Powell Prism

Powell Prism

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.



Description Of Powell Prism


Powell prism (also known as laser linear generator lens) is an optical marking prism, which can be optimized for the input of laser beam with the diameter of 0.8mm. Powell optical prism makes the laser beam can be optimized into a straight line with uniform optical density, good stability and good linearity after passing through. Different from the cylindrical lens which produces the characteristics of central hot spot and faded edge gaussian beam, it can eliminate the distribution of central hot spot and faded edge of 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°.


Gaussian laser beam by ordinary cylindrical lens, produces the uneven distribution of straight line, and Powell at the top of the prism is complex two-dimensional aspheric surface, through laser will produce a large number of spherical aberration, light path is redistributed, reduce the light of the central region, increase the edge of the light, to form a uniform line, suitable for all kinds of biological medicine, automobile assembly, food processing and machine vision applications.


Used for positioning, laser marking machine, processing marking positioning, marking the building target, laser scanning system, measuring equipment. For a variety of machine vision applications; From biomedical to automotive assembly to chocolate chip cookie production; Mobile phone all kinds of online detection, aircraft military applications, ship plant.


Description Of Powell Prism
Description Of Powell Prism For Sale
Description Of Custom Powell Prism

Specification Of Powell 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 No.Beam   dimension
   (mm)
Angle  of fan
   ( °)
Diameter
   ( mm )
Height
   ( mm )
BRD-PWP-1GB-1511598
BRD-PWP-1GB-3013098
BRD-PWP-1GB-4014098
BRD-PWP-1GB-4514598
BRD-PWP-1GB-6016098
BRD-PWP-1GB-9019098
BRD-PWP-1GB-110111098
BRD-PWP-2GB-42498
BRD-PWP-2GB-3023098
BRD-PWP-2GB-6026098
BRD-PWP-2GB-7027098
BRD-PWP-2.5GB-302.53098
BRD-PWP-3GB-1031098
BRD-PWP-3GB-1531598
BRD-PWP-3GB-2032098
BRD-PWP-3GB-3033098
BRD-PWP-3GB-4534598
BRD-PWP-3GB-6036098
BRD-PWP-3GB-7037098
BRD-PWP-3GB-9039098
BRD-PWP-3GB-110311098
BRD-PWP-4GB-2242298
BRD-PWP-4GB-3043098
BRD-PWP-4GB-9049098
BRD-PWP-5GB-1051098
BRD-PWP-5GB-3053098
BRD-PWP-5GB-3553598
BRD-PWP-5GB-4054098
BRD-PWP-5GB-4554598
BRD-PWP-5GB-5555598
BRD-PWP-5GB-6056098
BRD-PWP-5GB-7057098
BRD-PWP-5GB-7557598
BRD-PWP-5GB-9059098
BRD-PWP-5GB-110511098
BRD-PWP-5.7GB-905.79098


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