These low absorption ZnSe negative focusing lenses provide an extended lifetime in laser cutting applications where depth of field is an important factor. Ideally suited for welding, cutting and heat treating, these low cost lenses have superior thermal characteristics which can prevent thermal runaway in high power CO2 lasers.
All series LC lenses are coated and optimized for use at 10.6 microns.
SPECIFICATIONS:
| Diameter Tolerance: | + 0.000″ / – 0.005″ |
| Thickness Tolerance: | +/- 0.010″ |
| Centering Tolerance: | 3 Arc Minutes Maximum |
| Sphericity: | < 1/40th wave at 10.6 microns |
| Surface Quality: | 40-20 Scratch-Dig |
| Focal Length Tolerance: | +/- 0.5 % |
| Absorption: | 0.25 % total |
| AR Coating Reflectivity: | R < 0.5 % at 10.6 microns |
| Catalog No. | Material | Diameter | Focal Length | Edge Thickness | Price | Order |
|---|---|---|---|---|---|---|
| LC-0610-Z-ET4.6 | ZnSe | 0.600" | 1.000" | 0.180" | $140.00 | |
| LC-0620-Z-ET2.0 | ZnSe | 0.600" | 2.000" | 0.080" | $135.00 | |
| LC-0710-Z-ET5.0 | ZnSe | 0.750" | 1.000" | 0.200" | $155.00 | |
| LC-0715-Z-ET4.0 | ZnSe | 0.750" | 1.500" | 0.160" | $145.00 | |
| LC-0720-Z-ET2.5 | ZnSe | 0.750" | 2.000" | 0.100" | $140.00 | |
| LC-0725-Z-ET3.0 | ZnSe | 0.750" | 2.500" | 0.120" | $130.00 | |
| LC-0750-Z-ET2.5 | ZnSe | 0.750" | 5.000" | 0.100" | $125.00 | |
| LC-1020-Z-ET4.0 | ZnSe | 1.000" | 2.000" | 0.160" | $190.00 | |
| LC-1110-Z-ET6.0 | ZnSe | 1.100" | 1.000" | 0.236" | $250.00 | |
| LC-1115-Z-ET5.0 | ZnSe | 1.100" | 1.500" | 0.200" | $235.00 | |
| LC-1125-Z-ET3.0 | ZnSe | 1.100" | 2.500" | 0.120" | $210.00 |