High Precision Optical Focusing Lens for Laser Applications
Brand Name:LONGWAY
Certification:ISO9001
Model Number:LW160922
Minimum Order Quantity:700 pieces
Payment Terms:T/T,Western Union
Place of Origin:Shanghai, China
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Shanghai Shanghai China
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Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
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High Precision Optical Focusing Lens for Laser Applications
1. Material Composition
- Lens substrate: Fused silica (SiO₂) or N-BK7 optical glass for high laser damage threshold (10-15 J/cm² @1064nm).
- Coatings: Multi-layer AR coatings (R<0.25% per surface) optimized for common laser wavelengths (e.g., 355nm, 532nm, 1064nm).
- Mounting: Anodized aluminum or titanium barrels for thermal stability.
2. Key Properties
- Surface accuracy: λ/10 wavefront distortion for diffraction-limited performance.
- Focal length: 10-500mm with ±1% tolerance (telecentric options available).
- Aperture: f/1.4 to f/8 with <0.1% spherical aberration.
- Temperature range: -50°C to +300°C (coefficient matched to laser systems).
3. Core Functions
- Beam shaping: Converts Gaussian beams to flat-top profiles for uniform energy distribution.
- Spot size control: Achieves micron-scale focal spots (e.g., 5μm @532nm).
- Collimation: Corrects divergence in fiber-coupled laser systems.
4. Applications
- Laser cutting/welding: Focuses high-power CO₂/YAG lasers (1-6kW).
- Medical lasers: Used in ophthalmology (LASIK) and dermatology devices.
- LIDAR systems: Optimizes signal-to-noise ratio in automotive/industrial scanners.
| Item | Optical Convex Focusing Lens |
| Material | Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass |
| Diameter Tolerance | +0/-0.2 mm |
| Thickness Tolerance | +/-0.2 mm |
| Processed | by grinding, polishing |
| Surface Quality | 80/50,60/40 |
| Material Quality | no scratches and air bubble |
| Transmission | above 90% |
| Chamfer | 0.1-0.3 mm x 45 degree |
| Surface Coating | Available |
| Usage | Photography, Lighting system, Electronic apparatus |
High Precision Optical Focusing Lens for Laser Applications
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