Email: sales@kaemi-oi.com Tel: 86-18305996352
This telecentric F-Theta scan lens operates in the 1200–1400 nm near-infrared wavelength range and is optimized for OCT imaging systems. Featuring a high-precision telecentric F-Theta optical design, it provides a near-linear relationship between the scan position and deflection angle, along with high transmission, low F-Theta distortion, and excellent aberration correction, effectively improving scanning accuracy and imaging consistency.
The lens features a 6 mm entrance pupil, supports a maximum single-axis scan angle of ±16.5° and a dual-axis scan angle of ±12° × ±12°, with a maximum scan field of 22 × 22 mm². With a minimum spot size of 22 μm at 1300 nm, it is suitable for OCT imaging, laser scanning microscopy, and other precision near-infrared scanning applications.
The lens features an M25 × 0.75 threaded interface for convenient integration with galvanometer scanners and other optomechanical systems. Custom development is available for different wavelength ranges, focal lengths, scan angles, working distances, and mechanical interfaces to meet specific application requirements.
Specification | |
Article Number | KM5409 |
Wavelength Range (nm) | 1200–1400 |
FL (mm) | 54 |
Entrance Pupil Diameter (mm) | 6 |
F# | F9 |
Working Distance (mm) | 51.6±2 |
Optical Scan Anglec (Single-Axis Scan) | ±16.5° |
Optical Scan Anglec (Two-Axis Scan) | ±12.0° x ±12.0° |
Scan Field (mm²) | 22x22 |
Spot Size (μm) | 22 |
Depth of Field (mm) | 0.27 |
F‑theta Distortion | <0.25% |
Field Curvature (mm) | <0.35 |
Axial Color (μm) | 200 |
Lateral Color Shift (μm) | 50 |
Average Transmission | >98% |
Mount | M25x0.75 |
Dimension (mm) | Φ46x64 |
Drawing

Contact: Sales
Phone: 86-18305996352
Tel: 86-18305996352
Email: sales@kaemi-oi.com
Add: Room 901, Building 3, No.32-1 Gaoxin Avenue, Shangjie Town, Minhou County, Fujian, China
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