New Negative Pcv Lens For Co2 Laser Beam Expander - Improves Your Focus! (cnc)

US $49.00

  • Haifa, Israel
  • Mar 7th
Brand New CO2 Laser Plano-Concave (negative) Lens Up for your bid is a high quality NEW ZnSe Plano-concave lens for CO2 Lasers (10.6 um). The lens is 19.1 mm (0.75") in diameter and has a focal length of -25.4mm (-1.000"). It is also coated for Er:YAG lasers at 2.94um, and for a red aiming laser. The lens is made by the one of the world-leaders in IR optics, the USA Brand II-VI Inc. It's a precision spare part built for a medical laser, and is significantly higher in quality than the majority of the lenses commonly found on eBay, which are typically made in the far-east. Negative focal length (concave) lenses are useful in a "telescope" arrangement together with a convex lens. This creates a beam expander that allows to create a wider laser beam. There are several advantages to a wider beam: first, it has a lower divergence. Second, and very important for laser CNC setups, is the fact that the wider the beam is when it hits the focusing lens, the smaller the spot at the focal point. A smaller focal spot means the power of the beam is concentrated in a smaller area, and the higher power density allows more powerful and accurate cutting / engraving action. This lens is NEW in the original FACTORY BOX and is untouched. I only opened one of these for taking the pictures. You get an unopened box. ZnSe optics cost a fortune when bought from the manufacturer. Buy on eBay and save! Specifications: Type: Lens, negative Design Wavelengths: 10.6 um (CO2 Laser), 2.94 um (Er:YAG Laser), 670 nm (Red aiming laser diode) Diameter: 19.1 mm (0.750") Focal Length: -25.4 mm (-1.000") Material: ZnSe This item is guaranteed non-DOA! Take a look at my other items on eBay! Terms and Conditions If you have any questions regarding this item, feel free to ask and we'll answer to the best of our knowledge. Payment through Paypal is preferred. a bank wire transfer is also possible. For other methods, please contact us directly. We ship all over the world. We've shipped countless times to the USA and Europe, and it goes smoothly and quickly. Estimated delivery time is up to 14 days. Our shipping method is EMS (Postal Service Express Mail Service) - very reliable from our experience. It has online tracking and insurance is also available for a small fee. We COMBINE SHIPPING for multiple items! this will significantly lower your shipping costs if you buy several items. Please note that any customs duties and taxes are the responsibility of the buyer - however in our experience, in many cases there is no charge. When in doubt, please consult the regulations in your country. Israel residents must pay VAT (currently 18%) as required by law. GOOD LUCK BIDDING!   Powered by SixBit's eCommerce Solution

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