Meniscus Lens
Positive meniscus lenses (with larger convex curvature) are mainly used to converge light, commonly applied in laser focusing, optical imaging and other scenarios; negative meniscus lenses (with large..
Product Description
Positive meniscus lenses (with larger convex curvature) are mainly used to converge light, commonly applied in laser focusing, optical imaging and other scenarios; negative meniscus lenses (with larger concave curvature) diverge light and are often used to adjust focal length. In laser systems, meniscus lenses can accurately focus beams to improve processing accuracy and correct optical aberrations.
| Project | Performance Parameters | High Precision |
| Material | 7980 0F or 7979 0F | |
| Specifications | D12.7, D25.4, D30, D37, D50 (custom sizes available) | |
| Dimension Tolerance | ±0.1 mm | ±0.02 mm |
| Flatness (within clear aperture) | λ/4 | λ/10 |
| Focal Length Tolerance | ±1% | ±0.5% |
| Centration Error | ≤3′ | ≤1′ |
| Surface Quality | 20-10 (after coating) | 5-2 (after coating) |
| Edge Chip | <0.2 | <0.05 |
| Bevel | 0.1~0.5*45° | |
| Coating | 532 nm, 915 nm, 976 nm, 1064 nm, 1080 nm (customizable) | |
| Damage Threshold | High damage threshold 15 J/cm², 10 ns, 10 Hz @1064 nm | High damage threshold 25 J/cm², 10 ns, 10 Hz @1064 nm |