General Electric Company

Tungsram Reszvenytarsasag

Tungsram Co., Ltd.

Miklos Hargitai

Jozsef Fulop

Jozsef Tokes

Gyorgyi Horvath

Istvan Wursching

Erzsebet Cserteg

Ferenc Lantos

Leon F Chamberlain

Tamas Palotai

The invention relates to an electric lamp, especially a compact fluorescent lamp comprising a light source as well as a base part constructed to be suitable for supporting and for mechanically and electrically connecting the light source to a lampholder and embracing the ends of the light source where the ends of the electrical leads of the light source are connected to contacts fixed on the base part. The invention also relates to a method for fixing the light source and the base part of an electric lamp, especially of a compact fluorescent lamp to each other. The essential feature of the lamp according to the invention is that an adapter piece embracing at least one of the ends of the light source being with its ends in the base part is fixed to the end(s) of the light source, and the adpapter piece is fixed to the base part. The essential feature of the method according to the invention is that an adapter piece is placed on at least one end of the light source provided with a pinched portion which adapter piece is fixed on the pinched portion of the lamp by snapping, and the surfaces of the adapter piece and of the pinched portion are formed to be suitable for being snapped into each other, and the end(s) provided with the pinched portion(s) of the light source is (are) placed into the base part, and the adapter piece(s) is (are) fixed here by means of a permanent joint.

Electric lamp and method for fixing the light source and the base part

A single-ended low pressure discharge lamp having an Edison base includes at least one U-shaped fluorescent tube having electrode leads which are connected to a ballast arrangement disposed in a housing base. The housing base has an upper part on which the fluorescent tubes are mounted, a connecting part on which a threaded base is mounted and a supporting part formed between the upper part and the connecting part. Lead-in wires are connected from the ballast arrangement to the threaded base in a manner to facilitate automated assembly of the lamp. A first lead in wire connects to the central portion of the threaded base whereas a second lead-in wire connects to the sleeve portion after first passing through a guided opening formed in the housing base between the supporting part and the connecting part.

Single-ended low-pressure discharge lamp

The present invention relates to low-pressure discharge lamp having a discharge tube filled with mercury and a noble gas, sealed in a gas-tight manner and provided with electrodes at its ends and having a cap connected to the discharge tube and contact components for connection to a power supply, the discharge tube ends containing the electrodes are arranged adjacent to each other, the electrode-side ends of the discharge tube are fixed--e.g. by means of an adhesive--in the cap, at least a portion of the electrode leads is fixed in the holes of the connecting part of the cap and is connected to conduct electric current, with at least a part of the contact components protruding from the outer side of the connecting part. According to the invention the contact components (1) are completed with connecting extensions (1a) located in the inner space (2a) of the cap (2), at least a part of the leads (4a) is fixed to the connecting extensions (1a) of the contact components (1) and the joint (5) between the leads (4a ) and the connecting extensions (1a) is also arranged in the inner space (2a) of the cap (2).

Low-pressure discharge lamp

Growing community of inventors

Budapest, Hungary

Miklos Hargitai