Linos F-Theta Scanning Lens & Beam Expander Series
| Brand | Linos |
|---|---|
| Origin | Germany |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model Designation | Linos F-θ Lens / Beam Expander |
| Pricing | Upon Request |
Overview
The Linos F-Theta Scanning Lens and Beam Expander Series represents a class of high-precision, application-optimized optical components engineered for industrial laser processing systems. These optics operate on fundamental principles of Gaussian beam manipulation and telecentric scanning geometry. The F-θ lenses are designed to ensure linear scan displacement at the focal plane—where the focal length (f) and input scan angle (θ) maintain a strict proportional relationship—enabling uniform spot size and minimal distortion across large working fields. Beam expanders utilize Galilean or Keplerian configurations to increase collimated beam diameter while preserving wavefront fidelity and M² factor, critical for maintaining focusability in high-power laser applications. Manufactured in Germany under stringent DIN ISO 9001-certified processes, each optic undergoes interferometric surface verification, spectral transmission mapping, and environmental stability testing (including thermal cycling from –10 °C to +60 °C), ensuring long-term performance consistency in demanding production environments.
Key Features
- German-engineered optical design with sub-λ/10 surface irregularity (RMS) on all coated substrates
- F-θ lenses optimized for galvanometric scanner integration, supporting scan angles up to ±20° with <0.5% field curvature error
- Beam expanders available in fixed-ratio (e.g., 2×, 3×, 5×, 10×) and adjustable configurations with kinematic lens mounts
- Anti-reflection coatings tailored for common industrial laser wavelengths: 1064 nm (Nd:YAG), 532 nm (frequency-doubled), 355 nm (tripled), and 266 nm (quadrupled)
- Substrate materials include fused silica (for UV–NIR broadband use), CaF₂ (deep UV), and BK7 (visible range), selected per ISO 10110 surface quality standards
- Mechanical housing compliant with ISO 80550 (DIN 31000) mounting interfaces, including SM1 (1.035″-40), M25×0.75, and custom flange options
Sample Compatibility & Compliance
These optics are compatible with continuous-wave (CW) and pulsed laser sources delivering average powers up to 500 W (depending on coating specification and cooling configuration). They meet EN 60825-1:2014 safety requirements for Class 4 laser system integration and conform to RoHS 2015/863/EU and REACH SVHC regulations. All F-θ lenses comply with ISO 11146-1/-2 for beam parameter measurement traceability, and beam expanders support alignment verification per ISO 10110-5 (centering tolerance ≤ 15 arcsec). Documentation packages include full metrology reports (interferograms, transmission spectra, damage threshold test logs) required for FDA 21 CFR Part 11-compliant validation in medical device manufacturing and semiconductor lithography tool qualification.
Software & Data Management
While inherently passive optical elements, Linos F-θ lenses and beam expanders integrate seamlessly into OEM laser control ecosystems. Optical prescription data (including Zemax-compatible .ZMX files, raytrace models, and spot diagram datasets) is supplied with every shipment. For process validation, Linos provides calibration-ready digital twin models usable in Ansys Speos, Synopsys Code V, and MATLAB-based beam propagation simulations. Traceability metadata—including serial-numbered coating lot IDs, substrate batch certificates, and interferometric map timestamps—is embedded in PDF technical dossiers compliant with ICH Q5E and ISO/IEC 17025 documentation frameworks.
Applications
- Laser marking, engraving, and ablation on metals, ceramics, and polymers using galvo-scanned fiber or DPSS lasers
- High-resolution additive manufacturing (SLM, L-PBF) where consistent beam homogeneity across >100 mm × 100 mm build areas is essential
- UV laser direct imaging (LDI) in PCB and FPD manufacturing requiring diffraction-limited resolution at 266 nm
- Ultrafast laser micromachining (fs/ps pulses) where group delay dispersion (GDD) control is achieved via matched expander–compressor pairs
- Optical coherence tomography (OCT) reference arms and confocal microscopy illumination paths requiring low wavefront error expansion
FAQ
What is the damage threshold for Linos 1064 nm AR-coated F-θ lenses under nanosecond pulse conditions?
Typical LIDT values range from 5–10 J/cm² for 10 ns pulses at 10 Hz repetition rate; exact values are provided per serial number in the delivered test report.
Can Linos beam expanders be used in vacuum environments?
Yes—vacuum-compatible versions with low-outgassing adhesives and stainless-steel housings are available upon request (ISO UHV Class 10⁻⁹ mbar compliance).
Do you supply Zemax or CODE V models for system-level simulation?
Yes—each lens family includes native optical design files, including multi-configuration setups for thermal drift analysis and misalignment sensitivity studies.
Is there a standard warranty period for these optics?
Linos provides a 24-month limited warranty covering material defects and coating delamination under normal operating conditions, as defined in Linos Technical Bulletin TB-OP-2023-01.
