Lighting apparatus having improved light output uniformity and thermal dissipation

A lamp, comprising:

• one or more light-emitting devices disposed on a thermally conductive board;
• a non-flat diffuser cap disposed on the thermally conductive board, the diffuser cap housing the one or more light-emitting devices therein;
• a thermally conductive reflector cup surrounding the diffuser cap and the one or more light-emitting devices, the reflector cup being operable to reflect a portion of light propagating through the diffuser cap, the reflector cup being thermally coupled to the thermally conductive board;
• and
• a heat sink disposed below the thermally conductive board, the heat sink being thermally coupled to the thermally conductive board.

A lighting module, comprising:

• a photonic device that generates light;
• a thermally-conductive printed circuit board (PCB) on which the photonic device is located;
• a diffuser cap having a curved profile covering the PCB and the photonic device, the diffuser cap having a textured surface for scattering light generated by the photonic device;
• a thermally conductive cup surrounding the diffuser cap and thermal-conductively coupled to the PCB, the cup having a reflective inner surface that reflects at least a portion of light transmitting through the diffuser cap;
• and
• a heat dissipation structure thermally coupled to the cup.