Telecentric F-Theta Scanning Lens for Laser Marking, Welding, Cutting, and UV Field Lens
A telecentric F-Theta lens is a special type of lens system that allows off-axis deflected laser beams to focus perpendicularly onto the workpiece, just like an on-axis focused beam. The advantage of a telecentric scanning lens lies in its ability to flatten field curvature to minimal distortion while delivering excellent spot quality across the entire scanning field.
The output beam of a telecentric field lens is always perpendicular to the work surface, and the focused spot size remains consistent across the entire field. It is commonly used in precision cutting, marking, and other applications. Distortion <1%, telecentricity <4°.
Telecentric F-Theta Lens – Fused Silica (TSL-Q Series)
For high-power laser and ultrafast laser sources, we offer the TSL-Q series of telecentric F-Theta lenses to minimize thermal lensing and focal shift.