US 4,358,708 AGranted

Light emitting diode assembly

AssigneeNorth American Philips Corporation

InventorsJoseph A. Silva, Paul Manchenko

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Abstract

A lamp assembly includes a lamp and a lamp package. The lamp includes a light-emitting portion with a flange at its base and electrically conducting leads extending from the base. The flange has a flat portion. The lamp package includes a cylindrical housing and a cylindrical cover. The housing has a base and a side wall, the base having holes for the electrical leads to pass therethrough, the bore in the housing being ssmaller than the flange of the lamp. A portion of the side wall of the housing has a flat key for engaging the flat portion of the flange. The cover has a side wall and an inwardly extending flange such that when the cover is slid over the lamp and the housing, the inwardly extending flange engages the outwardly extending flange of the lamp thereby holding it in place against the top of the housing and against the flat key of the housing.

Claims13

Dependent claims

A lamp assembly, of the type comprising a lamp in a package, said lamp having a cylindrical light-emitting portion with a base, said base comprising an outwardly extending flange, said flange having a flat portion, said lamp having at least one electrically conducting lead extending from the base in a direction away from the light-emitting portion, characterised in that said package comprises:

a cylindrical housing having a base and a side wall, said base having an opening for the insertion of the conducting lead, the inner diameter of the housing being smaller than the outer diameter of the flange of the lamp so that the flange cannot be inserted into the housing, a portion of the side wall of the housing being provided with a flat key, said lamp being placed on the side wall of the housing with the lead passing through the opening in the base and the flat key engaging the flat portion of the flange;
and
a cylindrical cover having two ends, said cover having a side wall and an inwardly extending flange forming a bore at one end thereof, the inner diameter of the cover being slightly larger than both the outer diameter of the housing and the flange of the lamp, the bore diameter being smaller than the outer diameter of the flange of the lamp, said cover being placed over the housing and the outwardly extending flange of the lamp such that the inwardly extending flange of the cover engages the outwardly extending flange of the lamp, thereby holding the lamp onto the side wall of the housing.

A lamp package, for holding a lamp having a cylindrical light-emitting portion with a base, said base comprising an outwardly extending flange, said flange having a flat portion, said lamp having at least one electrically conducting lead extending from the base in a direction away from the light-emitting portion, comprising:

a cylindrical housing having a base and side wall, said base having an opening for the insertion of the conducting lead, the inner diameter of the housing being smaller than the outer diameter of the flange of the lamp so that the flange cannot be inserted into the housing, a portion of the side wall of the housing being provided with a flat key which, in operation, engages the flat portion of the flange when the lamp is placed on the side wall of the housing;
and
a cylindrical cover having two ends, said cover having a side wall and an inwardly extending flange forming a bore at one end thereof, the inner diameter of the cover being slightly larger than both the outer diameter of the housing and the flange of the lamp, the bore diameter being smaller than the outer diameter of the flange of the lamp, wherein, in operation, said cover is placed over the housing and the outwardly extending flange of the lamp such that the inwardly extending flange of the cover engages the outwardly extending flange of the lamp, thereby holding the lamp onto the side walls of the housing.

Dependencies are inferred from the claim text.