Control device for selecting the color of light emitted by a light source

A control device for controlling hue and saturation of light emitted by a light source, said device comprising:

• a housing,
• a substantially spherical body rotatably received in the housing and having a substantially contiguous surface containing a visible representation of a plurality of selectable combinations of hues and saturations available for said light source,
• a generator for generating at least one selection signal in response to a selection of a combination of a hue and a saturation on said surface, said selection signal comprising said selected hue and saturation,
• a communicator for communicating said selection signal to said light source to control said hue and saturation of said light in accordance with said selected combination of hue and saturation, and
• a sensor for determining said selected combination of hue and saturation,
• wherein said visual representation represents said hues in a first direction along said body surface and represents said saturations in a second direction along said body surface, and said at least one selection is selected by physically manipulating said body according to said first direction and said second direction.