Matter begins by division of stillness in the inert gases and its projection by two-way motion into pairs of octave wave tones, which we call elements. The principle of projection is the same that man uses in projecting the concept of his idea into the moving form of the idea. It is the dual radar principle of Nature. Reduced to its ultimate simplicity, Nature is a series of echoes.
Corner Cube Retro-Reflectors have three mutually perpendicular surfaces and a hypotenuse face. It operates on the principle of total internal reflection(TIR). A beam entering the effective aperture is reflected by the three roof surfaces and emerges from the entrance/exit surface parallel to itself. This property is independent of orientation of the retro-reflector, within acceptance angle limitations. For applications in which either the acceptance angle for TIR is exceeded, or the reflecting surfaces can not be kept sufficiently clean for TIR, a metal or dielectric coating can be apllied to the reflecting surfaces.
Corner Cube Prisms
Corner Cube Retro-Reflectors
Corner Cube Retroreflectors
Figure 2.1.5 - Russells Rings forming Spheres from Three Pairs of Reflecting Mirrors
Figure 6.11 - Cube Corner Reflectors Dissipating and Concentrating
Mirrors and Lens of Cosmic Cinema
Part 04 - Rotation on Three Planes
Part 06 - Formation of Cubes
6.6 - Cube Corner Retroreflectors