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F-Theta Scanning Lenses are commonly used in laser marking, engraving, and cutting systems. Used in conjunction with a galvanometer, beam expander, and Nd:YAG or CO2 laser source, F-theta lenses are designed to provide a flat field at the image plane of the scanning system.
Our Nd:YAG F-Theta Lenses feature multiple elements for the ultimate in image resolution. An air-spaced design and high efficiency AR coatings guarantee excellent throughput and durability. An industry-standard M85 threading on all F-theta lenses allows for easy mounting and simple retrofitting of OEM systems.
Our Nd:YAG F-Theta Lenses feature pulsed laser damage thresholds up to 5J/cm2 @10ns, or 1MW/cm2 (CW).
For diffraction-limited focusing performance at the image plane, the entire entrance pupil of the F-Theta lens should be utilized. Our 3X and 5X TECHSPEC® UDA Fixed YAG Beam Expanders are ideal complements to our F-Theta lenses.
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