18 mm Meniscus Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens for 60W 80W Laser Engraver Cutter Pre-Order Now:Ships Early September reducing potential damage to the

reducing potential damage to the laser tube and power supply

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18 mm Meniscus Focus Lens, CVD ZnSe CO2 Laser Engraver Focal Lens for 60W 80W Laser Engraver Cutter Pre-Order Now:Ships Early September reducing potential damage to theFEATURES: High Efficiency Meniscus Lens: This 18 mm meniscus focus lens from OMTech ensures improved beam concentration, boosting engraving efficiency by around 11% compared to plano convex lenses. High Quality CVD ZnSe: This CO2 laser meniscus focusing lens is made of premium CVD ZnSe material to ensure minimal distortion, providing a clear and sharp focal point for your precise laser engraving. Over 99. 5% Transmittance Rate: Both sides of the CO2