penta prism

Penta Prism is a five-sided prism containing two reflecting surfaces at 45 degree to each other, and two refracting faces perpendicular to the entering and emerging beams. Optical Specification MaterialBK7,SF8,SF6 etc or specified by customerDesign index1.5183+/-0.0005 at 546.1nmFocus Length Tolerance+/-2% 0.5%Diameter Tolerance+0/-0.2mm +0/-0.02mmThickness Tolerance+/-0.1mm +/-0.02mmSurface Accuracy2 λ/10Surface Quality80/50 10/5Centration5' 1'Clear Aperture>80% 95%Bevel0.3mm×45° 0.1mm×45°CoatingAccroding to customer's requirement Our Products are fully customisable, your further requests are welcome!