Powell Prism

Powell Prism


Optical Components

BK7 Glass Powell Lens


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




Fused silica/ BK7glass


Φ0.8mm, Φ1mm, Φ2mm, Φ3mm, Φ5mm, Φ9mm, Φ10mm, Φ 15mm or customized size

Diameter Tolerance

+0.0/-0.05mm / ±0.05mm

Range of Fan


Angle tolerance

Beam wide

3mm, 4mm, 5mm or customized size

Surface quality

60/40, 40/20, 20/10 scratch and dig

Clear aperture





As per customer’s request

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