How we look like if we were seeing UV rays ?

We see only a small fraction of the spectrum of electromagnetic radiation.

There are radio beams, X-ray (X-ray), gamma ray, infrared, UV ...

All this makes visible light, from blue to red, very narrow space.

Some insects see part of UV rays, see what we do not see in roses, for example.

The photographer 'Thomas Leverett' used a special filter (AstroDon UVenus filter) and several cameras with a CMOS detector, then went to the streets of Brooklyn, New York, and shot video of people under ultraviolet radiation.

The exciting part is also giving people a sunscreen. The camera captures the UV rays from the sun that are reflected from the skin.

The purpose of the sunscreen originally is to absorbs these rays so as not to reach the skin and Since there is no ultraviolet radiation reflected from the solar condenser, the skin appears with black color , although it appears white under visible light as u will see in this video

Small amounts of UV helps to form vitamin D in the skin.

But if exposed to a large proportion of these rays will be infected with sunburn, destroys vitamin A in the skin, and may be cancer.

UVB is less dangerous than B, but it's still dangerous. Prolonged exposure indirectly leads to cancer (through the formation of cancer-causing compounds in the body) and destroys collagen in the skin.

source : http://www.slate.com/blogs/bad_astronomy/2014/08/14/portraits_in_uv_thomas_leveritt_video_of_faces_in_ultraviolet.html