Geodesic icosahedral golf ball dimple pattern

摘要

A method of laying out a dimple pattern on a golf ball comprises constructing a geodesically expanded icosahedron having 60 equal triangular faces (43). Each of the 60 triangular faces (43) includes a substantially identical dimple pattern. The geodesic icosahedron is formed by constructing an icosahedron which is circumscribed by a sphere which has the diameter of the golf ball. A point (39) is determined in each of the 20 icosahedral triangles (35) of the icosahedron by bisecting the three sides (36) of the icosahedral triangle (35). A geodesic focus point (41) is determined by projecting said point (39) onto the surface of the sphere. Each geodesic focus point (41) is connected to each apex (37) of the icosahedral triangle (35) so that each geodesic focus point (41) forms a right regular tetrahedron having a base formed by the icosahedral triangle (35) and three triangular faces (43) which merge at the geodesic focus point (41). $$