Patent ID: 6630773
Filing Date: 2003-10-07
Classification: F21S,F21V,H01J,H01K,Y02B

Abstract:
A structure of a fully enveloped miniature lamp bulb assembly for lamp strings, comprising: a miniature lamp bulb having two electrode pins with a predetermined distance therebetween and being connected in a glass body of the miniature lamp bulb to a, light emitting tungsten filament, portions of said electrode pins extending out of a bottom of the glass body and connected to a conductor pair; anda transparent cover having a predetermined shape which is made separately from the miniature lamp bulb and having an assembling hole of a size mating with said miniature lamp bulb and extending inwardly from an end thereof; wherein said miniature lamp bulb connected with said conductors is placed in said assembling hole by a positioning block interposed at a joint between the extending portion of said electrode pins and said conductors, a bottom of said transparent cover with said assembling hole is sealed with adhesive agent to complete said assembly, and wherein an inner wall of said assembling hole on said transparent cover is provided with a light converging surface.