Neutral Density/nd Filter/Beam Splitter 1)types:prism beam splitter/cube/attenuator/interferometer 2)uv/visible/ir band filter Neutral Density/nd Filter/Beam Splitter is a filter splitting the incident light into two parts for transmitted/reflected lightInsensitive to optical wavelengthTypical application: prism beam splitter, beam splitter cube, attenuator, interferometer beam splitteruv, ...