Industry Patents

A lighting control operating unit generating digital adjusting commands which are transmitted to a processing unit via a data link includes several control elements, including key buttons, slide controls and/or rotary controls, which are disposed at the upper side of a housing. At least one dual encoder is provided in a control panel of the lighting control operating unit allowing users to enter input values. The dual encoder presents a first shaft rotatably mounted in a housing, and a second shaft mounted in the housing so as to be coaxially rotatable, and corresponding first and second rotation signal generators Both shafts include actuating elements transmitting adjusting movements. The actuating elements are a rotary disk and/or a rotary swivel configured to be coaxially turned in opposite directions.