Acrylic filters These Acrylic Filters are robust and inexpensive. Long-pass filters are available in large sheets. The UV blocking type is often used for protection from photochemical damage. The IR black filters are used to cover IR transmitters or receivers to hide them from view and block unwanted ambient light.
Knight Optical > Filters > Colour filters - Acrylic type > 25 diameter (mm) Only UK and EU customers are charged VAT at 17.5%, customers outside the EU and EU customers based outside the UK who have a valid EU VAT number will not be charged VAT Bulk Discounts! Where (B) appears next to a price below, bulk prices are available, click the (B) button to view! PDF Part No. Thickness (mm) TWL (T=50%) nm Price Qty Buy 420FAP2500 1 420 } Clear UV blocking £7.75 510FAP2500 1 510 } Yellow £7.25 585FAP2500 1 585 } Light red £7.25 620FAP2500 1 620 } Red £7.25 650FAP2500 1 650 } Dark red £7.25 685FAP2500 1 685 } Black IR transmitter £7.25 850FAP2500 1 850 } Black IR transmitter £7.75 Knight Optical > Filters > Colour filters - Acrylic type > 25 diameter (mm)
Specification   Diameter: +0, -0.2mm Length, width: ± 0.5mm (50mm) ± 1mm (400mm) Thickness: ± 0.2mm
Specific requirements We can cut Acrylic Filters to any size at short notice, so if your requirements are not listed please contact us by telephone / fax or email: stockrequirement@knightoptical.co.uk Options available   · Cutting down to special shapes and sizes Technical Data Sheets Are available for each filter on request See also Wratten gelatine-colour filters Polyester-colour filters