Abstract: A lamp that utilizes a lamp base locking ring to secure a lamp base shell to a lamp. A hollow light transmitting body terminates in a neck that includes threads and a keyway. A lamp base locking ring having an indentation that extends into to the keyway is disposed around the circumference of the neck. A lamp base shell is threaded onto the threads of the neck. The lamp base shell is mechanically fastened to the lamp base locking to secure the lamp base shell to hollow light transmitting body.

Abstract: A connector system for a rod-shaped two-ended gas discharge lamp (12) with bases (20) disposed on the connector ends (16) of the discharge lamp (12) and with insert sockets (22) for receiving the bases (20) in a lamp housing (14). Each base (20) is provided with a contact pin (26) linked with a lamp electrode (36) with an insulating cylinder (28) surrounding the contact pin (26) while leaving a lateral connector opening (46) free. Each insert socket (22) is provided with a contact element (58) that can be detachably engaged with the corresponding contact pin (26) through the connector opening (46) of the pertaining base (20) and can be impinged upon with a high voltage. The insert socket is further provided with an insulating body (60) that carries the contact element (58) and covers the connector opening (46) in the connected state.

Abstract: The electric lamp comprises a lamp vessel (1) having an end portion (3) which is surrounded by a shell portion (22) of a lamp cap (20) having screw thread. The end portion (3) has transversal indents (6). A plastic coupling member (30) having arms (33) bearing a cam (31) on their inner surface (34) and being undulated at their outer surface (35) is present in the lamp cap (20). The cams (31) are located in a respective indent (6). The shell portion (22) of the lamp cap (20) is screwed onto the coupling member (30). In the electric lamp, the lamp cap (20) is fitted to the lamp vessel (1) by assembling. The current conductors (7, 8) too may be connected to the contacts (21) of the lamp cap (20) by assembling, thus avoiding time and energy-consuming thermal processes.

Abstract: In a discharge lamp device, the arc tube body is configured by welding and integrating shroud glass with an arc tube so as to enclose a discharging portion, and a rearward elongating portion of the arc tube that elongates in the rear of the shroud glass is inserted and held into an opening of an insulating plug which is made of synthetic resin. A UV blocking film is formed on the outer surface of the rearward elongating portion of the arc tube. UV components of leakage light from the rearward elongating portion are cut off, and the amount of ultraviolet rays to which the resin layer in the opening is exposed is reduced. The UV blocking film is in the opening, and hence cannot be seen through a front lens.

Abstract: There is provided a low pressure discharge lamp, which comprises a discharge tube, a lamp base holding the discharge tube, and a base cap (6) for covering the lamp base. The base cap (6) also provides mechanical support to the discharge tube. The base cap (6) comprises tube openings (10) for receiving end parts of the discharge tube. The base cap (6) further comprises an adhesive space (14) adjacent to a tube opening (10), the adhesive space containing an amount of adhesive. The adhesive space (14) is open toward the discharge tube. The adhesive contained in the adhesive space (14) adheres to an end part of the discharge tube and thereby fixes the discharge tube to the base cap (6). The base cap comprises at least one upper transversal member (31) and at least one lower transversal member (32). The transversal members (31,32) extend substantially in a plane parallel to a plane of the tube opening (10) adjacent to the adhesive space (14).

Abstract: An assembly (10) for a lamp. The assembly 10 includes a light source (12) having a center chamber (14) and opposite ends (16, 18), arrayed along a longitudinal axis (19). The ends (16, 18) are cylindrical in cross-section. A tubular shroud (20) surrounds the light source (12) and is coaxial with the longitudinal axis (19). The light source (12) is mounted within the shroud (20) by spring clips (26) one of which is mounted at either end of the shroud. The spring clips each include a base (28) lying in a first plane and having an aperture (30), for example, a star-shaped aperture, centrally located in the base. The apertures (30) in the two spring clips frictionally engage one of the ends (16, 18) of the light source (12). Each of the spring clips (26) has a U-shaped projection (32) at and end (33) of the base (26). The U-shaped projection comprises first and second upstanding walls (34, 36) joined by a first lip (38) that extends in a second plane and is fitted over the wall of the shroud (20).

