
Fiber Laser Optics/Parts
Fiber Laser Focusing Lens
This series of focusing lenses are made of BK7 (H-K9L) or fused silica; light enters from one side and exits from the opposite side. Its purpose is to modify the wavefront curvature of the light, and focus the laser beam onto a very small precise spot size so that it is widely used in engraving graphic images, welding metal pieces together or cutting various types of materials. Following lenses are coated with the most common anti-reflective coating at 1060- 1080/808/532/355/266nm.
- Diameter Tolerance
- +0/-0.13mm
- Thickness Tolerance
- ±0.25mm
- Focal Length Tolerance
- ±2%
- Edge Thickness Variation (ETV)
- ≤3 arc min.
- Clear Aperture
- >90%
- Surface Flatness
- λ/4 per 1" Dia @632.8nm
- Surface Quality
- 40-20 S-D
- AR Coating
- R<0.2% per surface
Applications
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Description du produit
Fiber Laser Focusing Lens
Eternal Optics manufactures high-performance Fiber Laser Focusing Lenses designed for high-power fiber laser systems operating at 1030–1080 nm, including the widely used 1064 nm and 1070 nm wavelengths. Our precision focusing lenses are engineered to deliver excellent beam focusing performance, high transmission efficiency, low optical distortion, and reliable operation in demanding industrial laser applications.
Made from premium optical materials such as fused silica, our Fiber Laser Focus Lenses feature advanced anti-reflective (AR) coatings optimized for near-infrared laser wavelengths. These coatings help minimize optical loss, reduce thermal effects, and improve laser processing stability during continuous high-power operation.
Our product range includes various Fiber Laser Focusing Lens solutions with different focal lengths, diameters, and optical specifications to meet the requirements of different laser cutting heads, welding systems, and industrial processing equipment.
Eternal Optics also provides Custom Fiber Laser Focusing Lenses according to customer drawings, equipment requirements, and application parameters. Custom options include:
- Lens Diameter and Thickness
- Focal Length
- Optical Material Selection
- Wavelength Coating (1030–1080 nm)
- Surface Quality
- Flatness
- AR Coating Performance
- OEM Packaging and Manufacturing
Our Fiber Laser Focus Lenses are widely used in:
- Fiber Laser Cutting Machines
- Fiber Laser Welding Systems
- Laser Cleaning Equipment
- Metal Processing Applications
- Industrial Laser Automation
- Laser Marking Systems
- OEM Laser Cutting Heads
With advanced optical manufacturing technology, precision coating capabilities, and strict quality control, Eternal Optics is a trusted supplier of Fiber Laser Focusing Lenses, 1064nm Laser Focus Lenses, and Custom Fiber Laser Optics for global laser equipment manufacturers, distributors, and industrial users.
| Part No. | Dia (mm) | EFL (mm) | ET (mm) | Material | Wavelength |
|---|---|---|---|---|---|
| LBK-0.5-15-ET2 | 12.7 | 15.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-20-ET2 | 12.7 | 20.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-30-ET2 | 12.7 | 30.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-50-ET2 | 12.7 | 50.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-75-ET2 | 12.7 | 75.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-100-ET2 | 12.7 | 100.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-120-ET2 | 12.7 | 120.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-140-ET2 | 12.7 | 140.0 | 2.0 | BK7 | 1064nm |
