Laser Lens 18mm Mirror Lens for CO2 Laser Engraving & Cutting Machine 30W-100W

High-Quality PVD ZnSe Material: The laser lens is made of premium PVD ZnSe material, ensuring excellent optical properties and high-temperature resistance. This material is compatible with laser power ranging from 30W to 100W.

Precise Dimensions: The lens has a diameter of 18mm/0.71", a focal length of 50.8mm/2", and a thickness of 2.0-2.2mm/0.08". The diameter tolerance is +0/-0.13mm, and the thickness tolerance is ±0.25mm, ensuring precise fit and performance.

Exceptional Transmittance: The lens boasts a transmittance of ≥99.5%, allowing for minimal laser loss and maximizing the efficiency of the CO2 laser engraving and cutting process.

Exquisite Craftsmanship: The lens undergoes a meticulous manufacturing process, including precise slicing, polishing, and grinding. This results in a superior double-sided solid coating, enhanced durability, and wiping resistance, further improving the optical properties and working efficiency.

Laser Compatibility: The PVD ZnSe CO2 laser focus lens is designed for use with CO2 laser engraving and cutting machines. Its exceptional quality and performance make it a reliable choice for these applications.

Improved Efficiency: The smaller focusing spot size and more concentrated energy of the PVD ZnSe lens contribute to increased efficiency in CO2 laser engraving and cutting operations.

Key Specifications: - Material: PVD ZnSe - Transmittance: ≥99.5% - Diameter Tolerance: +0/-0.13mm - Thickness Tolerance: ±0.25mm - Focal Length Tolerance: <±2% - Centration: <3 arc minutes - Clear Aperture: >90% - Surface Figure: <λ/2 per 1" Dia - Surface Quality: 40-20 scratch and dig - AR/AR Coating: R<0.5% per surface - Compatible Power: 30W-100W

Attention to Details: - Double-sided solid coating for enhanced durability - Wiping-resistant surface - High-temperature laser resistance - Excellent optical properties - High working efficiency

Lens Shapes and Recommendations: Focal length is the distance between the lens and the workpiece (material being cut or engraved). It is recommended to use convex upward, flat, or concave lenses facing the engraving or cutting material.

Causes of Lens Breakage and Tips: 1. Ensure good air cooling to prevent overheating and cracking. 2. Avoid condensation water drops in the lens barrel, as they may cause breakage. 3. Clean the lens regularly to prevent buildup of cut or engraved material, which can lead to uneven heating and breakage. 4. Correctly adjust the light path to avoid the laser accidentally hitting the edge of the lens or the lens barrel junction.

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