Heptagonal quasicrystals: Construction of 2D lattices and demonstrations using laser pointers – Concluding part

Photographic slides of an aperiodic heptagonal tiling were used as two-dimensional diffraction gratings (as a standard approach) to describe and demonstrate the basic properties dodecagonal quasicrystals. The paper completes our earlier two publications dealing with (1) Penrose (decagonal) Ammann (octagonal) quasicrystals (2) quasicrystals, which constructed presented in analogous manner.