| LBK-0.5-160-ET2 | 12.7 | 160.0 | 2.0 | BK7 | 1064nm |
| LBK-1-25-ET2.5 | 25.4 | 25.0 | 2.5 | BK7 | 1064nm |
| LBK-1-35-ET2 | 25.4 | 35.0 | 2.0 | BK7 | 1064nm |
| LBK-1-40-ET2.2 | 25.4 | 40.0 | 2.2 | BK7 | 1064nm |
| LBK-1-50-ET2 | 25.4 | 50.0 | 2.0 | BK7 | 1064nm |
| LBK-1-60-ET2 | 25.4 | 60.0 | 2.0 | BK7 | 1064nm |
| LBK-1-70-ET2 | 25.4 | 70.0 | 2.0 | BK7 | 1064nm |
| LBK-1-75-ET2 | 25.4 | 75.0 | 2.0 | BK7 | 1064nm |
| LBK-1-100-ET2 | 25.4 | 100.0 | 2.0 | BK7 | 1064nm |
| LBK-1-125-ET2 | 25.4 | 125.0 | 2.0 | BK7 | 1064nm |
| LBK-1-150-ET2 | 25.4 | 150.0 | 2.0 | BK7 | 1064nm |
| LBK-1-175-ET2 | 25.4 | 175.0 | 2.0 | BK7 | 1064nm |
| LBK-1-200-ET2 | 25.4 | 200.0 | 2.0 | BK7 | 1064nm |
| LBK-1-250-ET2 | 25.4 | 250.0 | 2.0 | BK7 | 1064nm |
| LBK-1-300-ET2 | 25.4 | 300.0 | 2.0 | BK7 | 1064nm |
| LBK-1-350-ET2 | 25.4 | 350.0 | 2.0 | BK7 | 1064nm |
| LBK-1-400-ET2 | 25.4 | 400.0 | 2.0 | BK7 | 1064nm |
| LBK-1-500-ET2 | 25.4 | 500.0 | 2.0 | BK7 | 1064nm |
| LBK-1-750-ET5 | 25.4 | 750.0 | 5.0 | BK7 | 1064nm |
| LBK-30-80-ET2 | 30.0 | 80.0 | 2.0 | BK7 | 1064nm |
| LBK-30-100-ET2 | 30.0 | 100.0 | 2.0 | BK7 | 1064nm |
| LBK-30-120-ET2 | 30.0 | 120.0 | 2.0 | BK7 | 1064nm |
| LBK-50-100-ET3 | 50.0 | 100.0 | 3.0 | BK7 | 1064nm |
| LBK-50-150-ET3 | 50.0 | 150.0 | 3.0 | BK7 | 1064nm |
| LBK-50-200-ET3 | 50.0 | 200.0 | 3.0 | BK7 | 1064nm |
| LBK-50-250-ET2 | 50.0 | 250.0 | 2.0 | BK7 | 1064nm |
| LBK-50-300-ET2 | 50.0 | 300.0 | 2.0 | BK7 | 1064nm |
| LBK-50-400-ET2 | 50.0 | 400.0 | 2.0 | BK7 | 1064nm |
| LBK-50-450-ET2 | 50.0 | 450.0 | 2.0 | BK7 | 1064nm |
| LBK-50-500-ET2 | 50.0 | 500.0 | 2.0 | BK7 | 1064nm |
| LBK-50-600-ET2 | 50.0 | 600.0 | 2.0 | BK7 | 1064nm |
| LBK-50-800-ET2 | 50.0 | 800.0 | 2.0 | BK7 | 1064nm |
| LBK-50-1000-ET2 | 50.0 | 1000.0 | 2.0 | BK7 | 1064nm |
| LFS-19-25-ET2 | 19.0 | 25.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-19-30-ET2 | 19.0 | 30.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-19-50-ET2 | 19.0 | 50.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-35-ET2 | 25.4 | 35.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-50-ET2 | 25.4 | 50.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-75-ET2 | 25.4 | 75.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-100-ET2 | 25.4 | 100.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-125-ET2 | 25.4 | 125.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-150-ET2 | 25.4 | 150.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-200-ET2 | 25.4 | 200.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-250-ET2 | 25.4 | 250.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-300-ET2 | 25.4 | 300.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-500-ET2 | 25.4 | 500.0 | 2.0 | Fused Silica | 1030 -1090nm |
| LFS-1-1000-ET2 | 25.4 | 1000.0 | 2.0 | Fused Silica | 1030 -1090nm |
Applications
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- sales@eternaloptics.com
- Téléphone
- +86-15617808937
- Adresse
- NO.3, huanghe road, Zhengzhou, Henan, China
- Heures d'ouverture
- Mon - Fri, 8:30 - 18:00 (GMT+8)
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