Three-dimensional rotatably-readable encoding of data for optical machine-reading

A system for optical rotational machine-reading of data encoded in a three-dimensional rotatably-readable encoding of data on a surface of an object, said object being a subject of said data, said system comprising:

• surface rotating functionality operable for rotating said surface in a plane coinciding with said surface, said surface comprising a multiplicity of three-dimensional shapes formed on a label adhered to said surface;
• light impinging functionality operable for impinging light onto said multiplicity of three-dimensional shapes, said multiplicity of three-dimensional shapes being formed to reflect light impinging thereupon while said surface is rotated by said surface rotating functionality;
• light detecting functionality operable, responsive to said impinging light onto said multiplicity of three-dimensional shapes and to said rotating said surface by said surface rotating functionality, for detecting light reflected from said multiplicity of three-dimensional shapes, characteristics of said reflected light representing data encoded within said multiplicity of three-dimensional shapes;
• and
• data decoding functionality operable, responsive to said detecting light reflected from said multiplicity of three-dimensional shapes, for decoding said data encoded in said multiplicity of three-dimensional shapes,
• said characteristics of said light reflected from each of said three-dimensional shapes comprising at least one of an angle of reflection of said reflected light and an intensity of said reflected light.