Patent ID: 7478936
Filing Date: 2009-01-20
Classification: F21K,F21S,F21Y,G02B

Abstract:
1. A tubular lamp device, comprising: an elongated shade member; two socket members mounted to a bottom of said shade member, each of said socket members having a base element and a tubular element, a first end of said tubular element joined to and sealed by a major surface of said base element; and a transparent lamp tube whose two ends are plugged into a second end of said tubular elements of said socket members, respectively, so that said lamp tube is held below and substantially parallel to said shade member, said lamp tube having an axial strip along its circumference adjacent to said shade member, said axial strip being coated with a reflective film; wherein, inside said tubular element, said lamp tube is directly attached to a second side of a solid lens element; a first side of said lens element is attached to a second side of a substrate inside said tubular element; a first side of said substrate is attached to one of said major surfaces of said base element; a second side of said substrate has a LED element; said first side of said lens element has a hole accommodating said LED element entirely; a bottom of said hole is bulged towards said LED element; said LED element is positioned such that its light beams is directed into said lens element and refracted to shoot into said lamp tube; and the light beams are then reflected by said reflective film downward to create an area of illumination as the light beams propagate through said lamp tube.