UV Fused Silica Biconcave Lenses
Negative Focal Length: Our biconcave lenses have a negative focal length, making them ideal for diverging collimated light beams to a virtual focal point.
Versatile Applications: They are suitable for divergence of collimated or focused light beams, beam diameter modulation, correction of spherical aberration in optical assemblies, and increasing the focal lengths of lens groups.
Superior Material: UV Fused Silica (JGS1) offers exceptional transmittance to UV wavelengths, while also being widely transparent to visible and NIR wavelengths (200-2200 nm).
Robust Thermal Properties: These lenses exhibit high-temperature endurance and low thermal expansion, ensuring stable performance in harsh working conditions.
Additional Benefits: UV-fused silica lenses have few bubbles/striae, high homogeneities, chemical inertness, mechanical hardness, and advantageous birefringent properties.
Applications: Optical Instruments, Beam Expanders, Aberration Correction, Focal Length Adjustment, UV Applications, etc.
Kingwin Optics offers a range of high-quality biconcave lenses, including our UV Fused Silica Double Concave Lenses. These lenses are designed with two identical inward-bent spherical surfaces, featuring equal radii of curvature, and provide unique optical properties suitable for various applications.
Specifications:
| Type | Biconcave Lenses |
| Material | UV Fused Silica(JGS1) |
| Clear Aperture | >90% |
| Diameter Tolerance | +0.00/-0.1mm |
| Thickness Tolerance | ±0.1mm |
| Surface Irregularity | λ/4-λ @ 633 nm |
| Centering Error | 3 arcmin |
| Focal Length Tolerance | +/-1% |
| Chamfer | 0.2mm x 45 degree |
Features:
- Negative Focal Length: Our biconcave lenses have a negative focal length, making them ideal for diverging collimated light beams to a virtual focal point.
- Versatile Applications: They are suitable for divergence of collimated or focused light beams, beam diameter modulation, correction of spherical aberration in optical assemblies, and increasing the focal lengths of lens groups.
- Superior Material: UV Fused Silica (JGS1) offers exceptional transmittance to UV wavelengths, while also being widely transparent to visible and NIR wavelengths (200-2200 nm).
- Robust Thermal Properties: These lenses exhibit high-temperature endurance and low thermal expansion, ensuring stable performance in harsh working conditions.
- Additional Benefits: UV-fused silica lenses have few bubbles/striae, high homogeneities, chemical inertness, mechanical hardness, and advantageous birefringent properties.
Applications:
- Optical Instruments: Used in various optical instruments for divergence and modulation of light beams.
- Beam Expanders: Ideal for Galilean beam expanders, providing efficient beam diameter modulation.
- Aberration Correction: Effective in correcting spherical aberration in complex optical assemblies.
- Focal Length Adjustment: Used to increase the focal lengths of lens groups in optical systems.
- UV Applications: Particularly suitable for applications involving UV wavelengths due to the material’s exceptional UV transmittance.
Kingwin Optics’ stock UV Fused Silica Bi-concave Lenses are currently available in uncoated versions. However, we can provide custom V-coatings that exhibit optimized transmission and low-cost MgF2 AR coatings with various transmission wavelengths upon request. In addition to our stocked N-BK7 and UV Fused Silica Biconcave lenses, we also offer Standard N-BK7 biconcave lenses and custom biconcave lenses made from BaF2, CaF2, MgF2, Ge, ZnSe, Sapphire, and other optical materials.
