6mm Optical K9 Glass Powell Lenses with Full Fan Angle

Item Number:Y_P20B8X3901

  • Material: BK7 glass
  • Dimension: 6.00mm
  • Surface Accuracy: lambda/8
  • Size Tolerance: +/-0.01mm
  • Angle Tolerance: +/-30 sec
  • Coating: AR, HR, HT, customized as requested

Powell Lens| Powell Lenses

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.
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.


Powell Prism| Powell Prisms

Powell prisms (also called laser linear generator lenses) are optical marking prisms that can be optimized for the input of laser beams with a diameter of 0.8mm. After passing the laser beam, it can be optimized into a straight line, with uniform optical density, good stability and good linearity. Unlike the cylindrical lens that generates the central hot spot and the fading edge of the Gaussian beam, it can eliminate the distribution of the central hot spot and the fading edge of the Gaussian beam, and form a straight line with uniform energy distribution. The full fan angle ranges from 1° to 120°. The standard specifications are 5°, 10°, 20°, 30°, 40°, 45°, 50°, 60°, 70°, 80°, 90°, 110° and 120°.
The Gaussian laser beam passes through an ordinary cylindrical lens to produce a linear uneven distribution, while Powell has a complex two-dimensional aspheric surface on the top of the prism. A large amount of spherical aberration is generated through the laser, and the optical path is redistributed, reducing the center of the light. Area, increase the edge of the light, form a uniform line, suitable for various biomedical, automobile assembly, food processing and machine vision applications.

Used for positioning, laser marking machine, processing marking positioning, building target marking, laser scanning system, measuring equipment. It is suitable for various machine vision applications; from biomedicine to car assembly to chocolate chip cookie production; various online inspections of mobile phones, aircraft military applications, and shipyards.


Fan Angle| Range of Fan

The width of the Powell lens fan angle is a function of the refractive index of the glass and the roof angle. The steeper the roof and the higher the refractive index, the wider the fan angle and the longer the line for a given projection distance. Small fan angles typically use optical glass of a moderate, n=1.5, refractive index. Large fan angles are best made with a high index glass, n= 1.8, or higher to minimize the roof's otherwise steep angle.

Specification of Powell lens we can manufacture

Material Fused silica/ BK7glass
Diameter Φ0.8mm, Φ1mm, Φ2mm, Φ3mm, Φ5mm, Φ6mm, Φ9mm, Φ10mm,   Φ 15mm or customized size
Diameter Tolerance +0.0/-0.05mm / ±0.05mm
Range of Fan 3°,5°,10°,15°,20°,30°,45°,53°,60°,70°,75°,85°,90°96°,100°,110°,120°
Angle tolerance <3arc min~30arc sec.
Beam wide 3mm, 4mm, 5mm or customized size
Surface quality 60/40, 40/20, 20/10 scratch and dig
Clear aperture >90%
Bevel <0.2mm×45°
Coating As request 

Large inventory of powell lens| Off-the-Shelf Powell PrismsPowell Lenses in Stock

VY Optoelectronics Co.,Ltd. has large inventory of powell lenses, powell prisms, laser line generator lenses in stock, diameter of powell lens in stock is 6mm and 9mm, fan angle is 5 degrees, 10 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees, 90 degrees. Please contact us freely to inquire exact details of our powell lens and powell prisms. The price of powell prisms in stock is very attractive, delivery of powell lenses is very fast. Thanks.

Diameter Fan Angle Spot size Quantity in Stock
6.00mm 5 degrees 2.0mm 20 pieces
6.00mm 10 degrees 2.0mm 20 pieces
6.00mm 15 degrees 2.0mm 20 pieces
6.00mm 30 degrees 2.0mm 20 pieces
6.00mm 45 degrees 2.0mm 20 pieces
6.00mm 60 degrees 2.0mm 20 pieces
6.00mm 90 degrees 2.0mm 20 pieces

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