Reflection of Light Rays by an Ellipse

A light source at the radiant point S produces radial light rays. The rays are reflected by the ellipse. The envelope of the reflected rays by the ellipse is the catacaustic of the ellipse (also called caustic).

Visit: http://lima.osu.edu/people/ibo…pse_radial.html

math_prof — 2011年11月10日 - 下午4:50

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