PLANE CURVES A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site caustic curve The envelope of rays of light reflected (or refracted) by a given curve from a given point source of light. A catacaustic results from reflection, a diacaustic from refraction. Among the caustic curves of a circle are limaçon, if the light source is nearby, a nephroid, if the source if at infinity, and a cardioid, if the source is on the circle. Related category    • PLANE CURVES Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP