| 摘要 |
<p>The invention relates to a control element (1), which combines three functions: a rotary function, a pressure function and/or a joystick function. This is achieved both by the advantageous combination of a rotary switch (3) and pushbutton (4) to form a rotary-pressure actuator (3, 4) and by the incorporation of an optical joystick (2), which facilitates a switching action together with at least two photoelectric barriers (A, B) lying on more than two spatial axes, thus obviating the need for mechanical contacts.</p> |
