Patent ID: 8591064
Filing Date: 2013-11-26
Classification: F21S,F21V,F21W,F21Y,H05K,Y02B

Abstract:
1. A light emitting diode (LED) street lamp, comprising: a plurality of LED chips formed on a plurality of sapphire substrates, respectively; a ceramic substrate having an upper surface and a lower surface; a first thermally radiative heat dissipation film disposed on the lower surface of the ceramic substrate and made from a mixture of metal and nonmetal, wherein the first thermally radiative heat dissipation film has a first surface microscopic crystalline structure, which is formed of a plurality of crystals, and the first thermally radiative heat dissipation film has a contact surface connected to the ceramic substrate and a binding surface bound with the sapphire substrates by silver paste; a lamp shade with light transparency disposed under the LED chips, wherein the lamp shade and the nano-enamel layer are connected together to enclose the LED chips, the ceramic substrate and the first thermally radiative heat dissipation film, the nano-enamel layer has an inner surface and an outer surface, and the inner surface faces the LED chips; a second thermally radiative heat dissipation film with light transparency disposed on the inner surface of the lamp shade and made from the mixture of metal and nonmetal, wherein the second thermally radiative heat dissipation film has a contact surface connected to the lamp shade and a free surface, which has a second surface microscopic crystalline structure formed of the crystals; and a lamp post connected to the nano-enamel layer to provide support function.