Searching...
Menu
Precision F-Theta & Imaging Lenses · Over 30 Years

Precision Optics
Built for Industrial
Performance.

ZD Optics engineers high-precision F-Theta scan lenses and industrial imaging lenses -- delivering consistent beam quality, predictable processing results, and reliable optical performance for laser and vision systems worldwide.

3

Laser Wavelengths Supported

>98%

Maximum Optical Transmittance

3 µm

Minimum Focused Spot Size

100% Pre-Shipment Inspection

Each lens is supplied with individual reports for transmitted wavefront PV, focused spot diameter and ellipticity, and overall transmittance

30+

Years of Precision
Manufacturing

20+

Years Supplying NEC,
Panasonic & Nikon

1000W

Max Supported
Laser Power

100%

Outgoing Inspection
with Full Reports

Trusted by Industry Leaders

NEC Panasonic Nikon Zhejiang University · College of Optical Science
Product Portfolio

F-Theta Laser Scanning Lenses

We offer a full range of scan lenses covering the 3 major wavelengths of 355 nm, 532 nm, and 1064 nm, with scan fields ranging from 21 mm to 580 mm, supporting diverse laser processing applications such as metal 3D printing, precision marking, cutting, and welding.

1064 nm · IR Laser

IR F-Theta Series

Scan fields 21.9-355 mm, transmittance up to >97%. Universal M85×1 mount for all major galvo systems.

  • Spot size from 6 µm
  • Telecentricity ≤2.65°
  • 4 standard models
MARKING · CUTTING · WELDING · ADDITIVE MANUFACTURING
355 nm · UV Laser

UV F-Theta Series

Ultra-fine micro-processing with spot sizes down to 3 µm. Transmittance >96% for precision UV applications.

  • Min spot size 3 µm
  • Transmittance >96%
  • Compact scan fields
PCB · MICRO-DRILLING · SCRIBING
532 nm · Green Laser

Green F-Theta Series

Fine processing at visible wavelengths. Spot size down to 5 µm with >95% transmittance for green laser systems.

  • Spot size from 5 µm
  • Transmittance >95%
  • Visible-wavelength optimized
Fine Marking · Thin-Film Processing
500 W - 1000 W · High Power

High-Power Series

ZDG-FT1655-328 -- 650 mm EFL, 410×410 mm scan range. Coating LIDT 5.0 J/cm². CW and USP compatible.

  • Transmittance >98%
  • LIDT 5.0 J/cm² (1 ns)
  • 410 × 410 mm scan field
HIGH-POWER CUTTING · WELDING · METAL 3D PRINTING

Laser Field Lens Full Series Parameter Comparison

Model Code Wavelength EFL Scan Field Φ Scan Angle Spot Φ1/e² Back Working Distance Flange Distance Input Beam Telecentricity Interface
SL-1064-23-53 S018 1064nm 53 mm 21.9 mm 11.9° 10 µm 61.5 mm 73.5 mm 10 mm 1.48° M85×1
SL-1064-43-70 S026 1064nm 70.3 mm 43 mm 18.1° 14 µm 87.6 mm 120.7 mm 10 mm 3.03° M85×1
SL-1064-78-100 S017 1064nm 100.1 mm 78.3 mm 23.2° 13 µm 114.7 mm 184.1 mm 15 mm 2.648° M85×1
SL-1064-118-163 S028 1064nm 163.3 mm 118.8 mm 21.5° 23 µm 219 mm 292 mm 14 mm 4.84° M85×1
SL-1064-355-350 S029 1064nm 350 mm 355 mm 29.4° 46 µm 403.6 mm 443 mm 15 mm 18.22° M85×1
SL-1064-580-650 F650 1064nm 650 mm 580.1 mm 24.5° 64 µm 586.5 mm 681.07 mm 20 mm 22.5° M85×1
SL-532-22-53 S016 532nm 53 mm 21.7 mm 11.9° 5 µm 62.9 mm 76.2 mm 10 mm 1.657° M85×1
SL-532-333-330 S012 532nm 330 mm 333.1 mm 28.8° 20 µm 368 mm 409.9 mm 16 mm 18.55° M85×1
SL-355-22-53 S021 355nm 53 mm 21.7 mm 11.9° 3 µm 66.72 mm 80.58 mm 10 mm 1.505° M85×1
SL-355-144-170 S032 355nm 170 mm 144.2 mm 25.1° 11 µm 232.9 mm 313 mm 10 mm 4.797° M85×1

Notes

  • All parameters are based on Gaussian beam (M²≈1). Actual beam quality will affect focused spot size.
  • Shipment includes: Lens transmitted wavefront PV value report, focused spot diameter and ellipticity test report, lens overall transmittance report.
  • Flange distance tolerance ±1.5%, effective focal length tolerance ±1.5%.
Why ZD Optics

Engineering Advantages
You Can Measure.

Every specification is backed by strict in-house manufacturing controls and university-level R&D -- not just marketing claims.

High-Precision Focus

Built with premium fused silica and NIFS-U, featuring precision optical design and center-field wavefront error as low as 0.0044λ. Each lens is 100% inspected before shipment and includes reports for transmitted wavefront PV, focused spot diameter, and ellipticity.

High Transmittance & Damage Threshold

Up to >98% total transmittance. Coating LIDT reaches 5.0 J/cm² for demanding high-power and ultrashort-pulse applications.

Standardized M85×1 Interface

Universal thread mount compatible with all major galvo scanner systems -- plug-and-play integration, no custom adapters needed.

100% Outgoing Inspection

Full-process QC with transmitted wavefront measurement, spot analysis, and coating process control on every single unit.

ZD Optics precision lens manufacturing facility

0.0044λ

Wavefront Error at Center Field

5.0 J/cm²

Coating LIDT (1 ns, 50 Hz)

Quality You Can Verify

Every lens that leaves our facility carries a full inspection report -- not just a certificate.

Wavefront Inspection

Transmitted wavefront PV value measured for every lens produced.

Spot Analysis

Focused spot diameter and ellipticity reporting to ensure consistent beam quality.

Coating Process Control

Strict AR coating process control ensuring stable optical performance and high LIDT.

Full-Process QC

Advanced CNC grinding, polishing, and comprehensive quality inspection at every stage.

Who We Serve

Built for Industrial B2B Customers

We partner with organizations that demand consistent optical performance at production scale.

Laser Equipment Manufacturers

OEMs integrating F-Theta lenses into marking, cutting, and welding systems at volume.

Laser Processing Providers

Service bureaus requiring high-performance scan lenses for reliable, high-volume production runs.

Machine Vision Integrators

System integrators using industrial imaging lenses for precision inspection and measurement.

Regional Distributors

Wholesale partners supplying precision optical components to end-users across global markets.

B2B Inquiries Welcome

Ready to Source
Precision F-Theta Lenses?

Whether you need standard models or a fully custom OEM solution -- our engineering team is ready to discuss your optical requirements.

Or reach us directly: [email protected] · +86 150 0500 6315