Lithium Fluoride (LiF) Lenses
Precision Optics for Vacuum UV to Infrared Applications
Overview
Lithium Fluoride (LiF) lenses are ideal for optical systems requiring high transmission from the vacuum ultraviolet (VUV) region through the infrared (IR) spectrum. With exceptional optical clarity in the 0.104 μm to 7 μm range, LiF lenses are widely used in spectroscopy, laser systems, and X-ray diffraction analysis.
Factory Standards of LiF Lenses
Material |
High-purity Lithium Fluoride (LiF) |
Transmission Range |
0.104 μm (VUV) to 7 μm (IR) |
Refractive Index |
1.3872 at 1.0 μm |
Density |
2.64 g/cm³ |
Melting Point |
870°C |
Crystal Structure |
Cubic (commonly cut along (100) or (110) planes) |
Surface Quality |
60-40 scratch/dig (MIL-PRF-13830B standard) |
Lens Types |
Plano-convex and biconvex spherical lenses |
Mounting Height |
1 mm to 50 mm |
Manufacturing & Processing
LiF crystals are grown using an improved Bridgman method for enhanced purity and optical performance. Due to the material’s brittleness and relatively low softening point (~600°C), careful handling and precision polishing are essential in the lens fabrication process.
Typical Applications of Lithium Fluoride Lenses
Optical Instrumentation
- High-transmittance windows and lenses for VUV, visible, and IR light
- Components in monochromators, spectrometers, and laser optics
- Ideal for scientific-grade optical assemblies
Scientific and Industrial Use
- X-ray monochromators for crystal defect analysis
- Support for lattice structure investigation via X-ray diffraction systems
Applied in high-energy physics and material science research
Handling & Maintenance
To maintain optical performance and material integrity:- Avoid moisture exposure to prevent hydration and surface degradation
- Protect from high-energy radiation to prevent color center formation
- Use in controlled environments to mitigate thermal stress
Available Models
- Model Name: lens-LiF
- Material: Optical-grade Lithium Fluoride
- Application Range: Vacuum UV to infrared systems
Why Choose Avantier’s LiF Lenses?
✔ Broad-spectrum transmission (VUV–IR)
✔ Precision-crafted to industry standards
✔ Reliable in high-performance optical setups
Request a Quote or Contact Our Optical Experts
Looking for customized Lithium Fluoride optical components? Reach out to our technical team for tailored solutions in advanced optical designs.
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