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Duralens™ ZnSe Plano-Convex Lenses
Duralens™ ZnSe Plano-Convex Lenses
These Duralens™ coated ZnSe plano-convex lenses are designed for use as focusing lenses for high power CO2 lasers. These plano-convex lenses are more suitable for high turnover cutting applications including cutting and welding of a wide range of materials when the cost is often more important than the level of accuracy.
- Plano-Convex lens shape for high turnover laser cutting applications
- Duralens™ coating with >99.1% transmission
- High IR transmission Zinc Selenide (ZnSe) substrates
- Approved and used by leading OEMs See All Features
Specifications
- Lens ShapePlano-Convex
- Lens MaterialZinc Selenide (ZnSe)
- Coating TypeDuralens™
- Absorption<0.27%
- Reflection<0.2%
- Transmission>99.1%
- Surface Figure2 Fringes@ 0.633 µm
- Surface Irregularity0.5 Fringe @ 0.633 µm
- Clear Aperture≥90%
- Diameter Tolerance+0.0 /-0.1 mm
- Edge Thickness Tolerance±0.1 mm
- ETV<0.025 mm
Features
Plano-Convex Lenses
Plano-Convex lenses have one flat surface and one curved surface. These lenses are more suitable for high turnover cutting applications including cutting and welding of a wide range of materials (metals, wood, ceramics, plastics, and composites) when the cost is often more important than the level of accuracy. When cutting steels, and other thicker materials, a Plano-Convex Lens provides a greater width of cut which enables the laser's Oxygen Assist to enter the cut and ease the cutting process. In addition, Plano-Convex lenses give a greater depth of field needed to maintain a taperless edge when cutting thicker materials.
CO2 Focusing Lens Coatings
Our standard Duralens™ AR coating features <0.27% absorption rate, HeNe transparency, a standard product lifetime, and a decent cost/benefit ratio. With guaranteed low absorption (LA) and other unique characteristics, the Black Magic™ coating has a lower absorption rate, but it is not transparent, although it is more durable with an extended product lifetime. The ultra low absorption (ULA) Clear Magic™ coating, as its name suggests, it transparent, and has an ultra-low absorption rate of <0.13%, as well as an extended product lifetime, but for a higher price. Both the Black Magic™ and the Clear Magic™ coatings are made from a radioactive-free coating.
| AR COATING | Duralens™ | Black Magic™ (LA) | Clear Magic™ (ULA) |
|---|---|---|---|
| Transmission | >99.1% | >99.35% | >99.37% |
| Absorption | <0.27% | <0.15% | <0.13% |
| Reflection | <0.20% | <0.25% | <0.25% |
Resources
Literature
Duralens™ High Quality CO2 Laser Lenses(650.4 kB, PDF) Handling and Cleaning Instructions for CO2 Optics(135.2 kB, PDF)
Videos
Find out whether your CO2 laser lens is Plano-convex or Meniscus(0:35) CO2 laser optics cleaning using EZ clean(0:33) EZ test polarizers set for CO2 lens stress inspection(0:42) EZ way to find focal length of CO2 laser lens(0:43) A Virtual Tour at Ophir Optics Jerusalem Production Site(2:31)
Catalogs
High Performance Optics for High Power Lasers Brochure(3.4 MB, PDF) Laser Optics Catalog(487.6 kB, PDF) OEM Laser Optical Components Manufacturing Brochure(5.8 MB, PDF)
Technical Articles
MSDS
Duralens EXT Lens Material Safety Data Sheet(258.8 kB, PDF) ZnSe Lens Material Safety Data Sheet(210.5 kB, PDF)
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