F-Theta Lenses

VY Optics can customized F-theta lens per your requirements.
F-theta lenses have been engineered to provide the highest performance in laser scanning or engraving systems. These lenses are ideal for engraving and labeling systems, image transfer, and material processing. For many applications in laser scanning and engraving, a planar imaging field is desired for the best results. A spherical lens can only image along a circular plane. The flat-field scanning lens solves this problem.

Laser scanning systems are optimized for precision control of a laser’s beam waist size (diameter of the focused spot) and the accurate position of that waist.
Typically a laser scanning system will incorporate one or two scan mirrors, depending on function.
For instance, in a single mirror system, the mirror will be placed at the entrance pupil position of the f-theta lenses. In a two mirror system, the entrance pupil of the f-theta lens is placed between the two mirrors. To maximize the performance of the f-theta lens, the mirror separation should be minimized.