Operating element for use in electric hob, has sensor material at short side regions and long side region of operating element body reaching from upper side to lower side of body, and/or covering entire side regions

摘要

The element (11) has a light conductor channel including an inlet at a lower side (17) of an operating element body, and an outlet at an upper side of the body. An electrically conductive, opaque sensor material (21) is provided at the upper side. The sensor element forms a capacitive contact switch with the element. The sensor material at short side regions (23b, 23d) and a long side region (23c) of the body reaches from the upper side to the lower side, and/or covers the entire side regions. The material is made of thermoplastic elastomer. The body is made of transparent plastic. Independent claims are also included for the following: (1) an operating device (2) an electrical device.