• Question: Is there a kind of light filtering device which filters out the entire range of 'invisible' light (infra-red and ultraviolet) whilst retaining the full visible spectrum? Also, same question, but filtering out only the full visible light instead.

    Asked by conn207 to Antonia, Douglas, Hugh, Matt, Tom on 13 Jun 2010 in Categories: .
    • Photo: Matthew Hurley

      Matthew Hurley answered on 13 Jun 2010:


      I don’t think so, but I could be wrong. All light radiation consists of waves and as you go down the spectrum you have to put more in front of the wave to stop it. For example, you can put your hand in front of a light to stop the wave but x-rays will go straight through. So you can’t for example stop gamma radiation and keep uv light for example.

Comments