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Powell Lens
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Powell lenses, also known as laser line generators, convert incoming laser beams into uniform straight lines. They effectively eliminate the central hot spot and dimmed edges typical of Gaussian beams, delivering outstanding line uniformity, stability and linearity. These optics are widely applied in machine vision fields including biomedicine, automotive assembly and food processing.
Parameters
Specification
Material
N-BK7, N-SF57, N-SF2
Diameter
9mm
Diameter Tolerance +0.00/-0.06mm Fan Angle 10°, 20°, 30°, 35°, 45°, 54°, 55°, 70°, 75°, 80°, 90°, 110° Fan Angle Tolerance +/- 1° Wavelength Range 405nm-808nm Input Beam diameter 0.5mm, 0.8mm, 1mm, 2mm, 4mm, 5mm, or other Surface Irregularity λ/4@632nm Surface Quality 80/50, 60/40 Line Uniformity 10% variation over central 80% of line at 632nm Line Straightness 0.1% over central 80% of line at 632nm AR Coating Range As per customer’s request How Its Special Structure Delivers Uniform Laser Lines？
Controlled Optical Aberration Design
The precision-polished acylindrical curved roof facet intentionally generates calibrated spherical aberration for incoming collimated Gaussian laser beams. Unlike standard cylindrical lenses that produce uneven lines with prominent central hot spots and dim edges, this proprietary prism surface suppresses excessive central irradiance and compensates low light intensity at both line edges.
Flat-Top Uniform Line Output
This exclusive two-dimensional aspheric prism geometry evenly redistributes laser beam energy across the full projection fan. Instead of dim-edged Gaussian lines from ordinary cylindrical optics, it delivers straight, consistent flat-top laser lines with balanced brightness throughout the effective working region.Advantages of Powell Lenses
Powell lenses stand out for creating highly uniform flat-top laser lines without obvious central hot spots, a critical flaw of regular cylindrical lenses.
Superior to DOEs and other beam homogenizers, they maintain steady optical performance and support flexible integration into various laser devices.
Systems relying on fixed, stable light intensity profiles benefit greatly from this optic: uniform linear laser output delivers consistent processing results for laser scribing, marking and material machining, and ensures precise detection for vision inspection & industrial alignment tasks.
Powell Lens
Still deciding? Get samples first, Contact US !
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