Lens Design - Meniscus Lenses

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).

Video : Find out whether your CO2 laser lens is

Ophir demonstrates a simple way to identify a CO2 lens surface (concave, convex or plano) using the len's surface as a mirror.