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| Coad | 668174 | Substrate | UVFS | |
| Type | Plano-Convex Lenses | Clear Aperture | 90% CA | |
| Diameter(mm) | 25.40 | Diameter Tolerance | +0/-0.1mm | |
| Thickness(mm) | 2.10 | Thickness Tolerance | +0/-0.1mm | |
| Center Thickness | 4.4mm | Parallelism | ≤3 arcmin | |
| Wavelength(nm) | 245 - 400 | Surface Quality | 40-20 | |
| Focal Length(mm) | 75.30 | Focal Length Tolerance | ±1% | |
| Radius of Curvature | 34.5mm | Back Focal Length | 72.2mm | |
| 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 | SM1-8A（Lens sleeve with SM1 internal and external threads） | |
| Coating Specifications | Ravg<0.5%a@245-400nm | |||
LBTEK plano-convex lenses are made of UV fused silica, which offers better homogeneity and a lower thermal expansion coefficient compared to N-BK7 glass, making them well-suited for use in the ultraviolet and near-infrared spectral ranges. LBTEK plano-convex lenses have a positive focal length and are commonly used in imaging, beam collimation, and similar applications. LBTEK provides both unmounted and mounted plano-convex lenses. The operating wavelength range is 245 nm to 400 nm, with available diameters of 12.7 mm, 25.4 mm, and 50.8 mm. Mounted versions are pre-assembled in standard lens tubes, with the product model, type, diameter, and focal length engraved on the tube surface for quick and convenient identification of lens parameters.
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 ideal for use in the ultraviolet and near-infrared spectral ranges. With a positive focal length, LBTEK plano-convex lenses are commonly used for imaging and beam collimation applications. The mounted versions are pre-assembled in standard lens tubes, with the product model, type, diameter, and focal length clearly engraved on the tube surface, allowing users to quickly and easily identify lens parameters.
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