Abstract: An illumination device having an elongated transparent cylinder has one cylinder end covered by a housing containing an LED. A micro-textured orange or red polyvinyl chloride sheet is rolled inside the cylinder to maximize illumination at a range of external locations. The surface of the plastic seen by the unaided eye is a smooth surface and a textured surface. The textured surface faces inside the cylinder and is micro-textured according to a geometric pattern. A brickwork pattern of 4 millimeter squares is visible, wherein every third square in a row scatters light in the same way. The surface of each square is shaped by three sets of excised parallel grooves which meet in a common set of intersections at the center-lines thereof to form a lattice defining isosceles triangles. The upper sides of the grooves meet at apices within each triangle to form irregular tetrahedra on each respective triangular base.

Abstract: A hand-held beacon uniquely suited for hailing taxicabs is an excellent signaling device that is easy to operate and adaptable for carrying. Pushing a button on the handle portion closes a circuit to cause a light source at the top of the handle portion to beam light. In some embodiments, a reflective, blocking layer adhesively attached to the inside of the device focuses the light in a desired direction. Also desirably, the device has a plurality of annular bands. The reflective layer, which reflects light coming from outside in some embodiments is reflective also on the inside for enhanced distribution of light through the light element.