I recently bought these glasses: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=280635493612 which are simply spectacular with regard to blocking UV radiation.
So I shot some pictures with and without these glasses to show you what difference does it make. (and the difference is much greater in real life)
(see https://budgetlightforum.com/t/-/1751 for reference)
First, a control shot, courtesy of my iTP R5:
Now some shots with the glasses in several configurations.
Notice the amount of blue/puprle light in the left picture of each set, the lack of it in the middle picture, and the lack of fluorescence in the right picture.
Left to right: Taiwan 3W 380nm without glasses on camera lens, with glasses on camera lens, with glasses on flashlight
Left to right: Tank007 TK-566 1W 365nm without glasses on camera lens, with glasses on camera lens, with glasses on flashlight