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| Coad | 668573 | Substrate | UVFS | |
| Type | Plano-Convex Lenses | Clear Aperture | 90% CA | |
| Diameter(mm) | 12.70 | Diameter Tolerance | +0/-0.1mm | |
| Thickness(mm) | 1.80 | Thickness Tolerance | +0/-0.1mm | |
| Center Thickness | 2.9mm | Parallelism | ≤3 arcmin | |
| Wavelength(nm) | 200 - 2100 | Surface Quality | 40-20 | |
| Focal Length(mm) | 40.10 | Focal Length Tolerance | ±1% | |
| Radius of Curvature | 18.4mm | Back Focal Length | 38.1mm | |
| Sagittal Aperture | 0.5 | Aperture on Curved Surface | 3 | |
| Surface Irregularity | λ/2@633 nm | Laser Damage Threshold | 0.80J/cm2@980nm，190fs，100Hz，Ø12.684μm (100 Pulses) 0.11J/cm2@355nm，180.5fs，100Hz，Ø6.558μm (100 Pulses) | |
| Coating Type | Uncoated | Mechanical Housing | - | |
| Coating Specifications | Uncoated | |||
LBTEK Plano-Convex Lenses are made from UV fused silica, which offers better homogeneity and a lower thermal expansion coefficient compared to N-BK7 glass, making them well-suited for applications in the UV and near-infrared ranges. These plano-convex lenses feature positive focal lengths and are commonly used for imaging or beam collimation applications. LBTEK provides both unmounted and mounted versions of plano-convex lenses, covering the 200 nm–2.1 μm wavelength range, with element diameters available in 6 mm, 12.7 mm, 25.4 mm, and 50.8 mm. The mounted lenses are pre-installed in standard lens tubes, with the tube surfaces engraved with the product model, type, diameter, and focal length, allowing users to quickly identify lens specifications.
LBTEK Plano-Convex Lenses are made from UV fused silica, which provides better homogeneity and a lower thermal expansion coefficient compared to N-BK7 glass, making them suitable for use in the UV and near-infrared ranges. These plano-convex lenses feature positive focal lengths and are commonly used for imaging or beam collimation applications. All unmounted LBTEK lenses 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 different application scenarios.
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