Powell Prism

Powell Prism Prisms Optical Components BK7 Glass Powell Lens PARAMETER: The Powell lens is a quantum leap forward in line generator performance over the simple cylinder lens. A cylinder lens produces a poorly illuminated line, one limited by the non-uniform, Gaussian laser beam. The Powell lens' rounded roof is in fact a complex two-dimensional aspheric curve that generates a tremendous amount of spherical aberration that redistributes the light along the line; decreasing the light in the central area while increasing the light level at the line's ends. The result is a very uniformly illuminated line used in all manner of machine vision applications; from bio-medical and automobile assembly to chocolate chip cookie production. The Powell lens resembles a round prism with a curved roof line. The lens is a laser line generator, stretching a narrow laser beam into a uniformly illuminated straight line . Specification Material Fused silica/ BK7glass Diameter Φ0.8mm, Φ1mm, Φ2mm, Φ3mm, Φ5mm, Φ9mm, Φ10mm,   Φ 15mm or customized size Diameter Tolerance +0.0/-0.05mm / ±0.05mm Range of Fan 3°,5°,10°,15°,20°,30°,45°,53°,60°,70°,75°,85°,90°96°,100°,110°,120° Angle tolerance <3arc min~30arc sec. Beam wide 3mm, 4mm, 5mm or customized size Surface quality 60/40, 40/20, 20/10 scratch and dig Clear aperture >90% Bevel <0.2mm×45° Coating As per customer’s request 

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