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powell prism

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Glass Laser Powell Prism Lens Available from stock


These Laser Line Generator Lenses, also known as Powell lenses, generate a straight, uniform laser line by fanning out a collimated beam in one dimension, as shown in the diagram above. The apex of each lens features an aspheric curve that evenly distributes the optical power, resulting in an intensity variation of less than 25% over the center portion of the line. You will get more even energy distribution along the laser line than using the rod lenses and lenses 


Optimized for a 0.8mm diameter laser beam input, our Powell Lenses, also known as Laser Line Generator Lenses, convert laser beams into uniform, straight lines. Unlike cylindrical lenses, which generate Gaussian beam profiles with hot-spot center points and fading edges, Powell Lenses provide an even distribution of energy along the length of the entire line. An antireflection (AR) coating applied to the roof and output face from 400 nm to 700 nm.

 

Powell lenses are lenses that create a straight laser line by dispersing, in a controlled way, an input collimated beam.  They were first proposed in 1987 by I. Powell where he describes the design of an optical element for laser beam line expansion; that element bears some resemblance to a prism with a small radius at its apex and expands the laser beam in only one direction.

 

While its assumed that using cylindrical lenses creates the same effect, thus making Powell lenses unnecessary, a big difference between the line created by a cylindrical lens and that created by a Powell lens can be found in the beam intensity along the generated line.

 

It is possible to create a laser line using cylindrical lenses, however, the intensity profile of such a line will have a Gaussian-like distribution, meaning that the line will have a higher distribution at its center and it will slowly fade away as we reach the edges.  



 About powell lens               

 

 The Powell Lens can be widely  used in alignment, machine  vision systems, construction and  process control fields.

 Worldhawk are professional  supplier for powell lens, in fact,  we have already become the one  of the main important suppliers  of powell lenses in China.  cooperation with us , you will get  high quality products with  reasonable price and products  performance at the same time .

 
 Specifications  
 Material (Substrate)   H-K9L ( N-BK7 ), H-ZF7LA ( N-SF6 )
 Diameter  φ6,φ9 +0/-0.05 mm (or customized)
 Height  6.5~8.5mm+/-0.05 mm (or customized)
 Fan Angle  8°~110° +/-3% deg
 Energy Uniformity  <20% (central 80% of line.) 
 Straightness of line  <0.1%
 Apex Offset  <0.02mm
 Wavelength Range  400nm-1100nm
 Clear Aperture  ≥90%
 Input Beam Size  Dia. 0.5-5mm
 Scratch and Dig (S/D)  60/40 40/20
 Coating  Uncoated, AR, BBAR, Reflective
 RoHS  Compliant

 

 

45 60 90 degree Powell Prism with N-BK7 or K9L Glass

 

+ Different Powell Lenses 

45 60 90 degree Powell Prism with N-BK7 or K9L Glass

  

45 60 90 degree Powell Prism with N-BK7 or K9L Glass

 


Product application introduction:

◇Powell Lenses, also called Laser Line Generator Lens, provide an even distribution of energy along the length of the entire line; In general, we provide 9mm and 6mm powell lens, Fan angle from 10 degrees to 90 degrees, beam diameter from 0.8-5mm, H-K9L powell lens and N-SF6 powell lens; Our powell lens divide into two accuracy, High precision  powell lens and Standard Technology powell lens, Laser line uniformity and distribution of energy of High precision  powell lens is much even than Standard Technology powell lens.

◇Optical Mirrors in a multitude of reflective coating options, including Protected Aluminum mirror, Enhanced Aluminum mirror, Protected Silver mirror, Protected Gold mirror, or Dielectric mirror.

◇Optical Lenses are optical components designed to focus or diverge light. A Plano Convex Lens or Double Convex lens causes light to focus to a point, while a Plano Concave Lens or Double Concave Lens causes the light traveling through the lens to diverge. Achromatic Lens are ideal for applications requiring color correction, while Aspheric Lens are designed to correct spherical aberration. Germanium Lens, Silicon Lens, or ZnSe lens are ideal for transmitting the Infrared (IR) spectrum, while Fused Silica Lens is well suited for the Ultraviolet (UV).


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Address: Changchun, China
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