F-Theta
Scanning Lenses
High-performance F-Theta lenses for galvo laser scanning systems. Covering 1064 nm, 532 nm, and 355 nm wavelengths -- from compact precision work to ultra-large-format scanning.
Why Choose ZD Optics F-Theta Lenses
F-Theta lenses are core optical components in galvo laser scanning systems. ZD Optics delivers industrial-grade performance with 30+ years of precision manufacturing expertise.
Full Wavelength Coverage
Complete solutions for 1064 nm fiber, 532 nm green, and 355 nm UV laser applications from a single trusted source.
- 1064 nm / 532 nm / 355 nm
- Standard M85×1 interface
Ultra-Fine Spot Size
Achieve focused spot sizes down to 3 μm for UV models, enabling precision micro-processing and fine feature accuracy.
- Down to 3 μm (355 nm series)
- Gaussian beam optimized (M²≈1)
100% Outgoing Inspection
Every lens ships with individual inspection reports covering all critical optical parameters for quality assurance.
- Wavefront PV & spot reports
- Transmittance & ellipticity data
High Transmittance
Selected models achieve transmittance above 98%, maximizing laser energy delivery and processing efficiency.
- Up to 98%+ transmittance
- Advanced AR coating technology
Wide Scan Field Range
Scan fields from 21.7 mm to 580.1 mm cover everything from precision micro-processing to large-format industrial scanning.
- 21.7 mm to 580.1 mm range
- Compact to ultra-large format
University-Backed R&D
Supported by Zhejiang University's College of Optical Science and Engineering, driving continuous innovation in optical performance.
- 30+ years manufacturing heritage
- NEC, Panasonic, Nikon supply history
Typical Application Areas
F-Theta lenses from ZD Optics are deployed across demanding industrial laser processing environments.
Product Specifications
High-Power F-Theta Lens
Ultra-large-format scanning for high-power laser applications
1064 nm F-Theta Lens Series
Designed for fiber laser processing -- compact to large-format scanning
532 nm F-Theta Lens Series
Designed for green laser applications -- fine spot control and visible-wavelength performance
355 nm F-Theta Lens Series
Developed for UV laser precision micro-processing -- finest spot sizes in the ZD Optics range
Technical Notes
- All parameters based on Gaussian beam (M²≈1)
- Actual beam quality affects final focused spot size
- Flange focal distance (FFD) tolerance: ±1.5%
- Effective focal length (EFL) tolerance: ±1.5%
- Standard interface across all models: M85×1
- Custom specifications available upon request
100% Outgoing Inspection
Every F-Theta lens manufactured by ZD Optics can be shipped with individual inspection data. Our strict process control ensures stable optical performance and reliable delivery for industrial customers worldwide.
Transmitted Wavefront PV Report
Individual wavefront measurement data confirming optical path quality and aberration control.
Focused Spot Diameter & Ellipticity Report
Measured spot size and beam shape data verifying focusing performance at the specified wavelength.
Total Transmittance Report
Measured transmittance data ensuring maximum laser energy throughput and coating quality.
Trusted by Industry Leaders
Over 20 years of trusted supply experience serving internationally recognized companies in precision optics and electronics manufacturing.
University-Backed Innovation
Supported by the College of Optical Science and Engineering at Zhejiang University, advancing lens miniaturization, high transmittance, and high-resolution optical performance.
Request a Quote or Technical Consultation
Tell us your laser wavelength, scan field requirements, and application. Our optical engineers will recommend the left F-Theta lens or discuss custom solutions.