Inside current conductor for halogen-filled incandescent lamps especially lamps manufactured with curved tube enclosure and halogen-filled incandescent lamp made with the inside current conductor

摘要

In an internal current conductor for halogen filled incandescent lamps at least two spiralized members (1, 2) and an elongated part (3) forming a series assembly (4) are applied, wherein the series assembly (4) is at least partly made of a wire of lower electric resistance than that of the wire of the incandescent body. In a halogen-filled incandescent lamp, comprising a curved tube enclosure (5) made of a translucent material and enclosing a gas filling, an incandescent body (6) made by spiralization from a tungsten wire of circular cross-section, the incandescent body (6) being arranged within the enclosure (5), means for energizing (8, 9) the incandescent body (6) and two inside current conductors (4) for connecting the incandescent body with the energizing means (8, 9). Each internal current conductor consists of a first and a second spiralized member (1, 2) and an elongated part (3) forming together a series assembly (4), the series assembly (4) being connected via the second spiralized member (2) with the incandescent body (6) and via the first spiralized member (1) with the energizing means (8, 9), the series assembly (4) being at least partly made of a wire having cross-sectional area exceeding that of the tungsten wire forming the incandescent body (6).