Our F-theta scan lens covers a wavelength range from 355nm ultraviolet (UV) to 10.6um infrared. The optical glass F-theta scan lens is suitable for the majority of low-power industrial laser marking and other laser processing applications on the market. Compared to fused silica, optical glass lenses have a larger scanning angle. High-power fused silica F-theta scan lenses have a higher damage threshold to withstand high laser power, as well as better thermal stability to reduce thermal focal drift. When high-power, short pulse width lasers act on the lens surface, it can cause thermal focal drift, leading to front and back drift of the focused spot. To achieve a more stable focusing effect, high-power fused silica F-theta scan lenses are widely used in high-power laser processing applications. ZnSe F-theta scan lenses are suitable for CO2 lasers, with the material being zinc selenide crystal, mainly operating in the wavelength range of 9.3μm-10.6μm.