| 摘要 |
Described is an optical waveguide for an optical lighting arrangement comprising a freely rotatable tube (6) arranged at the light exit end of the optical waveguide (2). The optical waveguide (2) is characterized in that the tube (6) comprises a non-magnetic material, wherein the optical waveguide (2) has a hand switch for controlling the radiation flux of the optical lighting arrangement, which is formed by a magnetically activatable switch (27) which is disposed between the optical waveguide (2) and the tube (6) and which is fixed on the outer peripheral surface of the optical waveguide (2) and spaced from the inside surface of the tube (6), and an annular magnet (26) which is disposed on the tube (6) and which bears snugly against the tube (6) and is displaceable axially thereon. Two thin wires or stranded conductors (41, 42) extend from the magnetically activatable switch (27) and extend in the interior of the optical waveguide (2) but outside the liquid thereof to the light entry end. |
