Control of bath water color with light

A control unit for controlling illumination of liquid in a sanitary arrangement comprising:

• a vessel for receiving the liquid therein;
• the vessel comprising a plurality of vessel light sources configured to controllably illuminate the liquid received in the vessel, wherein the plurality of vessel light sources provide light of one or more variable vessel illumination colors;
• and
• a liquid source providing a jet of liquid for supplying the liquid to the vessel;
• the liquid source comprising one or more liquid source light sources configured to controllably illuminate the jet of liquid, wherein the one or more liquid source light sources provide light of a variable liquid source illumination color,
• the control unit comprising:
• (i) a memory for storing executable instructions defining a relationship between the illumination colors of the plurality of vessel light sources and the illumination color of the one or more liquid source light sources;
• (ii) a processor for processing the one or more input signals into one or more output signals, based on the executable instructions;
• and
• (iii) an input-output unit configured to (i) receive one or more input signals from one or more devices selected from the group consisting of:
• one or more vessel sensors one or more liquid source sensors and a user input device;
• and (iii) send one or more output signals to control the plurality of vessel light sources so as to vary, in coordination with the illumination color and/or the intensity of the one or more liquid source light sources, at least one the one or more vessel illumination colors the intensity of the illumination from the plurality of vessel light sources.

A method tor controlling illumination of liquid in a sanitary arrangement comprising:

• a vessel for receiving the liquid therein;
• the vessel comprising a plurality of vessel light sources configured to controllably illuminate the liquid received in the vessel, wherein the plurality of vessel light sources provide light of one or more variable vessel illumination colors;
• and
• a liquid source providing a jet of liquid for supplying the liquid to the vessel;
• the liquid source comprising one or more liquid source light sources configured to controllably illuminate the jet of liquid, wherein the one or more liquid source light sources provide light of a variable liquid source illumination color,
• the method comprising:
• (i) receiving sensing input signals from one or more devices selected from the group consisting of:
• one or more vessel sensors, one or more liquid source sensors, and a user input device;
• (ii) deriving one or more output signals, wherein the one or more output signals control the plurality of vessel light sources so as to vary, in coordination with the illumination color and/or the intensity of the one or more liquid source light sources, at least one of one or more vessel illumination colors and the intensity of the illumination from the plurality of vessel light sources;
• and
• (iii) supplying the one or more output signals to the plurality of vessel light sources of the sanitary arrangement.