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Powell Lens
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Powell lenses are optical marking prisms that allow laser beams to pass through and be optimally drawn into a straight line with uniform optical density, good stability, and good linearity, which can eliminate the central hot spot and fading edge distribution of Gaussian beams, which is suitable for various biomedical, automotive assembly, food processing and other machine vision applications.
Powell Lenses Specifications
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
The Advantages and Applications of Powell Lenses
The main advantage of Powell lenses is that they can generate a uniform laser beam without the need for additional optical devices or complex beam forming technique, which makes Powell lenses cost-effective solutions for many laser applications.
The uniform and straight laser beams of Powell lenses making them commonly used in laser cutting, welding, and drilling applications, they are also used in scientific and industrial applications that require precise laser beam control， such as laser scriber, laser marking positioning, positioning of building markings, laser scanning system, machine vision, etc.
Powell Lens
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