Neutral Density

Neutral density filters reduce transmission uniformly over a specific portion of the spectrum. They are defined according to their Optical Density (OD). The higher the OD, the lower the transmission. These filters can be stacked to create filters with custom ODs. They are useful when trying to image extremely bright subjects or when trying to separate subject matter from a background by reducing depth of field.
Read more...

Features

  • Available in various optical densities
  • UV/VIS/NIR
  • Used with monochrome or color cameras operating in the visible and/or Near-IR spectrums
  • Includes identical male and female filter threads on either end for stacking
  • The sum of the optical density of two or more filters stacked together equals the total density
  • Ni filters are unique in maintaining exceptional spectral neutrality over the full visible-to-near-IR range while greatly limiting undesirable back reflections over that same range
  • Excellent parallelism, optical flatness and surface quality
  • Custom densities available upon request
  • Useful for: attenuating bright light; exposure control of images; system protection for low power laser applications

Mount & size options

  • Threaded Mount, C/CS Mount, Slip Mount, Unmounted
  • Threaded Mount Sizes: M22.5 – M105
  • Custom shapes and sizes; mounted or unmounted versions available

There are no products matching your filter criteria.
Please change your filters to see more product.

Vision Light Tech

Vision Light Tech supplies a broad range of solutions in light, lenses and filters for the industrial machine vision worldwide. VLT is renowned for their speciality in this niche market. The organisation distinguishes itself from others by a solution focussed approach. We also customize standard products to suit individual customer requirements.