Light device for creating a light beam and effects wheel suitable for said light device

A lighting device for creating a light beam comprising a light source and an optical element positioned along an optical axis (80) between said light source and an outlet for said light beam wherein said optical element comprises an at least partially transparent or translucent effects wheel (1), said effects wheel (1) being movable between a first active position in which the effects wheel (1) is positioned along said optical axis (80) and a second inactive position in which the effects wheel (1) is positioned outside said optical axis (80), and actuation means suitable for moving the effects wheel (1) in a back-and-forth movement between its first active position and its second inactive position, said actuation means are suitable for causing the effects wheel (1) to turn about an axis of rotation (10) of said effects wheel and for moving the effects wheel (1) in a back-and-forth movement between its first active position and its second inactive position in a first direction and a second direction which is substantially perpendicular to this first direction relative to the optical axis (80) of the lighting device to make it possible to position various parts of the surface of the effects wheel (1) along the optical axis (80) of the lighting device, characterised in that the actuation means comprise a sliding element (30) fixed on a base (31) of said lighting device and are suitable for causing the effects wheel (1) to perform a back-and-forth movement relative to the optical axis (80) of the lighting device and a pivoting element (20) fixed to said sliding element (30) with the aid of a pivot axis (25) and suitable for causing the effects wheel (1) to pivot about said pivot axis (25) relative to said sliding element (30), wherein the effects wheel (1) is fixed to the pivoting element (20).