F-Theta-Ronar Lenses 940-980 nm
LINOS® F-Theta-Ronar lenses are designed to achieve aberration-free imaging for laser wavelengths between 940–980 nm, delivering exceptionally small spot diameters across the entire flat image plane. Offered in a broad range of optical glass focal lengths, they are ideal for diverse laser material processing applications. These lenses are manufactured with advanced production technologies to ensure long-term optical stability and meet the highest quality standards.
All LINOS® F-Theta-Ronar lenses support enlarged beam diameters and a range of mirror distances, with corresponding effects on scan field size and spot diameter.
Please contact us to discuss your specific requirements.
| Product | F-Theta-Ronar 162 mm/940-980 nm | F-Theta-Ronar 254 mm/940-980 nm | F-Theta-Ronar 330 mm/940-980 nm | F-Theta-Ronar 420 mm/940-980 nm |
| Typical scan field | 84 | 120 | 202 | 253 |
| Protective glass Code | PG 18 | PG 17 | PG 17 | PG 17 |
| Nominal focal length (mm) | 162.0 | 254.0 | 330.0 | 420.0 |
| Working Distance | 183.7 mm | 294.2 mm | 386.0 mm | 491.7 mm |
| Effective focal length | 162.1 | 252.7 | 329.8 | 418.5 |
| Screw Thread | M76x1 | M85x1 | M85x1 | M85x1 |
| Typical Scan angle ±Θx,y | ± 14.8 | ± 13.6 | ± 17.6 | ± 17.3 |
| Flange focal length | 217.7 mm | 342.9 mm | 442.9 mm | 548.6 mm |
| Typical Mirror Distance m1/m2 | 17.0 - 33.0 mm | 26.0 - 28.0 mm | 26.0 - 28.0 mm | 26.0 - 28.0 mm |
| Spot diameter at 1/e2 Øspot | 20.0 | 23.0 | 30.0 | 37.0 |
| Part Number | 4401-527-000-21 | 4401-526-000-21 | 4401-524-000-21 | 4401-525-000-21 |
- Focal lengths ranging from 162 mm to 420 mm, tolerance ±1%
- Screw thread M85x1, except 4401-527-000-21 M76x1
- Transmission ≥ 97 % and ≥ 95 % at VIS-range
Laser-damage threshold coating up to 6 J/cm² at 1064 nm, 10 ns, 100 Hz
Includes interchangeable protective glass elements
LINOS F-Theta-Ronar Lens 940-980 nm Technical Drawing
| Product | F-Theta-Ronar 162 mm/940-980 nm | F-Theta-Ronar 254 mm/940-980 nm | F-Theta-Ronar 330 mm/940-980 nm | F-Theta-Ronar 420 mm/940-980 nm |
| Typical scan field | 84 | 120 | 202 | 253 |
| Protective glass Code | PG 18 | PG 17 | PG 17 | PG 17 |
| Nominal focal length (mm) | 162.0 | 254.0 | 330.0 | 420.0 |
| Working Distance | 183.7 mm | 294.2 mm | 386.0 mm | 491.7 mm |
| Effective focal length | 162.1 | 252.7 | 329.8 | 418.5 |
| Screw Thread | M76x1 | M85x1 | M85x1 | M85x1 |
| Typical Scan angle ±Θx,y | ± 14.8 | ± 13.6 | ± 17.6 | ± 17.3 |
| Flange focal length | 217.7 mm | 342.9 mm | 442.9 mm | 548.6 mm |
| Typical Mirror Distance m1/m2 | 17.0 - 33.0 mm | 26.0 - 28.0 mm | 26.0 - 28.0 mm | 26.0 - 28.0 mm |
| Spot diameter at 1/e2 Øspot | 20.0 | 23.0 | 30.0 | 37.0 |
| Part Number | 4401-527-000-21 | 4401-526-000-21 | 4401-524-000-21 | 4401-525-000-21 |
- Focal lengths ranging from 162 mm to 420 mm, tolerance ±1%
- Screw thread M85x1, except 4401-527-000-21 M76x1
- Transmission ≥ 97 % and ≥ 95 % at VIS-range
Laser-damage threshold coating up to 6 J/cm² at 1064 nm, 10 ns, 100 Hz
Includes interchangeable protective glass elements
LINOS F-Theta-Ronar Lens 940-980 nm Technical Drawing