whatsapp support +31 6 136 657 00
Email support
worldwide local support
Best chosen CO2 lasers since 2002
Zinc Selenium Plano convex lens
Replacement lens for laser cutters with a CO2 laser source.
Lenses with longer focal lengths theoretically have a sharper notch, but the work is further removed from the air-support sphere of influence. The 63,5mm. focus length is right in the “sweet spot” for sharp cuts and razor-sharp engravings.
Our lenses are made of very high quality Zinc Selenide and unlike some laser lenses on the market, are NON-toxic to the touch. (but you are not allowed to handle lenses with bare hands anyway because of contamination of the lens)
| Specification | tolerance |
| Effective Focus length | ± 2% |
| size tolerance | Diameter: +0.000 "-0.005" thickness: ± 0.010 ” |
| variation in edge thickness | <= 0.002 ” |
| lens opening (polished) | 90% of the standard diameter |
| surface shape at 0.63µm | Plano: 1 edge 1/2 edge irregularity Radius: variable |
| scratch resistance | 20-10 |
| AR Coating Reflectivity surface at 10.6 µm | <= 0.20% |
The quality of the optics in a laser machine is the most important factor with regard to cutting thickness and cutting quality. Never save on lenses and mirrors! These parts are relatively the cheapest parts in your laser machine but are decisive for the end result.
How do I measure the focus distance?
Determining the focus distance of a lens for your CO2 laser machine is fairly easy with a ruler and a light. Shine a lamp through the lens (bulge upwards) and see at which height the focus point is the smallest. Look on the ruler to see which measure comes closest - this is the focal distance of the lens:
2 inches - 50.8 millimeters
2 1/2 inches - 63.5 millimeters etc.
Reviews
There are no reviews yet.