Abstract:
This invention describes a method for manufacturing a conductive connection of a metallic electrode wire (1) and a metallic lead-in wire (3) for a gas discharge lamp (11), preferably a ceramic discharge metal halide lamp. The method includes a bending step, whereby an end portion (4) of the lead-in wire (3) is bended and folded over such that a first section (15) of the end portion (4) at the tip of the lead-in wire (3) overlaps a second section (16) of the end portion (4). Furthermore, the method includes the placement of the electrode wire (1) in-between the first section (15) and the second section (16) of the folded-over end portion (4) of the lead-in wire (3). Finally, a connection is formed between the electrode wire (1) and the lead-in wire (3) by stamping at least parts of the folded-over end portion (4) of the lead-in wire (3) while heating at least a part of the lead-in wire (3) such that the first section (15) and the second section (16) of the folded-over end portion (4) are at least partially touching a portion of the electrode wire (1). Furthermore, the invention describes a gas discharge lamp (11), comprising a conductive connection of a metallic electrode wire (1) and a metallic lead- in wire (3) and a corresponding manufacturing system (50).
Abstract:
An apparatus for assembling lamps that automatically installs lamps into a container includes a lamp arrangement unit including a retaining-stage formed to receive a plurality of lamps, and a lamp press-fitting unit including grippers that holds lamps positioned on the retaining-stage to move lamps, a body press-fitting portion that positions bodies of lamps into a container, and a lead press-fitting portion that positions leads of lamps into the container. A method of assembling lamps uses the apparatus.
Abstract:
The present invention relates to a sealing apparatus of discharge lamps, and more particularly, to a sealing apparatus adapted to be applied at a sealing structure of an enclosure, such as a plasma display and a gas-filling bottle, for permanently sealing the same, which is substantially a multiunit tube, primarily comprising at least an evacuated metal tube and an evacuated alloy tube coupled to the evacuated metal tube by an airtight manner, being adapted to interface with an end of a tube connecting to a glass substrate of an enclosure, such as a plasma display or a discharge lamp.
Abstract:
Disclosed is an improved lamp circuit of a liquid crystal device (LCD) backlight source, comprising a printed circuit board (PCB) for lamp initialization having a control circuit and a first connector thereon; a first lamp connection board disposed between the first lamp connection board and a second lamp connection board and being lamps of the LCD backlight source; a second lamp connection board having a second connector and transformers thereon, the transformers each corresponding to one of the lamps; and a low voltage wire set connected between the first connector on the PCB for lamp initialization and the second connector on the second lamp connection board, wherein a signal issued from the first connector on the PCB for lamp initialization is transmitted through the low voltage wire set to the second connector on the first PCB for lamp initialization and then to a corresponding one of the transformers so that the lamps may be driven to operate. With use of the present invention, number of the used connectors may be reduced and arrangement issue of the high voltage wires may be obviated, making volume of the PCB for lamp initialization allowed to be reduced and cost of the lamp circuit lowered.
Abstract:
A backlight module and a feedback circuit structure thereof are provided. The backlight module comprises a plurality of tubes, a driving module, and the feedback circuit structure. The feedback circuit structure comprises a substrate, a plurality of tube contacts, a plurality of independent feedback contacts and at least a common feedback contact. The tube contacts, the independent feedback contacts and the common feedback contact are disposed on the substrate. Each independent feedback contact is electrically connected to one of the tube contacts. The common feedback contact is electrically connected to one of the independent feedback contacts. An independent feedback can proceed by transmitting feedback signals from each independent feedback contact to a corresponding lamp tube. A common feedback can proceed by first coupling the independent feedback contacts together and then transmitting feedback signals from the common feedback contact to a multiple of lamp tubes.
Abstract:
For manufacturing a high-pressure discharge lamp, a tungsten electrode is welded to a molybdenum foil by bringing a shaft of tungsten electrode into close contact with the molybdenum foil, and by irradiating a laser light, having a metal melting wavelength, to a junction of the molybdenum foil with the tungsten electrode from a location closer to the molybdenum foil to melt both the molybdenum foil and the shaft of the tungsten electrode for bonding.
Abstract:
There is provided a field emission electron source including (a) a substrate at least a surface of which is electrically conductive, (b) at least one conically shaped, electrically conductive emitter, the emitter being formed on the substrate, (c) an electrically insulating layer formed on the substrate for electrically insulating the substrate from a gate electrode, (d) a gate electrode formed on the electrically insulating layer, the gate electrode and the electrically insulating layer being formed with an opening in which the emitter is disposed, (e) a bonding pad formed on the electrically insulating layer and in electrical communication with the gate electrode, (f) a first metal layer formed on the bonding pad, and (g) a second metal layer formed on the first metal layer, the second metal layer having a higher melting point than that of the first metal layer. For instance, the first metal layer is made of Au--Sn alloy, and the second metal layer is made of Au--Si alloy, Au--Ge alloy, Au--K alloy, Al--Si alloy, Au or Al. In accordance with the above mentioned field emission electron source, a bonding pad has a metal surface including Au or Al as a principal component. Hence, even if Al wire or Au wire is used for wire-bonding, there can be obtained sufficiently high bonding strength between a bonding pad and a wire.
Abstract:
An improved image intensifier tube having electrically operative components that include a photocathode having a photoemissive layer, a microchannel plate having a conductive input surface and a conductive output surface, and a vacuum housing for retaining the photocathode, the microchannel plate and a fiber optic inverter in a predetermined arrangement within an evacuated environment, the fiber optic inverter having a phosphor screen for receiving the electrons emitted by the cathode and converting the electrons into a visual image, the improvement therewith comprising a ring assembly disposed in the housing comprising first and second rings, the first ring being a metallized snap ring conductively contacting the input surface of the microchannel plate for providing electrical contact to and retaining the plate within the housing, the second ring being a metallized ceramic ring having a first chamfered metallized surface in electrical contact with the metallized snap ring and a second metallized surface operable to provide an electrical contact external to the housing; and the fiber optic inverter having a unitarily formed and circumferentially extending flange portion extending toward the housing, wherein a sealing material sealingly engages an inner surface of an output flange with the inverter flange portion to form an air impervious vacuum seal, the output flange supported by the inverter flange portion.
Abstract:
There is disclosed an apparatus for welding leads to the electrodes of an ultrahigh voltage mercury vapor lamp. The apparatus comprises a base having guide rails, a clamp mounted on the guide rails, a working part for welding the leads to the electrodes and then cutting the leads, and a lead supplying mechanism for introducing the leads into the working part.
Abstract:
A method of manufacturing a cathode ray tube, in which the positions of the tube envelope and the gun assembly are adjusted so their respectively longitudinal axes coincide, and then fixed against non-axial movement prior to insertion and sealing of the gun assembly into the neck of the envelope, wherein the gun assembly position is fixed by clamping at least three of its connector pins.