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Wedge Prisms

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  • Wedge prisms are used as beamsteering elements in optical system. By combining two wedges of equal power in near contact, and independently rotating them, a ray can be steered in any direction within the narrow cone. The equation to determine the deviation angle is: θd = arcsin(nsinθw)- θw Where θd is the deviation angle, θw is the wedge angle, and n is the nominal index at the appropriate wavelength..

 

Specifications

Material: Crown, Flint, UVFS
Dimension Tolerance: +0.00/-0.20mm
Thin Edge of wedge: 3.0mm
Surface Flatness: λ/8@633nm
Surface quality: 20/10
Clear Aperture: 90% of central dimension
Bevel: 0.3mmx45°
Coating: Single layer MgF2