F-theta scan lenses play a major role in today’s leading-edge laser applications. II-VI manufactures scan lenses for CO2 laser systems that are used for marking, engraving, via hole drilling, and more. In a typical scan lens configuration, the F-theta lens is used with one or two axis galvo mirrors that enable the laser beam’s fast positioning and precision focusing. While standard focusing lenses deliver a focused spot to only one point, scan lenses deliver a focused spot to many points on a scan field or workpiece. They require special considerations in their design and use.
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