- 20mm Zinc Selenide Focusing Lens: Specifically designed for engraving cutter machines, this lens offers three focal length options: 8mm, 63.5mm, and 101.6mm, making it compatible with power ranges of 50-100W. - Superior Transmittance and Heat Resistance: Constructed from PVD-coded zinc material, this lens boasts high light transmission of up to 98% while effectively minimizing transmission loss and absorption. This ensures optimal performance even under high-power conditions. - Durable Coating: The upgraded double-sided coating process provides a robust and long-lasting finish that resists impacts and wear. This durability enhances the lens's lifespan and maintains consistent performance over time. - Enhanced Precision and Cutting Speed: The polished cylindrical shape of the lens improves light transmission and minimizes stray light and reflections. This design results in a finer point size and faster cutting speeds, increasing overall operational efficiency. Applications: 1. Ideal for precise engraving in various materials such as wood, acrylic, and metal. 2. Perfect for use in industrial settings where high-performance cutting is essential. 3. Suitable for hobbyists and professionals seeking to upgrade their laser engraving capabilities. This 20mm Zinc Selenide Focusing Lens is a reliable choice for anyone looking to enhance their engraving machine's performance with exceptional clarity, durability, and efficiency.