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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.

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.