A sensor system is configured to control one or more operational functions of one or more components. The sensor system includes one or more protuberances, a first channel defined by the one or more protuberances, a second channel defined by the one or more protuberances, and one or more sensing devices configured to detect one or more actions of an object in relation to one or more of the one or more protuberances, the first channel, or the second channel. The one or more actions of the object are associated with the one or more operational functions of the one or more components.

A scale for an optical position measuring device includes a carrier substrate, a first reflector layer arranged on the carrier substrate, a transparent spacer layer arranged on the reflector layer, a structured second reflector layer arranged on the spacer layer, and a protection layer with a defined thickness arranged on the top side of the scale over the second reflector layer. The protection layer is further arranged on the side surfaces of the scale.

A scale for an optical position measuring device includes a carrier substrate, a first reflector layer arranged on the carrier substrate, a transparent spacer layer arranged on the reflector layer, a structured second reflector layer arranged on the spacer layer, and a protection layer with a defined thickness arranged on the top side of the scale over the second reflector layer. The protection layer is further arranged on the side surfaces of the scale.

A button sensing device includes: at least one sensor disposed at a first position relative to a button and including an inclined angle with the plane where the button is located; a system module electrically connected to the at least one sensor to receive sensing information from the at least one sensor and sending a control signal based on the sensing information; and a controller receiving the control signal and configured to trigger the button according to the control signal.

A button sensing device includes: at least one sensor disposed at a first position relative to a button and including an inclined angle with the plane where the button is located; a system module electrically connected to the at least one sensor to receive sensing information from the at least one sensor and sending a control signal based on the sensing information; and a controller receiving the control signal and configured to trigger the button according to the control signal.