

Plano-Convex Lens, N-BK7, AR Coating: 780 nm, Unmounted CX10622-780
CX10622-780Design Tools
Plano-Convex Lens, N-BK7, AR Coating: 780 nm, Unmounted — Model CX10622-780
Operating wavelength 780 nm, focal length 750.0 mm, Ø25.4 mm, substrate N-BK7.
Product Description
- Optical Material: N-BK7;
- Operating Wavelength: 780 nm
- Application: Beam Expander, lmaging, Beam Reducer
The plano-convex lenses from LBTEK feature one convex surface and one flat surface, providing positive focal lengths typically used for beam reduction, focal length shortening, or imaging magnification applications. To minimize spherical aberration, when a plano-convex lens is used for focusing a collimated beam, the beam should be incident on the curved surface. When collimating a point source, the beam should be incident on the flat surface. LBTEK manufactures various lenses using N-BK7, the most common lens material widely used in visible light and near-infrared applications. The 780V coating exhibits lower reflectivity at the operating wavelength and higher damage thresholds, making it suitable for diode lasers and applications where light passes through complex optical systems. All lenses undergo precision machining and strict quality control, ensuring LBTEK delivers high-quality optical products at competitive prices.
Plano-Convex Lens, N-BK7, AR Coating: 780 nm, Unmounted
- Substrate Material: N-BK7;
- Operating Wavelength: 780 nm;
- Application: Imaging, Collimation, Beam Expander;
Address:Building A6, Huanchuang Enterprise Plaza, Yuelu Idstrict, Changsha
| Material | N-BK7 |
| Diameter | 25.4 mm |
| Diameter Tolerance | +0.00/-0.10 mm |
| Clear Aperture | 90% CA |
| Center Thickness | 2.2 mm |
| Center Thickness Tolerance | ±0.1 mm |
| Edge Thickness | 2.0 mm |
| Effective Focal Length | 386.3 mm |
| Design Wavelength | 587.6 nm |
| Operating Wavelength | 780 nm |
| Focal length | 750.0 mm |
| Focal length tolerance | ±1% |
| Back Focal Length | 746.1 mm |
| Coating | Anti-Reflection (AR) Coating |
| AR Coating Reflectance | Ravg<0.25%@Operating Wavelength(6°AOI,single-side) |
| Surface Quality (Scratch/Dig) | 40/20 |
| Flatness (@633 nm) | λ/2 |
| Local surface irregularity | 0.5 |
| Curved Aperture | 3 |
| Eccentricity | ≤3 arcmin |
| Damage Threshold | 10 J/cm2 (810 nm, 10 ns, 10 Hz) |






