CO2 flat-field scanning lens laser marking welding cutting field mirror

F-ThetaLenses are often used in conjunction with galvanometer scanners in laser engraving, cutting, and marking systems. Typically, the F-Theta distortion of the lens is kept below 1% to be able to produce precise light spots in the flat field of the image plane.

The dual F-Theta lens offers better performance than the single lens. It has a more uniform light spot size in the scanning field and less light spot distortion. We use ZnSe or GaAs for this range of scanning lenses. Lens adapters for major scan head suppliers are available upon request.

The SL3 series F-Theta lenses consist of three ZnSe elements with or without protective windows; they reduce light spot distortion and achieve a more uniform light spot size on the scanning field compared to SL1 and SL2. SL3 is used in finer CO2 laser applications, such as electronic microprocessors.

Lens adapters for major scan head suppliers are available upon request.