Knight Optical (USA)

(001)401-583-7846 https://www.knightoptical.com

Request Information

Polarisers for Cameras

Knight Optical offer a range of Stock Polarisers that can be used in the visible range for use with cameras/photography.

Linear Polarisation can be split into P-Polarised (Light where the electric field is Parallel to the plane of incidence) and S-Polarised (Light where the electric field is Perpendicular to the plane of incidence) light, where a polariser can be used to eliminate one plane of polarisation.

This is done to decrease ‘glare’ (reflections on the surface) when an image is being taken, and increase the contrast. This is used often with cameras to obtain ‘better’ image quality at the expense of an image that appears slightly darker.

Knight Optical also keep stock a UV and NIR range of sheet polarisers, for use with cameras outside of the typical visible range.

These Linear Polarisers are available with single-sheet transmissions in the range of 22-44% and also in a range of sizes.

Typical specs for our stock Polarisers (custom capabilities available upon request):

Material: N-BK7 or Equivalent
Diameter Tolerance: 0.0/-0.25mm
Length/width Tolerance: ±0.5mm (<100mm) ±1mm (100-400mm), nominal (>400mm)
Axis direction: ±2°

Non- glare coatings available on our circular polarisers with the option of left or right handed polarisation. We can also offer acrylic or glass laminations.

See Also
Sheet polarisers (UV & IR ranges)
Circular polarisers (HNCP37)
Crystal polariser
Cube polariser (Polarising Beamsplitters)

Documents & Drawings
Information sheet: How do circular and linear polarisers work?
Information sheet: polarisation
HN32 Sheet Polariser
HN32 Sheet Polariser

HN38 Sheet Polariser
HN38S Sheet Polariser
HN42 Sheet Polariser
HN42HE Sheet Polariser

All our Polarisers are fully inspected on their quality in our ISO 9001:2015 certified, state-of-the-art Metrology laboratory, with our Cary FTIR and Starrett AV300. This allows us to work to the highest QA standards and meet the tolerance specifications on these precision components.

Contact our technical sales team to discover how Knight Optical’s high quality N-BK7 Windows and superior service can improve your instrumentation and supply chain experience.

What’s new

  • 2011273 new spotlight logo

    Polarisers for Cameras

    Products | 8 Jan 2018

    Knight Optical offer a range of Stock Polarisers that can be used in the visible range for use with cameras/photography.

  • 2011273 new spotlight logo

    Beam-Splitters for use within Food Sorting Systems

    Products | 8 Jan 2018

    Optical Sorting Systems are a widely utilized technology used within the food industry; most particularly used in processing harvested foods such as fruits and vegetables, most notably potatoes, and nuts. Optical sorting was designed to help improve product quality, maximize throughput and increase yields.

  • 2011273 new spotlight logo

    UV Fused Silica for Vacuum Windows

    Products | 8 Jan 2018

    Knight Optical can offer UV Fused Silica Windows for Vacuum Applications.

  • 2011273 new spotlight logo

    Knight Optical’s Custom Light Guides

    News | 21 Dec 2017

    Knight Optical’s light guides are available in BK7 or equivalent, Sapphire and UV Fused Silica in an assortment of diameters and thicknesses.

  • 2011273 new spotlight logo

    Absorptive glass neutral density filters

    News | 21 Dec 2017

    Glass Neutral Density filters attenuate light by absorption just like the gelatine neutral density filters.

Search all our content