PARABOLIC MIRROR
A parabolic mirror makes light emitted from a single point parallel. It can focus parallel incident light to a single point. It is also an optical element that can convert spherical waves into plane waves and plane waves into spherical waves.
Application example
Searchlights, fusion focusing mirrors, spectroscopic optics, etc.
Geometrical optical properties of parabolic mirrors
Geometrical optical properties of off-axis ellipsoidal mirrors
