Wholesale Optical LED Laser BK7 Biconcave Custom Double Concave Lens
| Materials | BK7 or other optical glass, quartz, sapphire, Ge, Si, ZnSe, CaF2 etc |
|---|---|
| Diameter | 1.5~300mm |
| Radius | R0.8mm-∞ |
| Focal length | -30000mm~+30000mm |
| Center thickness tolerance | +/-0.01mm |
| Diameter tolerance | +/-0.005mm |
| Focal length tolerance | +/-1% |
| Surface accuracy | N=1~3 |
| Irregularity | ΔN=0.1~0.5 |
| Decenter | 3''~1'' |
| Surface quality | 10/5~60/40 |
| Coating | Upon request |
| Application area | Imaging, Lighting, Laser etc |
- Precise beam divergence: The biconcave shape allows controlled expansion of LED or laser light with minimal spherical aberration.
- High optical transmission: BK7 glass ensures excellent light throughput across visible and near-infrared wavelengths.
- Customizable design: Diameter, focal length, and curvature can be tailored to specific system requirements.
- Durable and stable: BK7 is resistant to thermal stress and mechanical deformation, ensuring long-term optical reliability.
- Enhanced system efficiency: Optional anti-reflective coatings reduce reflection losses and improve light utilization.
- Versatile optical component: Suitable for integration into LED illumination systems, laser modules, and scientific instrumentation.
- LED illumination systems: Beam shaping and divergence control for uniform light distribution.
- Laser systems: Beam expansion, collimation, or divergence in optical experiments and laser modules.
- Scientific instrumentation: Microscopy, interferometry, and precision optical assemblies.
- Photonic research: Used in laboratory setups requiring high-quality diverging optics.
- Industrial sensing: LED and laser-based measurement devices for distance, alignment, or profiling.
- Education & prototyping: Optical kits and educational laboratories for beam experiments.
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