I presented some of my works as well as detailled explanations of insect vision in comparison to our human vision, also using a video presentation made for the forthcoming "Photosynthesis" exhibit at Hortus Botanicus, Amsterdam. A lively discussion followed, as to most people this topic was hardly ever heard of.
Insects (butterflies, Bees, ...) and animals (birds, fish, degus,..), at least some specialized ones, are able to see in ultraviolet (UV) light. Bees for instance can see Green and Blue and UV, but no RED, but butterflies and birds can see Red, Green and Blue and UV, so both can see what we humans cannot see - UV. To make that visible for us humans, I developed an optical mapping method, which allows to simulate, how we would see the world, if we had such special receptive eyes.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos