Abstract: A fluorescent lamp device comprises an oblate section type fluorescent lamp having an oblate cross section and provided with a luminous surface illuminating in one direction and with a back plate and a lighting circuit means attached to the back plate and adapted to light the fluorescent lamp. The fluorescent lamp is electrically connected to and integrally assembled with the lighting means including the lighting circuit board by the bendable leads and the terminal pieces capable of having various shapes. In addition, a fluorescent lamp device comprises a fluorescent lamp body which includes a front plate, a back plate and a spacer which is provided between the front plate and the back plate and which defines the oblate sectioned bulb of the fluorescent lamp.

Abstract: A retrofit unit for replacing conventional incandescent light bulbs with fluorescent, high pressure sodium, metal halide or similar light bulbs, tubes or sources. A hardwire ballast is used in conjunction with conventional light fixtures, including recessed fixtures, to permit the retrofit conversion from incandescent light sources.

Abstract: A discharge lamp has a lamp assembly including a discharge lamp unit with a pair of lamp leads extending therefrom, and a base assembly including a pair of base leads electrically connected to the pair of lamp leads and mechanically supporting the lamp unit in position with respect to the base assembly. The base assembly comprises a hollow base structure of electrically insulating material molded in one piece with a partition dividing the interior thereof into a pair of completely isolated spaces. Electrically connected to the base leads, a pair of sheet metal conductors are received with clearances in the respective isolated spaces in order to preclude the possibility of an electric discharge taking place between the pair of conductors within the base structure.

Abstract: An attachment assembly for each end of an ultraviolet light lamp positioned in a quartz sleeve protruding through a mounting nipple on opposite ends of an apparatus such as a water treatment unit. A compression nut is threadly mounted on each of the mounting nipples and has an internal cylindrical bore with an O-ring for receiving and positioning the end of the quartz sleeve. An elastic electrical socket assembly is operably connected to each end of the ultraviolet light lamp. A retainer is detachably mounted on the compression nut and has means for retaining the electrical socket assembly in position. A compression spring is provided in one of the retainers to resiliently urge the electrical socket assemblies into engagement with the ends of the lamp continuously and securely.

Abstract: In a fluorescent light fixture having a panel for supporting thereon an electrical socket assembly for holding a fluorescent tube, a simple, mechanical, manually-effected interlock for securing the socket assembly in a tube-receiving and supporting mode on the panel. The panel itself is formed with a non-rectangular cut-out zone for receiving an upwardly extending wall of the socket assembly inserted upwardly through the cut-out zone, and a base of the socket assembly being then shiftable arcuately to effect interengaging intercoupling between a laterally-opening slot in the base of the socket assembly and a projecting edge of the panel bounding the cut-out zone formed therein. A dimple-like deformation formed in the panel on an underside thereof defines a detent to deter inadvertent mechanical separation of the socket assembly from the panel.

Abstract: Lighting string having two electrical wires, a number of mounting blocks spaced from each other along the electrical wires for accommodating respective parts of the electrical wires, and in each mounting block two terminal plates for electrically contacting the electrical wires and for accommodating a tubular electric lamp. The lighting string may be made by first placing the mounting blocks over the electrical wires and then placing the terminal plates in the mounting blocks, as result of which contact with the electrical wires is effected. Also the mounting blocks may be formed around the terminal plates. Then the lighting string is produced by proceeding on an electrical cable, in which the electrical wires are incorporated and providing the mounting blocks having integrated terminal plates on the electrical cable. The lighting string may be used in lighting devices and in display devices, such as advertising letter boxes.

Abstract: The low-pressure discharge lamp has a tubular lamp vessel provided at its both ends with a lamp cap having a pair of contact pins. Each lamp cap is fixed in an adapter having one central contact pin electrically connected to at least one of the pair of contact pins of the lamp cap. A lamp of ordinary construction when provided with the adaptor is thus suitable for use in a space containing explosive gas.

Abstract: A lighting fixture is disclosed with a U-shaped channel member having a first end and a second end including a web and first and second upstanding side walls with a first end joined to said web and a second end, and preferably including a pair of spaced-apart unitary socket members mounted at the first and second ends of the channel member for removably mounting a lamp therebetween, each of the unitary socket members including a base member between the first and second upstanding side walls of the channel member and normally located at a position spanning the second ends of the first and second upstanding side walls of the channel member, the base members including mounting means for mounting a lamp receptacle above the upstanding side walls, a pair of downturned side walls extending from the base member along the upstanding side walls of the channel member within the channel member, an end wall extending from the base member and located between the upstanding side walls at the first and second ends of the ch

Abstract: There is provided a fluorescent lamp having a fluorescent tube and a connecting element for connection to a source of current. The connecting element includes a mains plug having contact plugs electrically connected to the fluorescent tube and projecting on one side of the mains plug. The area of the connecting element facing the contact plugs is in the shape of a housing for the fluorescent tube having an oblong shape with the mains plug located on the longitudinal side thereof.

Abstract: A low pressure gas discharge lamp includes a bulb with a pair of closed ends, and a pair of bases attached to the ends of the bulb, respectively. Each base has a cylindrical base body into which the end of bulb is inserted, and a pair of receiving terminals electrically connected to an electrode in the bulb and protruding from the base body in a direction perpendicular to the axis of the bulb. Each terminal has a pair of mutually parallel flat faces and is secured to the base body such that these flat faces are located on planes perpendicular to the axis of the bulb, and a part of at least one flat face is in contact with a bottom wall of the base body.