Abstract: A compact self-ballasted fluorescent lamp includes a double-spiral arc tube formed by winding a glass tube to its both ends around a spiral axis, and sealing electrodes each having a filament coil at the ends of the glass tube, and a holding member that has a closed bottom and holds the arc tube. The holding member has, at its end wall, insertion openings through which the ends of the glass tube are inserted. The ends of the glass tube are inserted to such positions that enable the filament coils to be positioned within the holding member, and the minimum distance L, in the insertion direction of the ends of the glass tube, between the filament coil and the edge of the insertion opening of the holding member is 6 mm.

Abstract: A lamp for an automobile includes a lamp (10) and a base portion (30) to which the lamp (10) is mounted, in which the lamp (10) includes: a bulb (20); lead wires (11) extending from a base of the bulb (20); and a pinch seal portion (22) formed in the base of the bulb (20) for fixing the lead wires (11), and the base portion (30) includes a resin adapter (40) having a pair of adapter half bodies (40A, 40B) adapted to be placed onto the pinch seal portion (22) from left and right side portions of the pinch seal portion (22) in a transverse direction and mounted on the pinch seal portion (22).

Abstract: A lamp assembly and a method for securing a base on the lamp that electrically connect a side lead wire to the base shell and that also secure the base to the lamp without using either solder or adhesive. Welding efficiency is optimized for the side lead wire to base shell connection. A metal screw base having base screw threads is screwed onto an outer jacket having a threaded seal with seal screw threads and with at least one lead wire extending out of a bottom of the seal being electrically and mechanically connected to a flag assembly being at least a wire in a close-fitted electrically nonconductive sleeve.

Abstract: An electric lamp (2) with a lamp cap (12) suitable for contacting an external electric contact element (28). The lamp cap comprises contacting means (16) comprising a first contact part (18) connected to a second contact part (20) via a spring (24), thus enabling the second contact part (20) to move transversely with respect to the first contact part (18) and/or the lamp cap (12). Optionally, the first contact part (18) is kept in a fixed position with respect to the lamp cap (12) through the spring force of a further spring (22).

Abstract: A lamp assembly (10) includes a body (12) having a concave reflecting surface (16) that opens toward a first or open end (18) and a neck (22) at a second end includes an opening (24). A light source (30) is received in the body adjacent the reflecting surface and has a seal or pinch region (44) which extends into the neck. A mounting clip (80) includes a plate (82) that engages the outer surface of the neck. First and second legs (84, 86) of the mounting clip engage the pinch region via teeth (88), while arms (90, 92) engage an internal surface (94) of the neck.

Abstract: This invention concerns a compact fluorescent lamp with a double helix shaped discharge tube in which the two strands of the helix are constituted by two helix shaped tube portions. These tube portions define a central axis of the discharge tube. The double helix formed by the discharge tube has a central section and a first end section. These sections are defined along the central axis, and the lamp base for receiving ends of the tube portions is disposed at the first end section. An inner diameter of the central section of the helix is larger than an inner diameter of the first end section. The invention further relates to a method and apparatus for manufacturing coiled shaped discharge tubes, in particular the above described discharge tube of the discharge lamp. A radially segmented molding core is used for manufacturing the discharge tube.

Abstract: An assembly (10) for a lamp. The assembly 10 includes a light source (12) having a center chamber (14) and opposite ends (16, 18), arrayed along a longitudinal axis (19). The ends (16, 18) are cylindrical in cross-section. A tubular shroud (20) surrounds the light source (12) and is coaxial with the longitudinal axis (19). The light source (12) is mounted within the shroud (20) by spring clips (26) one of which is mounted at either end of the shroud. The spring clips each include a base (28) lying in a first plane and having an aperture (30), for example, a star-shaped aperture, centrally located in the base. The apertures (30) in the two spring clips frictionally engage one of the ends (16, 18) of the light source (12). Each of the spring clips (26) has a U-shaped projection (32) at and end (33) of the base (26). The U-shaped projection comprises first and second upstanding walls (34, 36) joined by a first lip (38) that extends in a second plane and is fitted over the wall of the shroud (20).

