Thermally efficient LED bulb

A solid-state light source compatible with existing sockets normally reserved for filamented lamps comprising:

• a hollow base formed to mechanically and electrically adapt to a socket:
• and
• a sub-assembly adapted to cooperate with and fit into said hollow base, said sub-assembly comprising:
• a metal core having a bulbous body and a narrow foot depending therefrom;
• a circuit board substantially surrounding said metal core on two sides, said circuit board having a bulbous body positioned about said bulbous body of said metal core and having two spaced apart legs lying adjacent either side of said narrow foot;
• a plurality of solid-state light sources mechanically and electrically connected to one side of said circuit board;
• external electrical contacts positioned on said circuit board for connection to an electrical circuit;
• a glass dome covering said bulbous body of said circuit board and sealed to said hollow base, and
• wherein said sides of said metal core not covered by said circuit board are provided with heat radiating ribs.

A solid-state light source compatible with existing sockets normally reserved for filamented lamps comprising:

• a hollow base formed to mechanically and electrically adapt to a socket:
• and
• a sub-assembly adapted to cooperate with and fit into said hollow base, said sub-assembly comprising:
• a metal core having a bulbous body and a narrow foot depending therefrom;
• a circuit board substantially surrounding said metal core on two sides, said circuit board having a bulbous body positioned about said bulbous body of said metal core and having two spaced apart legs lying adjacent either side of said narrow foot;
• a plurality of solid-state light sources mechanically and electrically connected to one side of said circuit board;
• external electrical contacts positioned on said circuit board for connection to an electrical circuit;
• a glass dome covering said bulbous body of said circuit board and sealed to said hollow base, and
• wherein said hollow base includes a locking receptacle and said metal core includes a matching lock.

A solid-state light source compatible with existing sockets normally reserved for filamented lamps comprising:

• a hollow base formed to mechanically and electrically adapt to a socket:
• and
• a sub-assembly adapted to cooperate with and fit into said hollow base, said sub-assembly comprising:
• a metal core having a bulbous body and a narrow foot depending therefrom;
• a circuit board substantially surrounding said metal core on two sides, said circuit board having a bulbous body positioned about said bulbous body of said metal core and having two spaced apart legs lying adjacent either side of said narrow foot;
• a plurality of solid-state light sources mechanically and electrically connected to one side of said circuit board;
• external electrical contacts positioned on said circuit board for connection to an electrical circuit;
• a glass dome covering said bulbous body of said circuit board and sealed to said hollow base, and
• wherein at least one of said legs of said circuit board is provided with a latch and said hollow base has a latch receiver to mate therewith.