optical vender wloptical

Powell lens


Powell lens is used to generate straight line. With aspherical curvature on its apex, the output line from powell lenses is even distribution of energy. For comparison, Cylindrical lenses generate gaussian beam profiles with hot-spot centre points and fading edges.

The uniformity of output line is also related with incident wavelength, beam size, divergence, and working distance.

To get even distribution of energy, the apex curvature needs to be slightly modified and optimized for particular laser beam.
Fan Angle 5 deg, 20 deg, 25 deg, 30 deg,45 deg, 60 deg, 70 deg, 90 deg, 110 deg
Material BK7, Fused Silica, SF6
Design Wavelength Custmer design
Dimension Tolerance +0/-0.05mm
Thickness Tolerance +/-0.1mm
Surface Quanlity 40-20 or better
Surface Figure Cyl surface: lambda/2 or better@632.8nm
Center Error ETV better than 0.01mm
Clear Aperture 90% of diameter
Bevel Protective bevel
Coating BBAR or custmer design


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