Electric lamp and associated production method

Patent metadata

Field	Value
Publication number	US-9263247-B2
Application number	US-201414327586-A
Country	US
Kind code	B2
Filing date	Jul 10, 2014
Priority date	Aug 16, 2013
Publication date	Feb 16, 2016
Grant date	Feb 16, 2016

Abstract

In various embodiments, a lamp has a bulb with a pinch seal, which holds a light-emitting element by means of a wire clip. The wire clip consists of tungsten and has, at an end remote from films embedded in the pinch seal, an eyelet for holding the light-emitting element. An end of the wire clip which is close to a film is bent back. A film associated with the wire clip is folded in a roof-shaped manner. Overall, it is thus possible to realize a lamp with a long life.

First claim

What is claimed is:

1. An electric lamp having a longitudinal axis, wherein the electric lamp is provided with a pinch seal; said pinch seal having two narrow sides and two broad sides, and wherein the electric lamp has a bulb consisting of quartz glass equipped with said pinch seal and films fitted therein, in which bulb a light-emitting element is held at the ends of said light-emitting element by a frame, wherein the frame has at least one wire clip, which holds an end of the light-emitting element which is remote from the films, wherein the wire clip is manufactured at least partially from tungsten and is bent back at an angle at a film-side end of said wire clip, and wherein a film associated with the wire clip is folded in the form of a V along the longitudinal axis, and a film associated with the light-emitting element is planar.

2. The electric lamp of claim 1 , wherein the folding of the film associated with the wire clip is performed in the center, and wherein the angle of the fold has a value in the range of 5° to 15°.

3. The electric lamp of claim 1 , wherein the film-side end of the wire clip is bent back through 30° to 60° with respect to the longitudinal axis.

4. The electric lamp of claim 1 , wherein that end of the wire clip which is remote from the films is bent back with respect to the longitudinal axis through an angle of from 75° to 105°.

5. The electric lamp of claim 1 , wherein that end of the wire clip which is remote from said films is bent back, wherein an end piece of the wire clip is formed as a coil comprising a plurality of turns, which coil is matched to that end of the light-emitting element which is remote from said films, outwardly as an eyelet.

6. The electric lamp of claim 5 , wherein the eyelet is formed from 4 to 8 turns of the coil.

7. The electric lamp of claim 1 , wherein the light-emitting element is inclined with respect to the longitudinal axis through 5° to 20°, wherein a film-side end of the light-emitting element is fastened on one of said films in the pinch seal.

8. The electric lamp of claim 1 , wherein the electric lamp is configured as built-in lamp which is surrounded by an outer vessel, said outer vessel being fastened to a lamp base.

Assignees

• Osram Gmbh

Inventors

• Heil Thomas
• Lang Heinz
• Stark Roland
• Rosenbauer Georg

Classifications

• H01K1/46

  supported by a separate part, e.g. base, cap · CPC title

• H01K1/34

  Double wall vessels · CPC title

• H01K1/18

  Mountings or supports for the incandescent body · CPC title

• H01K1/20

  characterised by the material thereof · CPC title

• H01K1/38 Primary

  Seals for leading-in conductors · CPC title