There is increasing evidence that both the light we see ( visible light) and the light we don't see (UV light) may have potentially damaging effects on the eye and . As link: a webpage that was born from a personal initiative. Someone sent us the link to this page which . read more. Tuesday 10 April 2012 @ 12:00. Higher luminous flux and improved efficiency mean that LEDs are being increasingly used as light sources in luminaires. UV light in curing processes.