Abstract: A lamp with a reflector in which a lamp is fixed firmly inside a reflector by fixing the lamp inside the reflector without using an adhesive. The lamp with a reflector includes a lamp having a base at one end and a reflector including, at one end of its reflecting surface, a hole into which the base of the lamp is inserted and an opening portion at the other end. The base is maintained in the hole, so that the lamp is positioned inside the reflector. The lamp is fixed inside the reflector by fitting a hollow metal fitting into the hole, inserting the base into the hollow metal fitting, and then combining the base and the hollow metal fitting into one component by welding. The position of the lamp inside the reflector can be adjusted easily and no process for drying an adhesive is required.

Abstract: A foamable copolymer based coupling is provided for securely affixing a light emitting glass lamp in a metal base to form a lamp assembly. The copolymer is preferably selected from ethylene vinyl acetate, ethylene methyl acrylate, and combinations thereof. The foamable coupling may be placed around one end of the glass lamp or in the lamp base before the lamp and base are matingly engaged. The assembled lamp is then heated to a temperature, which causes the foamable coupling to expand and securely affix the lamp in the base.

Abstract: A structure of fully enveloped miniature lamp bulb for lamp strings suitable for mass production and having any of varied appearances is disclosed. The lamp bulb has two electrode pins with a predetermined distance therebetween and being connected in the glass body thereof to a light emitting tungsten filament, parts of the electrode pins are extended out of the bottom of the glass body for connecting to a conductor pair. A transparent cover having any of various kinds of modeling which are made separately with dies is provided with an assembling hole of a size mating with that of the lamp bulb and extending inwardly for a suitable depth from an end thereof; the miniature lamp bulb connected with the conductors is placed in the assembling hole by assistance of a positioning block, the connecting area is sealed with adhesive agent to complete assembling of the structure.

Abstract: A lamp base in combination with a low pressure discharge lamp is provided. The low pressure discharge lamp comprises a glass envelope which has an end portion and an axis. A stem is melted into the end portion of the envelope in a gas-tight manner in order to form a seal region. The stem is mounted with an electrode and includes a current in-lead which is connected to the electrode. The lamp base comprises a metallic base shell which is fitted to the seal region. A resilient insert is disposed substantially in the base shell. The resilient insert embraces the seal region ant least partly, and fits resiliently to an interior surface of the base shell. The insert has means suitable for positioning the lamp base in cooperation with further means formed on the surface of the seal region.

Abstract: An electric lamp, in particular a motor vehicle auxiliary light lamp, and a method for producing such a lam. The base of the lamp comprises an annular metal part (5) or resilient design for holding the lamp vessel (1), and a plastic part (6) provided with at least one hollow contact pin (7, 8). A supply lead (3, 4) projecting from the lamp vessel (1) is threaded into the hollow contact pin (7, 8) and welded to the latter such that the metal part (5) is under mechanical stress. In this way, backlash-free plug-and-socket connections are produced between the lamp vessel (1) and the metal part (5) or between the metal part (5) and the plastic part (6).

Abstract: Disclosed is a halogen lamp supporting device including a base having accommodating holes into which fitting end plates of a halogen lamp are respectively fitted and slits which are defined at opposite sides of each fitting slot, and elastic supporting members each having supporting strips which are tightly fitted around an associated end of the halogen lamp and fixing levers which are integrally formed with one of the supporting strips and fitted into the slits of the base to support the halogen lamp, the accommodating holes being defined in the base at halogen lamp supporting positions, respectively, so that the fitting end plate and the elastic supporting member can be simultaneously accommodated in each accommodating hole, and the slits, into which the fixing levers are to be fitted, being defined on bottom surfaces of the accommodating holes.

Abstract: A light bulb assembly with reduced tolerance for engaging a light bulb to a light engine. The light bulb has a first positioning portion. The light bulb assembly has a light machine and a light bulb frame. The light machine has a second positioning portion and an engaging portion for fixing the light bulb in a determined position when the first positioning portion of the light bulb abuts the second positioning portion. The light bulb frame is relatively fixed to the light machine for supporting the light bulb; the light bulb frame has a leaning portion for leaning on the first positioning portion of the light bulb, and an elastic pressure portion for applying three-dimensional pressure on the light bulb for moving toward the determined position.

