T-LB4915-C - f = 50 mm, Ø1/2" UV Fused Silica Bi-Convex Lens, AR Coating: 1050 - 1700 nm
T-LB4915-C - f = 50 mm, Ø1/2" UV Fused Silica Bi-Convex Lens, AR Coating: 1050 - 1700 nm
| AR Coating Range | 1050 - 1700 nm | |
|
Reflectance Over Coating Range (AOI = 0°) |
Ravg <0.5% | |
| Diameters Available | 5 mm, 6 mm, 1/2", 1", and 2" | |
| Diameter Tolerance | +0.0 mm / -0.1 mm | |
| Thickness Tolerance | ±0.1 mm | |
| Clear Aperture | >90% of Diameter | |
| Design Wavelength | 587.6 nm | |
| Index of Refraction (@ 588 nm) | 1.460 | |
| Surface Quality | 40-20 Scratch-Dig | |
| Spherical Surface Power | 3λ/2 | |
|
Surface Irregularity (Peak to Valley) |
λ/4 | |
| Centration | ≤3 arcmin | |
| Focal Length Tolerance | ±1% | |
|
Damage Threshold |
Pulse | 7.5 J/cm2 (1542 nm, 10 ns, 10 Hz, Ø0.189 mm) |
| CW | >1.52 kW/cm (1540 nm, Ø1.030 mm) | |