Wedge prisms These Wedge Prisms when used as an equal pair and in combination are used for steering a beam of light.  They can also be used for eliminating second surface reflection. The deviation produced by a wedge is given approximately by (n-1) W (where W is the wedge angle) this varies slightly with wavelength.

Knight Optical > Prisms > Wedge prisms 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. Material Diameter (mm) Deviation angle WedgeAngle Price Qty Buy PWK0125 BK7 25 1° 1.94° £33.50 PWK0225 BK7 25 2° 3.88° £33.50 PWK0525 BK7 25 5° 9.65° £33.50 PWK1025 BK7 25 10° 18.97° £36.00 PWF2520-C UV Grade Fused Silica 25 x 20.00° £65.00 Knight Optical > Prisms > Wedge prisms

Specification   Material: BK7 Material data: (see materials section) Diameter: ±0.2mm Deviation Tolerance: ±3 arcmin Surface quality: <40:20

Specific requirements We can manufacture Wedge Prisms 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   · Mounting.   · Edging to smaller diameters, or bespoke sizes.   · AR coating (see coatings).   · Mirror coating (see coatings). See also For larger deviations: Equilateral prisms in inverting and dispersion prisms.