Abstract: The present invention relates to a method for making a global LED lamp (10) having a transparent globe (14) and a base (12) for connecting to a lamp socket. By wrapping the base (12) in expansive foam tape (38) of Compriband type or similar, prior to inserting it in a neck shaped portion (16) of the globe (14), automatic alignment of the base (12) in the globe neck (16) may be obtained. Further, soft metal strips (36) may be wrapped about the tape (38) prior to wrapping the tape (38) about the base (12). The tape (38) acts as an inflatable cushion, which presses the metal strips (36) towards the base (12) and the globe (14). Improved heat transfer between the globe (14) and the base (12) may thus be obtained.

Abstract: The present invention relates to a method for making a global LED lamp (10) having a transparent globe (14) and a base (12) for connecting to a lamp socket. By wrapping the base (12) in expansive foam tape (38) of Compriband type or similar, prior to inserting it in a neck shaped portion (16) of the globe (14), automatic alignment of the base (12) in the globe neck (16) may be obtained. Further, soft metal strips (36) may be wrapped about the tape (38) prior to wrapping the tape (38) about the base (12). The tape (38) acts as an inflatable cushion, which presses the metal strips (36) towards the base (12) and the globe (14). Improved heat transfer between the globe (14) and the base (12) may thus be obtained.

Abstract: A discharge vessel (10) closed in a gastight manner has a cavity (11) enclosing a discharge space provided with an ionizable filling. A coil (20) with a winding (21) of an electric conductor and an assembly (30) of a heat conductor (31) and one or several elongate cores (32) of soft-magnetic material are accommodated in the cavity. The cores (32) are arranged along a longitudinal axis (33) of the heat conductor (31) in one or several recesses (34) of the heat conductor which issue into a circumferential surface (36) of the assembly (30). The heat conductor (31) occupies at least half the circumference in a cross-section perpendicular to the longitudinal axis (33) of the assembly (30). The construction of the lamp according to the invention renders possible lamp operation at higher lamp powers also without the use of a heat pipe.

Abstract: The electric reflector lamp has a molded reflector body having an optical axis. A neck is present around the axis. A light source is disposed in the reflector body, enveloped by a lamp vessel which has a seal. A metal mounting member through which the seal extends is present in the neck. The lamp has a ceramic body which surrounds the seal to lower the temperature during operation thereof. A mirroring disk may be present between the lamp vessel and the mounting member to reflect radiation away from the seal.

Abstract: The electrodeless low pressure discharge lamp has a lamp vessel (1) which is fused to the flared portion (6) of a flared tube (5) which extends into the lamp vessel. A power coupler (20) is demountably secured to the lamp vessel and comprises a soft magnetic core (21), surrounded by an electric coil (22), and a heat conducting element (23) in the core. This element is a solid rod, the coil (22) is present in a region (8) adjacent the flared portion (6) of the flared tube (5), and an elastic material couples the rod (23) laterally to the core (21). The construction of the lamp avoids the use of an expensive heat pipe as a heat conducting element.

Abstract: The electrodeless low-pressure discharge lamp has a lamp vessel (1) having a cavity (2) at an end portion (3) thereof. An electric coil (4) surrounding a plastic sleeve (5), wherein a liquid-filled tubular container (7) surrounded by a soft-magnetic core (6) is present, is accommodated in the cavity (2). The plastic sleeve (5) is substantially filled up with an elastic polymer. Additionally, the tube (5) may be enveloped by an elastic polymer (9). The elastic polymer ensures a relatively low operating temperature of the members inside the cavity (4).

Abstract: The electrodeless low pressure discharge lamp has a lamp vessel (1) having a cavity (3) at an end portion (2) thereof. An electric coil (4) surrounding a plastic tube (5), wherein a liquid filled tubular container (7) surrounded by a soft-magnetic core (6) is present, is accommodated in the cavity (3). The tubular container (7) is at a portion outside the cavity (3) rigidly secured in a recess (82) present in a protrusion (81) present at a flange (8). A mounting member (9) bearing the plastic tube (5) and the lamp vessel (1) is securable to the flange (8).