The CKX075AR.18 Plano-Convex Cylindrical Lens is a 1000 to 1550 nm anti-reflection coated, 2 inch (50.8 mm) length by 1 inch (25.4 mm) width, BK 7 plano-convex cylindrical lens with an effective focal length of 75.6 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's BK 7 precision cylindrical lenses are manufactured from fine annealed optical glass and are polished to tight tolerances to ensure minimum wavefront distortion.
| Model | CKX075AR.18 |
|---|---|
| Lens Shape | Plano-Convex |
| Lens Type | Cylindrical |
| Effective Focal Length | 75.6 mm |
| Dimensions | 2.0 x 1.0 in. (50.8 x 25.4 mm) |
| Lens Material | Grade A BK7 |
| Antireflection Coating | 1000-1550 nm (AR.18) |
| Surface Quality | 40-20 scratch-dig |
| Clear Aperture | ≥central 80% of dimensions |
| Surface Flatness | λ/2-λ/4 |
| Te | 3.0 mm |
| Edge Thickness (Te) Tolerance | ±0.3 mm |
| Center Thickness (Tc) | 5.12 mm |
| Center Thickness (Tc) Tolerance | +0.5/-0.25 mm |
| Focal length tolerance | ± 2.0% |
| FFL | 75.60 mm |
| BFL | 72.22 mm |
| f/Y | 3.0 |
| Centration | <3 arc min |
| Length X | 50.8 mm |
| Width Y | 25.4 mm |
| Length (X), Width (Y) Tolerance | ±0.1 mm |
| Wedge | <1 mrad in X axis |
| P2 | -3.38 mm |
| R | 39.090 mm |
| Wavelength Range | 1000 to 1550 nm |
| Chamfers | 0.5 mm face width |
| Surface Accuracy | ≤λ/4 per cm |
| Surface Accuracy | ≤λ/2 |
| Surface Accuracy, Irregularity (lambda) | ≤λ/4 per sq inch |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