Abstract: Lighting apparatus for improving the efficiency of a fluorescent fixture. A high efficiency reflector having tube hangers depending therefrom is mounted into fixture housing. Substitute fluorescent tubes, one for each original pair of tubes, are mounted under reflectors and held by hangers. A device including a plug and a substitute socket is used to tap electricity from an original fixture socket and to conduct it to the substitute tube through the substitute socket which is itself supported by the substitute tube.

Abstract: A low-pressure discharge lamp includes a bulb and a pair of bases attached to the end portions of the bulb, respectively. Each base has a base body fixed to the end of the bulb and a pair of terminals attached to the periphery of the base body. The terminals have contact portions which project from the periphery of the base body and include contact surfaces extending parallel to the axis of the bulb and facing the same direction. The contact surfaces are located so as to contact a common plane.

Abstract: A connector for discharge electrodes of luminous gas tubes includes an insulative barrel receiving a power cable at one end for attachment to a fixed end of a resilient contact member. The opposite end of the barrel is open and threaded, to receive the crimped and headed tip of a gas tube having electrode conductors projecting therefrom. A lock element is applied to the crimped portion of the gas tube end and is axially captured thereon so that following insertion of the tube tip and lock element into the barrel open end, a cap surrounding the gas tube engages the threads of the barrel to radially and axially retain the tube tip within the barrel interior with its electrode conductors firmly biased against a displaceable end of the resilient contact member.

Abstract: A fluorescent lighting fixture or luminaire in which the conventional number of light source is de-lamped to a lesser number and which provides acceptable light levels and distribution of light. A flexible reflector of specular reflective material is installed in the fixture above the replacement lamp. The reflector material by virtue of its flexiblity will assume a generally parabolic configuration to re-direct the light from the fixture. Thus, with the reflector, two-lamp luminaires will de-lamp to one-lamp and four-lamp luminaires may be de-lamped to two-lamps, and so on. The invention also provides an electrical connector for positioning a new lamp at a central location and which connector is engageable in the existing lamp holders.

Abstract: A wholly enclosed armature for fluorescent tubes, which is designed for outdoor use, has a transparent, cylindrically tubular cover member (18) which supports at the one end a permanent coupling housing (23) and at the opposite end supports an easily detechable end cover (22). A fluorescent tube-carrying support arrangement (24) is axially displaceably received in the cover member (18) between the coupling housing (23) and the end cover (22). The inner end of the support arrangement (24) is provided with guide members (42,43) of a first type which cooperate with guide members (47-49) of an equivalent second type on the coupling member. The support arrangement and the coupling member are provided with their respective contact members which form a current connection between the support arrangement and the coupling member and which are relatively moveable inwardly into and outwardly from engagement with each other guided by the said guide members (42,43; 47-49).

Abstract: The tubular electric incandescent lamp has at its ends (7,8) metal hoods (4), to which the current supply conductors (9,10) are secured. The metal hoods (4) are arranged in an insulator housing (5,6) provided with an opening (13), through which a contact member (11,12) extends to the exterior. The contact member (11,12) has a bifurcate part (19) which grips around the metal hood (4) behind a collar (17) at the said hood. The insulator housings (5,6) lock the contact members (11,12) against radial displacement. By the collar (17) and the insulator housing (6), the contact member (12) is undetachably connected to the metal hood (4). The lamp can be constructed so that the contact members (11,12) are displaceable in longitudinal direction between two extreme positions.

Abstract: A mounting device for a fluorescent lamp includes a socket which is swingably supported in a socket holder for being movable between an inclined position and an operational position and is provided with a socket body and a locking member extending in axial direction rearwardly away from the connection of the lamp to the socket body. The socket holder has an opening through which the socket body projects with its locking member in order to encompass the respective inner surface of the opening in a pinless hinge-like member. For limiting the swiveling movement of the socket, the socket body is provided with a stop member which cooperates with the innerside of the holder.

Abstract: A cover module (1) of an adaptor for single-based fluorescent lamps is prded with a cylindrical element, having a cross-sectionally rectangular recess (2) therein, for receiving the base of the lamp. Spring elements (5) for gripping the base are formed on opposing interior sidewalls of the recess (2). The lower ends (6) of the spring elements (5) are integrally formed with the cover module (1) and the play or travel of each of their upper ends (7) is limited by a stop (10) formed on the cover module (1). Between the upper (7) and lower (6) ends, detents (8) are formed on the spring elements (5) forcibly engage behind, in the direction of lamp insertion, cam surfaces (12) on the lamp base. The force, with which the lamp base is held in the cover module (1), is selectable within a certain range, dependent upon the spacing of the play-limiting stops (10), thus assuring a secure mechanical engagement of the lamp in the cover module socket.

Abstract: A lighting system is described which consists of a few basic units which can essentially be combined together in any desired sequence and which consist of spot lamps and also of stiff and flexible connecting members. Each spot lamp has two oppositely disposed sockets into which plug connectors provided at the ends of the connecting members can be inserted so that the spot lights can be joined in series or in arrays. The connecting members can also cooperate in defining the power connections.