Abstract: A filament lamp with bases in which the pinch seal areas are not damaged and no adhesive is used is achieved by the base of a filament lamp with bases having, in its front area, a holding part for holding a pinch seal area and a first opening into which an outer lead pin is inserted, and in its rear area, a second opening into which a plate-shaped terminal is inserted. Furthermore, the base has another opening, between the first opening and the second opening, which is used to weld the outer lead pin to plate-shaped terminal in a direction which orthogonally intersects the lengthwise direction of the base and orthogonally intersects the wider crimped foot surface of the pinch seal area. The plate-shaped terminal has a size such that it does not fall out of the second opening of the base. The terminal is welded to the outer lead pin such that its flat surface is parallel to the pinch seal area.

Abstract: The invention relates to an optical radiator, especially for ultraviolet or infrared radiation, with a lamp bulb socketed without cement on one end, from which at least two connecting wires are brought through pinches, one at the top and the other at the bottom of the lamp bulb, the first connecting wire being affixed at the upper end of the lamp bulb to a stiff support bow, and the lower end of the stiff support bow being brought as a terminal pin through a first bore in a lamp base and is fastened to the latter by an anti-extraction lock. The invention is addressed to the problem of offering an optical radiator which can be made quickly and at low cost from a minimal number of parts. The problem is solved in that the second connecting wire at the bottom end of the lamp bulb is carried loosely through a second bore in the lamp base.

Abstract: An electric lamp with a base (6), which is structurally subdivided into an upper part (7) that retains the bulb and a substantially circular-cylindrical lower part (5) for external fastening, which lower part protrudes past the upper part, and the protruding portion (13) is embodied as a detent mechanism for the external fastening. The detent mechanism in each case includes an inward-facing detent protrusion (20) located on the outside, which is an integral component of the lower part, and a metal spring (24), located opposite the detent protrusion and cooperating with it, that is secured in the lower part.

Abstract: The invention relates to an electric lamp with a base on one side, having a base (4) which has a holder (5) for a lamp vessel (2), the holder (5) being provided with a stop (5a) for one end of the lamp vessel (2), and the base (4) having spring elements (3) for fixing the lamp vessel (2) in the base (4). According to the invention, the lamp vessel (2) is equipped with an annular groove (2a), and the spring elements (3) are designed such that they act on the lamp vessel (2) in the area of the annular groove (2a), so that the end of the lamp vessel (2) sits with a press fit on the stop (5a).

Abstract: The wedge base bulb includes a bulb body having a colored glass bulb and a press-sealed portion. Further, a tubular insulation collar is mounted to cover press-sealed portion. Bulb body is formed in a process in that a molding section of a glass tube including a color-developing compound or a color-developing element is heat-melted under a reducing atmosphere in a predetermined temperature region, placed in a mold and expanded in the mold, and also develops color with colloid generated by the heat-melting. As a result, a wedge base bulb developed a color and chromaticity satisfying a predetermined standard can be provided at a lower cost.

Abstract: Connector for a discharge lamp and ballast assembly, as well as a lamp assembly including the connector. The connector is a conductive ribbon that includes a plurality of pinch or wedge-shaped wire slots for receiving lead wires from the discharge lamp and from the power supply. The connector is made of a material and is suitably shaped to provide flexibility to accommodate thermal expansion and contraction of the lamp, yet provide for proper positioning of the lamp in a reflector housing or the like. Disassembly of the connections and replacement of the lamp is facilitated and does not result in permanent damage to the lamp.

Abstract: The electric lamp has a light source (20) in an envelope (21). The light source (20) is secured in a body (1) by means of an insulator body (40) in which current connectors (43) are integrated and which is present in a socket (10) of the reflector lamp. The socket (10) is mechanically connected to the neck portion (5) of the body (1). The integrated insulator/current connector body (40, 43) enables electrical contacting, fixation, and mechanical adjustment of the light source (20) in the body (1). For reliable electrical contacting, the current connector (43) includes cylindrical part (60) with scraping edges (63).

