Parabolic Mirror, Illustration
All conic sections possess a mirror property which, in case of parabola, guarantees that the light emitted from a source located at the focus of a parabola and reflected off its inner surface travels along a straight line parallel to the axis of the parabola. The applet below is a simple illustration of this property.
The flashlights and automotive front lights have a light source at the focus of a parabolic mirror. Modern radio telescopes work on this principle as well but in reverse, collecting the rays from a distant source in the focus of a prabolic antena. Dish TV also works on this principle.
|What if applet does not run?
Conic Sections > Parabola
- The Parabola
- Archimedes Triangle and Squaring of Parabola
- Focal Definition of Parabola
- Focal Properties of Parabola
- Geometric Construction of Roots of Quadratic Equation
- Given Parabola, Find Axis
- Graph and Roots of Quadratic Polynomial
- Greg Markowsky's Problem for Parabola
- Parabola As Envelope of Straight Lines
- Generation of parabola via Apollonius' mesh
- Parabolic Mirror, Theory
- Parabolic Mirror, Illustration
- Three Parabola Tangents
- Three Points on a Parabola
- Two Tangents to Parabola
- Parabolic Sieve of Prime Numbers
- Parabolic Reciprocity
- Parabolas Related to the Orthic Triangle
Copyright © 1996-2018 Alexander Bogomolny