A screen-based operating system includes a housing having a screen accommodated therein and a rotary ring rotatably mounted to the housing. A first part of the rotary ring is mounted axially into the housing and a remaining second part of the rotary ring extends out of the housing and above the screen.

The present invention relates to an incremental magnetic encoder (10) defining an encoder axis (X) and comprising a fixed body and a movable body.

One of the bodies, called the first body (21), comprises a first support (33) comprising N arranged magnetic elements.

The other body, called second body (22), comprises: a second support (41) comprising K*M magnetic elements arranged inhomogeneously along the direction of encoding (C1, C2) opposite the N magnetic elements, the K*M magnetic elements forming M groups of K magnetic elements, initial elements of the M different groups being spaced apart along the direction of encoding (C1, C2) by a homogeneous pitch P1, the K1 magnetic elements of each group being spaced apart from the initial magnetic element of said group by variable pitches Pi; at least one magnetic detector arranged opposite the first support (33).

In the present invention, magnets are mounted in a button part of a vanity lamp exposed toward a vehicle interior and a portion of a sun visor facing the button part to provide both a repulsive force and an attractive force so that a sun visor returns to a predetermined location with respect to the button part when the sun visor is folded, thereby preventing a phenomenon in which the vanity lamp is not turned off and a surface of the sun visor is damaged when the sun visor is folded and conveniently using the sun visor. Particularly, in the present invention, the vanity lamp can be turned off through only a simple manipulation of folding the sun visor without separate power by using permanent magnets as the magnets.

In the present invention, magnets are mounted in a button part of a vanity lamp exposed toward a vehicle interior and a portion of a sun visor facing the button part to provide both a repulsive force and an attractive force so that a sun visor returns to a predetermined location with respect to the button part when the sun visor is folded, thereby preventing a phenomenon in which the vanity lamp is not turned off and a surface of the sun visor is damaged when the sun visor is folded and conveniently using the sun visor. Particularly, in the present invention, the vanity lamp can be turned off through only a simple manipulation of folding the sun visor without separate power by using permanent magnets as the magnets.