Abstract: The lamp has a borosilicate lens bonded to a gas tight envelope containing a protective gas. The envelope contains a high gloss reflective coating on an inner surface and has a bulb mounted on a pair of support posts. The bulb contains a coiled tungsten filament within a halogen gas tight envelope. The filament is axially connected on each side to a tungsten wire, a molybdenum foil and a protruding lead wire. Each lead wire penetrates the gas tight bulb envelope to an integral tulip shaped end portion of the bulb, each end portion enclosed by a brass end cap. A bore in the end cap permits an electrical conductor to be soldered to the protruding lead wire.

Abstract: A lamp bulb (1) made from glass is sealed at one end by a pinch (2). A base (5) is fastened on the pinch (2) by means of a metal spring (6). The base (5) has a holder (7) loosely adapted to the pinch (2). The metal spring (6; 26) is bent in a U-shaped fashion and comprises a base part (11) and two limbs (12, 13) which embrace the pinch, the fastening of the base (5) being accomplished by virtue of the fact that one limb (12) is aligned essentially parallel to the longitudinal axis, but simultaneously has a transverse extent accessible to spring forces, the transverse extent of this limb being stressed by the holder (7) of the base.

Abstract: The invention relates to a lighting system with a high-pressure discharge lamp and a control unit (W, FS, C1, W) for the high-pressure discharge lamp (1), where the lamp base (10) has at least two housing parts (10a, 10b) which are connected to one another by a releasable closure (22). The first housing part (10a) has fastening means (24) for the at least one lamp vessel (11). The high-voltage part (TR) of the ignition device (TR, FS, C1) is accommodated in the first housing part (10a), whilst the second housing part (10b) is provided with the electrical connections (20) for the high-pressure discharge lamp (1) and preferably contains the remaining components (FS, C1) of the ignition device and the voltage converter (W) of the control unit.

Abstract: A fluorescent lamp in which a connecting terminals of a lighting circuit board and lead wires of a fluorescent tube easily can be connected. The lamp includes a fluorescent tube, a holder holding the fluorescent tube, a lighting circuit board provided with a lighting circuit for lighting the fluorescent tube, and a case connected to the holder and housing the lighting circuit board. At the end portion of the lighting circuit board, V-shaped or Y-shaped cut-outs, which widen toward an outer side, are formed. In the vicinity of the inner narrow portion of the cut-outs, the connecting terminals connected to the lighting circuit are provided. On a side wall formed on the holder opposite to the fluorescent tube, V-shaped or Y-shaped cut-outs, which widen as the distance from said fluorescent tube increases, are provided, and the broad portion of the cut-outs of the holder and the broad portion of the cut-outs of the lighting circuit board are arranged facing each other.

Abstract: A lamp securing device for securing a lamp (120) to a housing (110) including a retainer (130) including a peripheral portion that bounds an opening (300) of sufficient size for receiving a neck (170) of the lamp (120). The retainer (130) includes a plurality of flanges (310, 320) along the opening (300) which engage the neck (170) of the lamp (120) to securely attach the retainer (130) to the lamp (120).

Abstract: To eliminate the need for a cap provided only for coloring the light of a wedge-base bulb, and to eliminate the requirement for a multi-colored front lens of a vehicle identification lamp, a colored coating is formed on the surface of a glass bulb of a wedge-base bulb. The bulb is dipped in a color coating and a rib and/or groove is provided between the bulb and a base portion of the wedge-base bulb to prevent the coating from adhering to the base portion where terminals are disposed.

Abstract: A fixture comprised of a base and a tensioning member integrated within the base provides a flexible tensioning force to retain a light bulb within the fixture. The light bulb can be a standard bulb, or a threadless bulb specifically designed for the fixture of the present invention.

Abstract: The electric lamp is provided with a cap (3) having a metal shell (8). The shell (8) comprises a cylindrical part (44) which is coupled to a conical part (42) via a rounding (43). By choosing the angle &bgr; between the second part (52) of the conical part (42) and the cylindrical part (44) smaller than the angle &agr;between the first part (51) of the conical part (42) and the cylindrical part (44), the axial strength of the metal shell (8) is increased.

