikipedia article: http://en.wikipedia.org/wiki/Lens_(optics).

A basic diagram of lens focus of points of light in and out of the plane of focus is demonstrated here:

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