T-LF4706 - f = -500.0 mm, Ø1" UV Fused Silica, Negative Meniscus Lens, Uncoated
T-LF4706 - f = -500.0 mm, Ø1" UV Fused Silica, Negative Meniscus Lens, Uncoated
- Ø1" Negative Meniscus Lenses
- Available Uncoated or with a UV AR Coating for the 245 - 400 nm Range
- Focal Lengths Available from -100.0 to -1000.0 mm
- Fabricated from UV Grade Fused Silica
- Spherical Surface Power: 3λ/2
- Spherical Surface Irregularity: λ/4
- Diameter 1"
- Focal Length -500.0 mm
- Diopter -2.0
- Radius of Curvature 1 200.0 mm
- Radius of Curvature 2 106.4 mm
- Center Thickness 3.5 mm
- Edge Thickness 3.9 mm
- Back Focal Length -497.2 mm
| Diameter | 1" | |
| Diameter Tolerance | +0.0 mm / -0.1 mm | |
| Wavelength Range | 185 nm - 2.1 μm | 245 - 400 nm |
| Reflectivity Over Coating Range (AOI = 0°) |
- | Ravg <0.5% |
| Damage Threshold | - | 5 J/cm2(355 nm, 10 ns, 10 Hz, Ø0.350 mm) |
| Focal Length Tolerance | ±1% | |
| Surface Quality | 40-20 Scratch-Dig | |
| Spherical Surface Power | 3λ/2 | |
| Spherical Surface Irregularity | λ/4 | |
| Clear Aperture | >Ø22.86 mm | |
| Design Wavelength | 546 nm | |
| Index of Refraction (@ Design λ) |
n = 1.460 (@ 546 nm) | |
| Centration | ≤3 arcmin | |