Abstract: An improved lamp structure for lamp strings comprising a lamp bulb, a base, a socket and two conductors is disclosed. The base is provided therein with a receiving recess and has a lower portion thereof partially opened, so that when the lamp bulb is placed in the base, the lower end the lamp bulb is partially exposed. The socket is provided therein with pairs of ribs; they can forcedly press the base and the lamp bulb to fix their positions, and form an engaging groove to receive the metallic pins of the conductors. By this arrangement, the metallic pins of the conductors can electrically contact respectively two metallic wires of the lamp bulb. Therefore, the longitudinal size of the elements of the whole structure can be shortened to reduce cost of material in production, and thereby safety of the products can be elevated.

Abstract: A lamp, whether HID or other, can be conveniently held by with slip ring that compresses flexible arms against the lamp end. The arms are formed to conform on and inner side with and exterior portion of the lamp. On their exterior side of the arms are formed to mate in compression with a slip ring. By tapering the arms with respect the slip ring, and increasing pressure can be induced that flexes the arms to hold the lamp in place. The slip ring can be further formed to bind the slip ring with three clamp arms, and thereby resist disengagement of the structure once assembly is completed. The result is a securely held lamp accurately held by inexpensive parts adaptable to rapid machine assembly.

Abstract: An electric lamp, especially energy saving lamp, comprising a discharge tube, a lamp head or socket extending into a rear cover in which an electronic ballast for operating a discharge tube is arranged at least partly, said lamp head having a first and second contact connected to the ballast, and the lamp head comprises a screw plastic part covered at the external surface with a layer of conductive metal film providing the first contact, a contact-point plastic part connected to the end of the screw plastic part, and a metal contact-point fixed at the center of the rear end of the contact-point plastic part providing the second contact.

Abstract: The invention relates to an optical radiator, especially for ultraviolet or infrared radiation, with a lamp bulb socketed without cement on one end, from which at least two connecting wires are brought through pinches, one at the top and the other at the bottom of the lamp bulb, the first connecting wire being affixed at the upper end of the lamp bulb to a stiff support bow, and the lower end of the stiff support bow being brought as a terminal pin through a first bore in a lamp base and is fastened to the latter by an anti-extraction lock. The invention is addressed to the problem of offering an optical radiator which can be made quickly and at low cost from a minimal number of parts. The problem is solved in that the second connecting wire at the bottom end of the lamp bulb is carried loosely through a second bore in the lamp base.

Abstract: An electric discharge lamp apparatus which incorporates an arc tube 10 structured such that an enclosed glass bulb 12 of an arc tube body 11 is enclosed in an ultraviolet-ray shielding globe 20 and having a front end which is supported by a metal lead support 36 forwards extending from an insulating plug 30 provided with a focusing ring 34 and made of synthetic resin and which has a structure that a rear end of the globe 20 of the arc tube 10 is supported by a metal support member 50 secured to the insulating plug 30, wherein the metal support member 50 is constituted by a metal base plate 51 secured to the insulating plug 30 and forming a reference plane f2 running parallel to the focusing ring 34 on the front surface of the insulating plug and a metal vertically-holding member 60 (a slide plate 61 and an arc-tube holding band 71) integrally joined to the metal base plate 51 and arranged to vertically hold an electrically-discharge axis L of the held arc tube 10 with respect to reference plane f2 of the meta

Abstract: The wedge base bulb includes a bulb body having a colored glass bulb and a press-sealed portion. Further, a tubular insulation collar is mounted to cover press-sealed portion. Bulb body is formed in a process in that a molding section of a glass tube including a color-developing compound or a color-developing element is heat-melted under a reducing atmosphere in a predetermined temperature region, placed in a mold and expanded in the mold, and also develops color with colloid generated by the heat-melting. As a result, a wedge base bulb developed a color and chromaticity satisfying a predetermined standard can be provided at a lower cost.

Abstract: An electric discharge lamp apparatus incorporates: a metal lead support 36 which projects over the front surface of an insulating plug 30 made of synthetic resin, which supports the leading end of an arc tube 10 and which serves as a passage for electric power arranged to be supplied to the arc tube 10; and an insulating sleeve 38 which is made of ceramics formed into a pipe shape and through which the lead support 36 is inserted, wherein a predetermined gap S2 is provided between the insulating sleeve 38 and the lead support 36. Thus, insertion of the lead support 36 into the insulating sleeve 38 can easily be performed, and a dimension error of the insulating sleeve 38 can be absorbed. Since a bent portions 36a is provided for a portion of the lead support 36 into which the insulating sleeve is inserted, the insulating sleeve 38 and the lead support 36 can hermetically integrated with each other. Thus, rattle of the insulating sleeve 38 with respect to the lead support 36 can be prevented.

