CO2 Laser Marking Focusing Lens
A CO2 Laser Marking Focusing Lens is an essential optical component used in CO2 laser marking systems.These lenses are typically made from materials like ZnSe (Zinc Selenide) or other high-quality infrared-grade substrates, offering excellent transmission and durability for the 10.6μm wavelength emitted by CO2 lasers.
Description
CO2 Laser Marking Focusing Lens Description
The CO2 Laser Marking F-Theta Scan Lens is a specialized optical component designed to ensure precise and consistent laser marking, engraving, or cutting over a flat field. Unlike traditional focusing lenses, the F-Theta lens uses advanced optical technology to maintain focus across the entire marking area, making it ideal for high-speed laser marking and scanning applications.
A CO2 Laser Marking Focusing Lens is an essential optical component used in CO2 laser marking systems.
It focuses the laser beam onto the material's surface, ensuring precision and efficiency in engraving, cutting, or marking processes.
These lenses are typically made from materials like ZnSe (Zinc Selenide) or other high-quality infrared-grade substrates, offering excellent transmission and durability for the 10.6μm wavelength emitted by CO2 lasers.

CO2 Laser Marking Focusing Lens Applications
1. Laser Marking and Engraving:
Used for high-speed marking on materials like wood, acrylic, glass, leather, paper, and plastics.
2. Barcode and QR Code Marking:
Ideal for creating scannable, permanent codes for traceability and product identification.
3. Large-Area Marking:
Enables uniform marking over large surfaces without distortion.
4. Industrial Cutting and Engraving:
Suitable for cutting and engraving intricate patterns on non-metallic materials.
Suitable for a wide range of materials, including:
- Wood
- Acrylic
- Glass
- Leather
- Plastics
- Paper
- Fabrics
CO2 Laser Marking Focusing Lens Features
High-Quality Materials
Constructed from ZnSe (Zinc Selenide) or other premium infrared-grade materials, offering excellent transmission for CO2 laser wavelengths (10.6μm).
01
Durable Coating
Anti-reflective and high-durability coatings minimize energy loss and protect the lens from damage, even in demanding environments.
02
Material Compatibility
Wood
Acrylic
Glass
Leather
Plastics
Paper
Fabrics
03
Wide Scanning Area
Available in various field sizes (e.g., 110x110mm, 200x200mm, 300x300mm) to suit diverse applications and material dimensions.
04
CO2 Laser Marking Focusing Lens Parameters
| Model | Focal Length(mm) |
Scan Field(mm) | Incident Angle | Mounting Thread(mm) |
Input beam EP(mm) |
Working Distance (mm) |
| 10.6-50-75 | F=75 | 50x50 | 25.0° | M85x1 | 14 | 75.9 |
| 10.6-70-100 | F=100 | 70x70 | 25.0° | M85x1 | 14 | 107.4 |
| 10.6-110-150 | F=150 | 110x110 | 25.0° | M85x1 | 14 | 152.7 |
| 10.6-140-200 | F=200 | 140x140 | 25.0° | M85x1 | 14 | 204.3 |
| 10.6-175-250 | F=250 | 175x175 | 25.0° | M85x1 | 12 | 256 |
| 10.6-2150-300 | F=300 | 210x210 | 25.0° | M85x1 | 12 | 308.6 |
| 10.6-250-350 | F=350 | 250x250 | 25.0° | M85x1 | 12 | 369.2 |
| 10.6-300-430 | F=430 | 300x300 | 25.0° | M85x1 | 12 | 444 |

We also supply a lot optional accessories





Fume extractor

Water chiller


FAQ
1. What materials is the CO2 F-Theta lens made of?
Most CO2 F-Theta lenses are made from Zinc Selenide (ZnSe) or Silicon (Si), which offer excellent transmission for the CO2 laser wavelength (10.6μm). These materials are often coated with anti-reflective coatings for improved performance and durability.
2. How do I choose the right focal length for my application?
The focal length determines the marking field size. For example:
Focal Length of 100mm: Provides a smaller marking area but higher marking precision.
Focal Length of 200mm or 300mm: Offers a larger marking area but with slightly reduced precision.
Choose the focal length based on your material size and required precision.
3. Can I use an F-Theta lens for materials other than non-metals?
CO2 F-Theta lenses are optimized for non-metallic materials such as wood, glass, acrylic, paper, and leather. For metallic materials, fiber laser systems with specific F-Theta lenses are more suitable.
4. Can the F-Theta lens be used with other laser systems?
F-Theta lenses are specific to the laser wavelength they are designed for. CO2 F-Theta lenses are optimized for 10.6μm wavelengths and should not be used with other types of lasers, such as fiber or UV lasers, without proper compatibility.
5. What industries commonly use CO2 F-Theta lenses?
Packaging: For marking barcodes, QR codes, and labels.
Textiles: For engraving patterns or cutting fabrics.
Signage: For engraving and cutting acrylic and other non-metallic materials.
Arts and Crafts: For intricate engraving on wood, glass, or leather.
Please send inquiry to get more details and quotations.
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