Modifying a NASA LED tricolour

[Graham_Wright]

You are right about cut off... it looks bad on the photo but in practice (from about 100 meters away) the cut off seems okay.

What was strange though is when looking at it from 100 meters away as you walk around the marina. As other masts and shrouds get in the way you do appear to get twinkles of the wrong colour just briefly... it's odd.

I think the cutoff looks great, better than the Lopolight. Maybe green to port is because it was upside down?

The twinkle could be due to diffraction around the rigging lines. Maybe selective according to spectrum content?

A side benefit of the reverse polarity inspiration is that you can't have both sets on at the same time.

 

[Martin_J]

Apoloiges - It was I that mentioned 'polycarbonate'.
The original poster referred to 'Acrylic' tubing.