Abstract: The invention relates to a base for compact fluorescent lamp comprising a body and a cap which are fixed to each other along an outside connection surface, a discharge tube is fixed in the cap and metal pins ensuring a releasable electrical contact are fixed in the body Electrode inleads of the discharge tube are connected to the metal pins, and a connection hollow ensuring an also releasable mechanical joint is formed in the body Extensions as elongations of the wall of the connection hollow are formed inside the base where at least one opening is formed in the extensions and some of the electrode inleads are connected to the metal pins through the opening. Another aspect of the invention is that the extensions are formed inside the base as an elongation of the wall of the connection hollow, and some of the electrode inleads are passed through between the extensions and then are connected to the metal pins.

Abstract: A lamp holding has a first conductor forming an exterior surface of the lamp holding, the first conductor having a first opening formed therein to slidably receive a first lead of a lamp and a second conductor having a second opening formed therein to slidably receive a second lead of the lamp.

Abstract: An insulating plug for an electric discharge lamp apparatus, includes: a front portion includes an outer cylindrical portion and an inner cylindrical portion, the inner cylindrical portion having a substantially unique thickness and an opening to receive an arc tube of an electric discharge lamp; a focusing ring extending from the outer cylindrical portion of the front portion; and a rear portion having a rear-end cylindrical portion and a center portion. The front portion, the focusing ring and the rear portion are integrally molded by injecting a synthetic resin into a mold from a gate of the mold, the gate facing the rear-end cylindrical portion of the rear porition of the insulating plug. Furthermore, the electric discharge lamp apparatus in which an arc tube is inserted into the opening of the insulating plug described above.

Abstract: The present invention relates to a compact low-pressure discharge lamp comprising a discharge vessel (14) with electrodes and supply leads (30), and a base (12) assembled from a cap (16), housing (18) and mounting plate (24) with a ballast arrangement. The mounting plate (24) with the ballast arrangement is installed in the interior of the base housing (30) and has terminals (26) for the electric connection of the supply leads (30) to the mounting plate (24). In this case, the supply leads (30) are pressed against the electric terminals (26) of the mounting plate (24) by means of a spring element (28).

Abstract: A molded lamp base receives a press seal of a lamp. Internal walls of the base define a cavity open at one end to receive the press seal portion of the lamp. The side walls have a thickness dimension and a width dimension substantially conforming to the peripheral dimensions of the press seal portion. At least one raised bead extends inwardly from the cavity side wall and is dimensioned for a friction fit with the periphery of the lamp to hold the lamp securely in base. In one embodiment, the beads are located in semi-circular recesses disposed about the exhaust tube portion of the lamp while in another embodiment, the beads are spaced outwardly therefrom.

Abstract: Disclosed is a lamp having a lamp capsule consisting of a glass bulb containing filaments sealed therein with a substantially flat pinch-sealed portion being formed integrally at one end of the glass bulb, and being held at the pinch-sealed portion by a retaining plate; the lamp comprising a plurality of holding pieces for chucking the pinch-sealed portion, formed on the retaining plate; and thick-wall portions formed at that end of the pinch-sealed portion which constitutes the boundary with the glass bulb, except for the crosswise middle part of the pinch-sealed portion, so that the thick-wall portions may be brought into contact with the holding pieces.

Abstract: Proposed is a gaseous-discharge lamp, in particular for motor-vehicle headlamps, comprising a burner vessel of glass or the like having at least two electrodes, the burner vessel being provided with a lamp base that includes the electrical terminals and that is insertable into a lamp base socket. Arranged in the lamp base is an electronic ballast unit that supplies the lamp with the necessary ignition and maintaining voltage. By accomodating the balast unit in the lamp base, one can achieve a small-volume gaseous-discharge lamp having short high-voltage leads i an integrated type of construction, making it possible to keep the ignition voltage to a minimum.