F Theta Lens 300x300mm 420mm Focal Length Fiber Laser Scan Lens M85x1 Thread For 1064nm Galvo System Engraving Machine Ideal For Steel Aluminum Gold And More With Fast Positioning And Uniform Spot Pro Grade Performance
✔️ 1x lens, 300x300mm field, M85x1, 1064nm, AR-coated
The F-Theta scan lens is a precision optical part built for fiber laser marking and engraving systems. It delivers fast positioning and uniform spot marking across a 300x300 mm scan field, and works smoothly with galvanometer scanners and beam expanders for reliable, high-quality results on steel, aluminum, gold, and more.
✅ Wavelength: 1064 nm with AR-coated glass for high transmittance
✅ Scan field: 300x300 mm, 420 mm focal length
✅ Thread: M85x1 for easy installation in laser markers
✅ High transmittance: up to 98% at 1064 nm reduces energy loss
✅ Durable construction: wear- and heat-resistant optics for longevity
💡 What is a F-Theta lens used for in laser marking systems?
A handy optical component that helps focus and scan the laser for precise, repeatable marks over a large area.
- F-Theta lenses provide uniform spot size across the scan field
- They enable fast positioning when used with galvanometer scanners
- Compatibility with 1064 nm fiber lasers and beam expanders helps maximize engraving quality