
CO₂ Laser Optics/Parts
CO₂ Laser Doublet F-Theta Scan Lens
Doublet F-Theta scanning lenses provide better performance than a singlet. It has more even spot size and less spot distortion over the scan field. We use ZnSe or GaAs for this series of scan lenses. Lens adaptors for major scan head providers are available upon request.
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CO₂ Laser Doublet F-Theta Scan Lens
Eternal Optics manufactures high-performance CO₂ Laser Doublet F-Theta Scan Lenses designed for precision 10.6 μm CO₂ laser marking, engraving, cutting, and industrial laser processing systems. Featuring a multi-element doublet optical design, our F-Theta lenses provide improved aberration correction, reduced distortion, and enhanced scanning accuracy compared with standard single-element designs.
Our 10.6µm Doublet F-Theta Scan Lenses are optimized for CO₂ laser applications and manufactured using high-quality infrared optical materials, including ZnSe (Zinc Selenide). Advanced AR coatings designed for the CO₂ wavelength provide high transmission, low absorption, and excellent laser damage resistance for stable long-term operation.
The doublet optical structure improves field uniformity and beam focusing performance across the entire scan area, making these lenses ideal for applications requiring higher precision, better spot quality, and consistent laser processing results.
Product features include:
- Optimized for 10.6 μm CO₂ Lasers
- Doublet Optical Design for Improved Correction
- Reduced Field Distortion
- High Precision Scanning Performance
- ZnSe Infrared Optical Elements
- High Transmission AR Coating
- Excellent Laser Damage Threshold
- Compatible with Galvanometer Scanner Systems
Eternal Optics provides both standard and Custom CO₂ Laser Doublet F-Theta Scan Lenses according to customer specifications, including:
- Scan Field Size
- Focal Length
- Working Distance
- Laser Power Requirements
- Optical Material
- Coating Performance
- Scanner Compatibility
- Mechanical Dimensions
- OEM Optical Design
Our CO₂ Doublet F-Theta Scan Lenses are widely used in:
- Precision CO₂ Laser Marking Systems
- Industrial Laser Engraving Machines
- Acrylic and Wood Laser Cutting Equipment
- Textile Laser Processing
- Packaging and Product Marking
- High-Accuracy Laser Manufacturing
- OEM CO₂ Laser Systems
With advanced infrared optical design, precision manufacturing capabilities, and coating technology, Eternal Optics is a professional China manufacturer and global supplier of CO₂ Laser Doublet F-Theta Scan Lenses, 10.6µm ZnSe Laser Scan Optics, and Custom CO₂ Laser Optical Components for laser equipment manufacturers, system integrators, and industrial users worldwide.
| Part No. | EFL (mm) | Scan Field (mm) | Input Beam Ф (1/e2) (mm) | Max. Scan Angle (±deg) | Thread | M1-M2 (mm) | WD (mm) | Wavelength |
|---|---|---|---|---|---|---|---|---|
| SL2-9.4-50-100ZW-D20 | 100.0 | 50x50 | 20.0 | 20.6 | M85x1 | 26.4 | 131.3 | 9.4um |
| SL2-9.4-70-100ZR | 100.0 | 70X70 | 14.0 | 28.5 | M85x1 | 20.0 | 105.6 | 9.4um |
| SL2-9.4-140-200ZR | 200.0 | 140x140 | 15.0 | 28.0 | M85x1 | 20.0 | 219.0 | 9.4um |
| SL2-9.4-F300ZR-D20 | 300.0 | 170X170 | 20.0 | 22.9 | M85x1 | 20.0 | 326.0 | 9.4um |
| SL2-9.4-F380Z-D30 | 380.0 | 220x220 | 30.0 | 23.2 | M102x1 | 36.0 | 425.8 | 9.4um |
| SL2-10.6-35-60GR | 60.5 | 35x35 | 12.0 | 25.0 | M85x1 | 17.0 | 57.8 | 10.6um |
| SL2-10.6-50-80GR | 80.0 | 50x50 | 14.0 | 25.0 | M85x1 | 20.0 | 75.7 | 10.6um |
| SL2-10.6-70-122GR | 122.0 | 70x70 | 14.0 | 23.0 | M85x1 | 20.0 | 135.9 | 10.6um |
| SL2-10.6-110-150ZR | 150.0 | 105x105 | 14.0 | 28.0 | M85x1 | 20.0 | 161.7 | 10.6um |
| SL2-10.6-110-170GR | 170.0 | 110x110 | 10.0 | 23.0 | M85x1 | 13.0 | 185.1 | 10.6um |
| SL2-10.6-F170ZR-D20 | 170.0 | 110x110 | 20.0 | 25.0 | M85x1 | 22.8 | 177.1 | 10.6um |
| SL2-10.6-F200ZR | 200.0 | 140x140 | 14.0 | 28.8 | M85x1 | 16.0 | 229.4 | 10.6um |
| SL2-10.6-140-220GR | 220.0 | 140x140 | 14.0 | 25.0 | M85x1 | 16.0 | 243.7 | 10.6um |
| SL2-10.6-F250ZR | 250.0 | 175x175 | 14.0 | 28.4 | M85x1 | 20.0 | 286.1 | 10.6um |
| SL2-10.6-F300ZR-D20 | 300.0 | 170x170 | 20.0 | 28.0 | M85x1 | 20.0 | 327.8 | 10.6um |
| SL2-10.6-300-420AZR | 420.0 | 300x300 | 16.0 | 20.0 | M85x1 | 20.0 | 466.0 | 10.6um |
| SL2-10.6-300-420GR | 420.0 | 300x300 | 11.8 | 28.0 | M85x1 | 20.0 | 463.1 | 10.6um |
| SL2-10.6-350-490ZR | 490.0 | 350x350 | 18.0 | 27.7 | M85x1 | 25.7 | 535.2 | 10.6um |
| SL2-10.6-F560ZR-D30 | 560.0 | 400x400 | 30.0 | 24.6 | M85x1 | 25.0 | 604.8 | 10.6um |
| SL2-10.6-F700ZR-D30 | 700.0 | 500x500 | 30.0 | 19.6 | M85x1 | 30.0 | 763.7 | 10.6um |
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- 주소
- NO.3, huanghe road, Zhengzhou, Henan, China
- 운영 시간
- Mon - Fri, 8:30 - 18:00 (GMT+8)
관련 제품

CO₂ Laser Telecentric Scan Lens
Telecentric scanning lenses are special configurations in which the arrangement of optics is designed to focus down the beam so that it is always perpendicular to the flat field. This is accomplished by ensuring that the system 'stop' is located at the front focal point of the lens system. The 'stop' is located at the position where the beam is deflected from the axis. In a single-axis scanning system, this location is at the scanning mirror. For two-axis scanning, the stop is mid -way between the mirrors. Adaptors for major scan head providers are available upon request.
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CO₂ Laser Singlet F-Theta Scan Lens
F-Theta lenses are commonly used in conjunction with galvanometer scanning mirrors in laser engraving, cutting, and marking systems. Typically the F-Theta distortion of the lens is kept less than 1% so that it is able to produce a precise spot in the flat field on the image plane.
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