- A curve that the ray of light, mirrored or refracted by another bend, tend to be tangents, the showing or refracting bend together with luminous point becoming in one plane.
- a curve to which the ray of light, shown or refracted by another curve, are tangents, the reflecting or refracting curve while the luminous point becoming in one single plane.
Cross Reference for "caustic curve"
- caustic surface
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