| 摘要 |
A lamp assembly (10) comprising: a side-emitting LED light source (12), a planar substrate (14) having a first side and a second side, said LED light source being mounted in a center region of said first side (16), leaving an edge region of the first side extending circumferentially around said LED light source; said substrate having a portion (24) of high thermal conductivity in thermal contact with said LED light source (12); a reflector (26) having a reflective surface (28) defining a concave cavity (29) with an opening (30) in a direction toward a field to be illuminated and having a through passage (32) extending into said cavity; said LED light source (12) being extended through said passage (32) and having light emitting surfaces (34) facing said reflective surface (28), said edge region being circumferentially sealed to said reflector (26), and electrical connections (36) extending through said planar substrate (14) connecting said LED light source (12) to a supply of electrical power (38). |
