Patent attributes
An illuminated cap in one embodiment includes a crown having a visor and a nonrigid arc member around a bottom edge of an inner surface of the crown. A light source assembly includes a circuit board, light emitting members connected to the circuit board, a switch connected to the circuit board, and at least one cell on the circuit board. A transparent member on a rear strap of the crown has a groove, with the light emitting members mounted therein. The transparent member is lit when the light emitting members are activated. A translucent member on an outer surface of the transparent member includes openings arranged as a predetermined shape. Emitted light is adapted to pass through the transparent member and to further pass through the openings to show the predetermined shape as a warning to rear incoming vehicles in the night.