Powell Prism
  • Powell Prism
  • Powell Prism
  • Powell Prism

Powell Prism

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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.

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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

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SpecificationPowell Prism

MaterialFused silica/ BK7glass
DiameterΦ0.8mm, Φ1mm, Φ2mm, Φ3mm, Φ5mm, Φ9mm, Φ10mm,   Φ 15mm or customized size
Diameter Tolerance+0.0/-0.05mm / ±0.05mm
Range of Fan3°,5°,10°,15°,20°,30°,45°,53°,60°,70°,75°,85°,90°96°,100°,110°,120°
Angle tolerance<3arc min~30arc sec.
Beam wide3mm, 4mm, 5mm or customized size
Surface quality60/40, 40/20, 20/10 scratch and dig
Clear aperture>90%
Bevel<0.2mm×45°
CoatingAs per customer’s request 


Type List

MaterialDiameterHeightFan angleIncident   spot diameterEnergy   uniformityStraightness   of lineWave lengthSurface   qualityCoatingClear aperture
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm15°1mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm60°1mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm90°1mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm2mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm10°3mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm45°5mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm60°5mm<25% (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm90°5mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
H-K9L(BK7)H-ZF7LA(N-SF6)9mm8mm110°5mm<25%   (central90%   of line.)<   0.1%430-1100nm60-40Uncoated orcustom@405-1100nm≥90%
custom9+0/-0.05mm6.5-8.5±0.05mm5-120±3%deg0.8-5mm<25%   (central90%   of line.)<   0.1%405-1100nm60-40 or40-20Uncoated orcustom@405-1100nm≥90%



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