Abstract: A switching device includes a holder, an operation knob, a ring-like antenna, and a circuit board on which wire connecting the antenna to an external circuit and a detection means (switching portion) for detecting an operation of the knob are disposed. A light source for illuminating a display on the knob is disposed on the circuit board. A transparent lens member disposed on an outer periphery of the knob transmits a light from the light source so as to illuminate the outer periphery of the knob. A slider with a light guide path for a LED is accommodated in the holder so as to be movable forward and rearward integrally with the operation. The antenna is integral with the lens member. The knob and the slider are disposed in a center hole of the lens member.

Abstract: A switch device includes a holder (2), an operation knob (3) that has a display and is held in the holder so as to be movable forward and rearward, a ring-like coil antenna (15), a circuit board (7) on which a detection means for detecting the operation of the operation knob is disposed, LEDs (light source) that are disposed on the circuit board and illuminate the display on the operation knob, and a slider (5) that is stored in the holder 2 so as to be movable forward and rearward integrally with the operation knob and has light guide paths for the LEDs, a center axis of the coil antenna is offset from an operational center line of the operation knob, and the light guide paths of the slider and the display on the operation knob are disposed opposed to a center hole of the coil antenna.

Abstract: A switch device includes a holder (2), an operation knob (3) that has a display and is held in the holder so as to be movable forward and rearward, a ring-like coil antenna (15), a circuit board (7) on which a detection means for detecting the operation of the operation knob is disposed, LEDs (light source) that are disposed on the circuit board and illuminate the display on the operation knob, and a slider (5) that is stored in the holder 2 so as to be movable forward and rearward integrally with the operation knob and has light guide paths for the LEDs, a center axis of the coil antenna is offset from an operational center line of the operation knob, and the light guide paths of the slider and the display on the operation knob are disposed opposed to a center hole of the coil antenna.

Abstract: A switching device includes a holder, an operation knob, a ring-like antenna, and a circuit board on which wire connecting the antenna to an external circuit and a detection means (switching portion) for detecting an operation of the knob are disposed. A light source for illuminating a display on the knob is disposed on the circuit board. A transparent lens member disposed on an outer periphery of the knob transmits a light from the light source so as to illuminate the outer periphery of the knob. A slider with a light guide path for a LED is accommodated in the holder so as to be movable forward and rearward integrally with the operation. The antenna is integral with the lens member. The knob and the slider are disposed in a center hole of the lens member.