Patent ID: 7018131

Claim:
An illuminated road marker, comprising a one piece housing formed of plastic, comprising a top plate and perimeter sides, wherein at least one perimeter side comprises a light transmission surface through which light can be transmitted, and wherein said top plate and said sides define a cavity in said housing; a plurality of light emitting diodes (LEDs) positioned within said cavity and oriented at angles different by 2 to 15 degrees such that light produced by said LEDs is transmitted through the same light transmitting surface, wherein the orientation of said LEDs at different angles increases the visibility of said marker; a long life battery within said cavity that energizes said LEDs, wherein said battery tolerates trickle charging without deterioration; at least one solar cell within said cavity adjacent said top plate, wherein said solar cell recharges said battery and to seperately control each of said plurality of LED's; and electrical circuitry within said cavity configured to control charging of said battery.