These LINOS F-Theta-Ronar lenses are designed to achieve aberration-free imaging for laser wavelengths between 1030 – 1080 nm, allowing exceptionally small spot diameters over the entire flat image plane. A large variety of focal lengths in optical glass or fused silica designs for high power and ultra-short-pulse laser applications as well as telecentric versions are available, making LINOS F-Theta-Ronar lenses suitable for a wide variety of laser material processing applications. Manufactured with leading-edge production technologies to ensure long-term optical stability, LINOS F-Theta-Ronar lenses meet highest quality standards.
Due to their extra low absorption coating and their extremely small thermal focus shift, LINOS fused silica F-Theta-Ronar lenses are a perfect match for high power applications such as metal welding or cutting as well as for ultrashort-pulse laser applications and hence, the first choice in semiconductor manufacturing.
Fused-silica and optical-glass designs
Telecentric versions available
Focal lengths ranging from 70 mm to 420 mm, tolerance ±1 %
Screw thread M85x1, except 4401-261-000-21 M76x1
Transmission ≥ 96 % with good performance in VIS-range
Laser-damage threshold coating up to 40 J/cm² at 1064 nm, 12 ns, 100 Hz and up to 0.9 J/cm² at 1030 nm, 291 fs, 5 kHz
Low absorption coating for fused silica lenses ≤ 20 ppm at 1064 nm
Includes interchangeable protective glasses
All lenses can be used with enlarged beam diameters and different mirror distances. Accordingly the scan fields and spot size diameters will be changed. Please feel free to send us your request.
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