General Electric Company

Tungsram Reszvenytarsasag

Sandor Lukacs

Jozsef Fulop

Istvan Wursching

Jozsef Tokes

Erzsebet Cserteg

Peter Lucz

Zoltan Vamos

Andras Czeiler

Gabor T Szabo

Ferenc Papp

Joseph C Borowiec

Peter Mora

Andrew P Blau

Akos Ocsovai

Ferenc Lantos

Kalman Antal

Peter Vigh

Tamas Palotai

William Wayne Akins

Istvan Kallai

Gyorgy Bakdos

Tibor Lakatos

Miklos Keri

Bela Balogh

Erno Fejes

Fetenc Papp

Atilla Biro

Edit Katona

Helen Rapp

Istvan Wurschung

A lamp assembly provides both instant light through use of an incandescent/halogen lamp source and an energy saving type light provided by a compact fluorescent lamp source. Both light sources are enclosed within a common envelope or outer bulb. The sensor member monitors a temperature of the cathode and mercury reservoir of the compact fluorescent lamp source in order to determine when to terminate power to the incandescent lamp source.

Fast warm-up and instant light energy saving lamp assembly

A lamp including a primary light source and a secondary light source, and a secondary light source control circuit configured to provide an operating voltage to the secondary light source. The secondary light source control circuit including a resistance element having an initial resistance which changes in response to being exposed to a temperature above a predetermined threshold. The secondary light source control circuit including a charging branch resistance-capacitance time constant that is configured to change with a change in the resistance element resistance.

Bright-from-the-start compact fluorescent lamp with lumen-shift elimination circuitry

A compact fluorescent lamp includes a discharge tube such as a spiral discharge tube having a wall forming a discharge chamber between cathodes at first and second ends thereof. At least one auxiliary amalgam assembly is disposed in the discharge chamber at an intermediate region disposed between the first and second ends. The auxiliary amalgam assembly is secured at a location spaced from the inner wall of the discharge chamber.

Positioning of auxiliary amalgam

A glass extension (,) with a cavity (,) for an amalgam (,) is added to an exhaust tube (,) or a flare (,) of a fluorescent lamp. The mouth (,) of the cavity (32) is provided with a bimetal valve having a cover portion (,) to close the cavity (,) when the lamp is cold and to open the cavity when the lamp is hot. The amalgam (,) is a metallic amalgam of, for example, mercury or other know suitable materials for establishing a metallic vapor equilibrium during operation of a discharge lamp. The amalgam holder helps to maintain optimum mercury vapor equilibrium at start-up, and to reduce the effects of mercury vapor starvation resulting from off-times.

Fluorescent lamp extension tube amalgam holder

The invention relates to a single-ended discharge lamp the light source of which is a discharge tube consisting of at least two tube legs, the said single-ended discharge lamp has a cap part for mechanical and electrical connection to a lampholder, the cap part is, on its side being closer to the discharge tubes, bordered by a separator wall separating it from the space of the light source. According to the invention, cavities (24) accepting the ends of the tube legs are formed in the separator wall (20), and openings (26) for passing inleads are formed at the bottom of the cavities (24) at the places of current feedthroughs.

Heat insulation for single-ended discharge lamp

Plastic housing and base construction, especially for compact fluorescent lamps and operating units thereof comprising a housing (1) which is a cup-like body and a base (2) having a metal base shell (26) and at least one metal central (3) or end contact part (4, 5). The base shell (26) is electrically insulated from the central (3) or end contact parts (4, 5). The base (2) also includes a plastic insert body (20) which is open at its upper end and closed at least partially at its lower end. The diameters of the plastic insert body (20) decrease in at least one step and it has a cylindrical or slightly conical mantle portion (24) in the region of its upper end. The base shell (26) includes a thread-free opening portion (27) the inner diameter of which fits to the mantle portion (24) of and is pulled over and fixed to the plastic insert body (20). The metal central contact part (3) or each end contact part (4, 5) is fixed to the lower end of the insert body (20) which has a rim (22) at its upper end for connecting to the housing (1). The housing in turn has a connection end (11) for receiving the insert body (20).

Plastic housing and base construction especially for compact fluorescent

The fixing component has a groove for accepting an adhesive material, which groove is fixed to the housing of the light source and extends along a circle, The essential feature of the invention is that in the wall (8) of the groove (6) being at the side closer to the housing (1a), openings (9) are formed that enable the adhesive material (4) to flow to the surface of the housing (1a).

Light source including a fixing component for joining a lamp envelope to

A compact fluorescent lamp having improved warm-up characteristics is provided. The lamp includes a sealed glass envelope formed from U-shaped tubes each having a pair of substantially parallel leg sections closed at one end and a transversely extending bridging section joining the other end of the leg sections. Adjacent leg sections of adjacent tubes are joined by connecting conduits which complete a convoluted and elongate discharge path between a pair of electrodes. A main amalgam located within in a sealed stem at a closed end of an interior leg section for controlling mercury vapor pressure during a discharge period except for a starting period thereof. Auxiliary amalgams are attached to electrode support structures extending from the closed ends of the exterior leg sections for emitting mercury vapor during the starting period. Furthermore, an additional auxiliary amalgam is attached to a support structure extending from a sealed stem at a closed end of an interior leg section and in the discharge path at a substantially equal distance from each of the electrodes for emitting mercury vapor during the starting period.

Amalgam containing compact fluorescent lamp with improved warm-up

The luminescent material(s) optionally composed of more color components are suspended in the solution of active agent(s) and treated with 0.5 to 10% by weight of glass forming acid or a mixture thereof, preferably boric acid or phosphoric acid calculated on the weight of the luminescent material. Then a solution comprising 1 to 15% by weight of aliphatic amines calculated on the weight of the luminescent materials is added and the mixture thus obtained is homogenized.

Process of surface treating luminescent materials

An apparatus for electrostatic spray coating of the insides of light transmissive lamp envelopes, comprising a stand, a turntable mounted on the stand for receiving pairs of the envelopes, gas burners for preheating the envelopes and burning in the sprayed coating layer and serving as an electrode to ground the envelopes, a dust generator for preparing and homogenizing, with a rotary chopper, the particles of the dust to be sprayed on the envelopes as the coating layer, spray guns with dust conduits connected to an exhaust system for collecting the particles of dust not bound in the layer and made free during spraying. The apparatus further comprises an electrostatic voltage source connected to the nozzles of the spray guns for negatively charging the dust particles so that the particles are electrostatically attracted to the envelopes, and elements to allow cleaning of the apparatus.

Apparatus for electrostatic spraying of the insides of lamp envelopes

Growing community of inventors

Budapest, Hungary

Sandor Lukacs