General Electric Company

Zoltan Laszlo Bako

Zoltan Kamill Suha

Zsuzsanna Klara Varga

Imre Molnar

Jozsef Gallai

Laszlo Nagy

Istvan Mudra

Krisztian Mihaly Kovacs

Agnes Mezeine Fudala

A replaceable lighting module in an LED light source is provided. The module improves thermal, mechanical, and electrical connection with an associated fixture. The replaceable module also provides for precise positioning and improves on optical properties of the light distribution.

Replaceable light emitting diode module with high optical precision

A filament coil for an incandescent lamp assembly is provided. The filament coil includes a helical winding extending generally along a longitudinal axis between a first end and a second end. The filament coil further includes a winding having a first pitch ratio at the first and second ends, and a different, second pitch ratio along an intermediate portion located between the first and second ends.

Electric incandescent lamp for vehicle headlights with new filament geometry

An automotive daytime running lamp assembly includes an incandescent light source received within a reflector member. The reflector member is formed as a surface of revolution about a longitudinal axis and has an enlarged, first end, and a narrowed, second end with an opening that receives at least a portion of a light source therethrough along the longitudinal axis. A sleeve is received over a portion of the light source and at least partially extends through the reflector member opening. A cap received over the second end of the reflector member about the opening is fixedly secured to a disk, preferably by fusing or welding the components together. Likewise, the disk and metal sleeve are fixedly secured or fused/welded together so that the light source is fixed relative to the reflector member. A mounting member is provided for secure optical positioning of the assembly in a fixture of the associated automotive vehicle.

Reflector lamp used as daytime running lamp

The invention relates to a glass composition for electric lamps which glass composition comprises SiO.sub.2, Al.sub.2 O.sub.3, Na.sub.2 O, K.sub.2 O, Li.sub.2 O, B.sub.2 O.sub.3, BaO and SrO and optionally CaO, MgO, ZnO, P.sub.2 O.sub.5, Sb.sub.2 O.sub.3, TiO.sub.2, MnO.sub.2, Fe.sub.2 O.sub.3 and/or CeO.sub.2. The composition according to the invention has a B.sub.2 O.sub.3 content of 1 to 2.8 mass %, a SrO content of 2.1 to 4.5 mass %, a BaO content of 3 to 6 mass % and of the components being present optionally, the amount of CaO is maximum 1 mass %, that of MgO is maximum 2.4 mass % and that of ZnO is maximum 3 mass %, on the condition that the total amount of SrO and B.sub.2 O.sub.3 is at least 3.6 mass %, the total amount of CaO and MgO is maximum 2.4 mass % and the total amount of MgO and ZnO is maximum 4.5 mass %.

Glass composition

The subject-matter of the invention is a glass composition, which is suitable for use in electric lamps, comprising SiO.sub.2, Al.sub.2 O.sub.3, Na.sub.2 O, K.sub.2 O, Li.sub.2 O, SrO, B.sub.2 O.sub.3, and optionally CaO, MgO, TiO.sub.2, P.sub.2 O.sub.5, Sb.sub.2 O.sub.3, Fe.sub.2 O.sub.3, MnO.sub.2, ZnO and/or CeO.sub.2. It is characterized in that its SiO.sub.2 content is 65-73 mass %, Al.sub.2 O.sub.3 content is 0.5 to 2.5 mass %, Na.sub.2 O content is 5 to 9 mass %, K.sub.2 O content is 8 to 12 mass %, Li.sub.2 O content is 0.4 to 1.5 mass %, SrO content is 0.5 to 5 mass %, B.sub.2 O.sub.3 content is 2.1 to 5 mass %. Furthermore in addition to the components listed, it optionally also comprises maximum 2.5 mass % CaO, maximum 3.8 mass % MgO, maximum 1 mass % TiO.sub.2, maximum 0.8 mass % P.sub.2 O.sub.5, maximum 0.5 mass % Sb.sub.2 O.sub.3, maximum 0.25 mass % Fe.sub.2 O.sub.3, maximum 0.25 mass % MnO.sub.2, maximum 5 mass % ZnO, and/or maximum 0.8 mass % CeO.sub.2 with the condition that the total amount of SrO, ZnO and MgO in the composition is at least 1.7 mass %. Stems and bulbs made from the above glass composition and used in electric lamps are also subject matter of the invention.

The invention relates to a glass composition for electric lamps comprising SiO.sub.2, Al.sub.2 O.sub.3, Na.sub.2 O, K.sub.2 O, Li.sub.2 O, B.sub.2 O.sub.3, BaO, CaO and MgO, in addition optionally SrO, Sb.sub.2 O.sub.3, MnO.sub.2, Fe.sub.2 O.sub.3, and/or CeO.sub.2. The glass composition according to the invention is characterized in that its B.sub.2 O.sub.3 content is 1 to 5 mass %, K.sub.2 O content is 7.2 to 11 mass %, BaO content is 5.5 to 9 mass % and MgO content is 2.1 to 4 mass %, furthermore in addition to the components listed, it optionally also comprises maximum 3.5 mass % ZnO, maximum 1.2 mass % TiO.sub.2 and maximum 0.8 mass % P.sub.2 O.sub.5 with the condition that the total amount of CaO, MgO and ZnO in the composition is at least 5.8 mass %. Stems and bulbs made of the above glass composition and used in electric lamps are also subject matters of the invention.

Growing community of inventors

Dunakeszi, Hungary

Zoltan Laszlo Bako