Knight Optical extends stock of color glass type long-pass filters

Date Announced: 26 Jul 2017

Knight Optical are pleased to annouce an extended range of longpass filters for sale from their webssite

Colour Glass filters are useful for selective wavelength absorption and therefore achieve high out of band blocking. Colour glass type Longpass filters have very low transmission in short wavelengths and high transmission in the long wavelengths. These filters are used in range of spectral selection scientific instrument applications.

See Capabilities - Colour glass filters

Our long-pass stock range of color glass filters have uniform spectral transmission properties over their entire aperture. A wide range of Colour Glass Longpass Filters are available as 50x50mm and 25mm diameter filters, stocked in the options below.

Stock colour glass filters are available to purchase directly from our website. To enquire about our customer colour glass capabilities, or to place a custom order, please contact our technical sales team.

Material:	Colour glass
Diameter:	+0.0 / -0.20 mm
Length / width:	± 0.20 mm
Thickness:	± 0.20 mm
Surface quality:
Parallelism:

Note:-
Wavelength cut-on listed in table is transition cut-on wavelength (T=Tmax/2)
Wavelength cut-off listed in table is transition cut-off wavelength (T=Tmax/2)
Wavelength listed in table is transition wavelength (T=Tmax/2) for long-pass and short-pass filters, and peak for band-pass filters.

Options available:

Mounting of diameters and squares.

Antireflective coatings can be applied to one or both faces for improved transmission.

Cutting down or edged to special shapes and sizes at short notice.

Available in sets, supplied in a wooden storage box for research and laboratory use.

Filter set technical PDFs

Filter set pdf showing all colourglass longpass filters from 280-395nm
Filter set pdf showing all colourglass longpass filters from 420-495nm
Filter set pdf showing all colourglass longpass filters from 515-590nm
Filter set pdf showing all colourglass longpass filters from 610-695nm
Filter set pdf showing all colourglass longpass filters from 715-1000nm

Our long pass color filters are checked for quality 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 sheet polarizers and superior service can improve your instrumentation and supply chain experience.

UK, Europe, Asia & RoW: E-Mail info@knightoptical.co.uk Tel +44 (0)1622 859444

USA & Canada: E-Mail usasales@knightoptical.com Tel +001 401-583-7846