Changchun Realpoo Photoelectric Co.,Ltd.
N-BK7 Half Ball Lens
Product Overview
N-BK7 half ball lenses are precision optical components made from high-quality borosilicate crown glass. They are widely used in imaging, laser systems, fiber coupling, and other optical applications requiring excellent transparency, low dispersion, and precise spherical geometry.
A Half Ball lens is widely used on fiber communication, endoscopy, microscopy, optical pick-up devices, and laser measurement systems.
We have following size in stock, more size please contact our service people:
Diameter(mm): 0.5, 0.92, 1.0, 1.5, 1.8, 1.95, 2.0, 2.5, 2.75, 2.9, 3.5, 4.5, 17.0, 25.0.
Key Features
- Material: Made from N-BK7 optical glass, known for its excellent transmission and durability.
- Spherical Design: Half ball shape ensures efficient focusing and light redirection.
- High Transparency: Optimal performance in the visible and near-infrared (NIR) spectrum (350 nm to 2000 nm).
- Precision Surface Quality: Scratch-dig rating of 40-20 and surface flatness up to λ/4.
- Customizable Sizes: Available in various diameters and tolerances.
Applications
- Imaging Systems: Enhances image quality in cameras, microscopes, and telescopes.
- Laser Systems: Used for beam focusing and collimation in low to medium power laser setups.
- Fiber Coupling: Ensures precise light coupling into optical fibers.
- Biomedical Instruments: Applied in optical coherence tomography (OCT) and other diagnostic devices.
- Optical Sensors: Improves the performance of sensors in industrial and research settings.
Specifications
| Parameter | Value |
|---|---|
| Material | N-BK7 Optical Glass |
| Diameter Range | 1 mm to 25 mm |
| Surface Quality | 40-20 Scratch-Dig |
| Surface Flatness | λ/4 @ 633 nm |
| Refractive Index | 1.5168 at 587.6 nm |
| Transmission Range | 350 nm to 2000 nm |
| Tolerance | ±0.02 mm (diameter) |
Customization Options
- Coatings: Anti-reflective (AR) coatings for specific wavelengths.
- Sizes: Custom diameters and tolerances available.
- Designs: Modified geometries for specialized applications.
Advantages
- High optical clarity and low inclusions.
- Durable and environmentally stable.
- Compact and lightweight design.
- Versatile applications in optical and industrial fields.
Why Choose Us?
- High-precision manufacturing process.
- Custom solutions tailored to specific requirements.
- Competitive pricing with fast global delivery.
- Comprehensive technical support and consultation.
Call to Action (CTA)
Discover the exceptional performance of N-BK7 half ball lenses for your optical applications. Contact us for custom designs, bulk orders, and technical inquiries.
