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Colour Filters - Glass Type - Short-pass

Solid Colour Glass filters are useful for selective wavelength absorption, and achieve much higher blocking densities than dichroics. The filters listed below are of the band-pass type and have uniform spectral transmission properties over their entire aperture. A wide range of short-pass Schott Colour Glass filters are available with circular filters of 25mm dia and square 50x50mm filters stocked in the options below.

Specifications:

Material: Schott Colour Glass
Diameter: +0.0 / -0.25 mm
Length / Width: ± 0.25 mm
Thickness: ± 0.20 mm
Surface Quality: <60-40 scratch/dig
Flatness: <2.5λ over 90% test area
Parrallelism: <3 arcmin

 

Note

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 (Circles) >> Special AR coating >> Cutting down or edged to special shapes and sizes

 

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Knight Optical (UK) Ltd,
Roebuck Business Park, Harrietsham, Kent, ME17 1AB, England
Phone: +44 (0)1622 859444 • Fax: +44 (0)1622 859555
E-mail: info@knightoptical.co.uk