Focal length from 45 mm to 1450 mm depending on wavelength
Flat scanning field from 35mm X 35mm to 900mm X 900mm depending on the specific focal length and wavelength
Maximum scanning angle of 25º
Wavelengths of 9.3 µm, 10.6 µm, 1030 -1080 nm, 915 nm, 980 nm, 1064 nm, 808 nm, 532 nm, 355 nm, 266 nm and Achromatic
F-theta lenses are also called flat field focusing lenses or linear lenses. Its image height is equal to the focal length multiplied by the scanning angle (y = f * θ). While focusing lenses generally deliver focus to a single point, they deliver a focused point to multiple points in their scanning field. They are commonly used in marking, engraving and cutting systems, etc.
F-theta lenses are also used for focusing laser welding systems, especially in portable welding machines that are becoming increasingly popular.
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