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| Coad | 668222 | Substrate | UVFS | |
| Type | Plano-Convex Lenses | Clear Aperture | 90% CA | |
| Diameter(mm) | 25.40 | Diameter Tolerance | +0/-0.1mm | |
| Thickness(mm) | 2.00 | Thickness Tolerance | +0/-0.1mm | |
| Center Thickness | 2.7mm | Parallelism | ≤3 arcmin | |
| Wavelength(nm) | 400 - 700 | Surface Quality | 40-20 | |
| Focal Length(mm) | 250.90 | Focal Length Tolerance | ±1% | |
| Radius of Curvature | 115.0mm | Back Focal Length | 249.0mm | |
| Sagittal Aperture | 0.5 | Aperture on Curved Surface | 3 | |
| Surface Irregularity | λ/2@633 nm | Laser Damage Threshold | - | |
| Coating Type | Anti-Reflective Coating | Mechanical Housing | - | |
| Coating Specifications | Ravg<0.5%a@400-700nm | |||
LBTEK plano-convex lenses are made of UV fused silica, which provides better homogeneity and a lower thermal expansion coefficient compared to N-BK7 glass, making them especially suitable for use in the ultraviolet and near-infrared spectral ranges. With a positive focal length, LBTEK plano-convex lenses are commonly applied in imaging and beam collimation. LBTEK offers both unmounted and mounted plano-convex lenses for the 400–700 nm wavelength range, with available diameters of 12.7 mm, 25.4 mm, and 50.8 mm. The mounted versions come pre-installed in standard lens tubes, with the product model, type, diameter, and focal length engraved on the tube surface for quick and convenient identification.
LBTEK plano-convex lenses are made of UV fused silica, which offers superior homogeneity and a lower thermal expansion coefficient compared to N-BK7 glass, making them well-suited for ultraviolet and near-infrared applications. With a positive focal length, LBTEK plano-convex lenses are commonly used in imaging and beam collimation. The unmounted versions can be installed in LBTEK standard lens tubes, fixed lens mounts, or various coaxial mounting plates, allowing customers to choose the most suitable installation method for their specific application needs.
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