I was approached by Coastal Light Charts to design a controller for lighting nautical charts. My client makes framed charts, for example of areas people sail in, to hang in their homes or club. He wanted to have the lighthouses and buoys light up and flash in the correct patterns and colours.
After some discussion and experimentation with different LEDs, light pipes, and ideas for the electronics, we settled on a design using fibre optics and custom RGB LED boards. Although most lights are white, RGB allowed for flexibility. The client was very happy with the design which has now been used in many charts.