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II-VI ZnSe MENISCUS Focus Lens Dia. 20mm FL 101.6mm (4″) for the 4″ head

$80.00

This is a 20mm diameter 4″ (101.6mm) focal length Meniscus lens for the 4″ Nova series heads and any other 4″ head that accepts ZnSe 20mm diameter focal point lenses.

Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light. Unlike the plano-convex lenses normally used in most CO2 gantry machines, these lenses are ground on both faces so its actually a compound optic.

II-VI Infrared is the world leader in laser optics, delivering an unbeatable combination of innovation, quality, and expertise.

 

THESE ARE ONLY AVAILABLE IN A QTY OF 1

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Description

This is a 20mm diameter 4″ (101.6mm) focal length Meniscus lens for the 4″ Nova series heads and any other 4″ head that accepts ZnSe 20mm diameter focal point lenses.

II-VI Infrared is the world leader in laser optics, delivering an unbeatable combination of innovation, quality, and expertise. II-VI Infrared also delivers the largest vertically integrated CO2 laser optics manufacturing process — from raw materials to finished coated products — in the world

Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light. Unlike the plano-convex lenses normally used in most CO2 gantry machines, these lenses are ground on both faces so its actually a compound optic.

THESE ARE ONLY AVAILABLE IN A QTY OF 1. Once these are gone, we dont anticipate getting more. We found them in a box and wanted to offer people the chance to try out a meniscus lens and see what they thought. These are commonly available from other sources.

MORE INFO from https://www.ophiropt.com/co2-lasers-optics/focusing-lens/knowledge-center/tutorial/lens-design1

Meniscus Lenses

  • Meniscus lenses have one concave surface and one convex surface.
  • Creates a smaller beam diameter, reducing the spherical aberration and beam waste when precision cutting or marking.
  • Provides a smaller spot size with increased power density at the work piece.

 

Meniscus Lens Although meniscus lenses are more expensive than Plano-Convex lenses, they offer a higher accuracy of the cut therefore increasing cutting speed by up to 5%.
Meniscus lenses are usually used by European customers and machine manufacturers (OEM’s).

Plano-Convex Lenses

  • Plano-convex lens has one flat surface and one convex surface.
  • More suitable for high turnover cutting applications, and when the cost is more important than the level of accuracy.
  • When cutting steel and other thick materials, a Plano-convex lens provides a greater cut width, enabling the laser’s oxygen assist gas to aid the cutting process.

 

 

Plano-Convex Lens When cutting steel and other thick materials, a Plano-Convex lens provides a greater width of the cut enabling the laser’s Oxygen assist to enter and ease the cutting process.
In addition, Plano-Convex lenses give a greater depth of field needed to maintain a taperless edge when cutting thicker materials. This kind of lens is more popular in American and Japanese machinery.

 

Additional information

Weight .0625 lbs
Dimensions 3 × 3 × .5 in
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