Illumination device using micro-textured sheet

An illumination device, comprising:

• an elongated transparent cylinder having a first cylinder end, a second cylinder end and a cylinder side, said first cylinder end covered by a housing containing a light emitting diode such that a light emitted from the light emitting diode is directed substantially into the cylinder,
• a micro-textured sheet of a bright-colored translucent polyvinyl chloride placed inside the cylinder to substantially cover an inside wall of the cylinder side,
• said sheet having an inner surface that is micro-embossed with a geometric pattern of tetrahedral prisms in order to maximize illumination, said geometric pattern of tetrahedral prisms being substantially invisible to the naked eye, an apex of each tetrahedral prism having angles of approximately 90 degrees, approximately 81 degrees and approximately 81 degrees.

An illumination device, comprising:

• an elongated transparent cylinder having a first cylinder end, a second cylinder end and a cylinder side, said first cylinder end covered by a housing containing a light emitting diode, a light emitted from the light emitting diode being directed substantially into the cylinder,
• a micro-textured sheet of a bright-colored translucent acrylic plastic placed inside the cylinder to substantially cover an inside wall of the cylinder side,
• said sheet having an inner surface that is micro-embossed with a geometric pattern of tetrahedral prisms in order to maximize illumination, said geometric pattern of tetrahedral prisms being substantially invisible to the naked eye, the geometric pattern of tetrahedral prisms having an associated visible brickwork pattern of squares