Lithium Fluoride Wedge PLi01-
Lithium fluoride wedge windows have good optical properties and can be used as window pieces to separate the environment on both sides, isolating the interior and exterior of the instrument, thereby protecting internal components. It can also be used to change the deflection path of light, with high transmittance and reflectivity in the ultraviolet and infrared bands. Lithium fluoride has a low refractive index in infrared materials, and its transmission spectrum ranges from 120nm to 7000nm. Lithium fluoride wedge windows come in various sizes and specifications to meet different application needs. Can be coated with reflective film, anti reflective film, filter film, spectroscopic film, polarizing film, and metallization film systems.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dia | 2-300 mm |
| ThK | 0.12-60 mm |
| Wedge Angle | Custom |
| Surface Quality | 60-40 |
| PV [@632.8nm] | λ/2 |
| Clear Aperture | >90% |
| Diameter Tolerance | +0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Wedge Angle Tolerance | ±10′ |
| Substrate Material | Lithium Fluoride（LiF） |
| Transmission Range | 0.11-7μm |
| Bevel | 0.35 mm |
| Coating | Uncoated |
| REACH | Compliant |
| ROHS | Compliant |
| Transmission Range [Substrate Material：Lithium Fluoride（LiF）] | 0.11-7μm |
| Transmittance [Substrate Material：Lithium Fluoride（LiF）；@0.6μm] | >94.8%@0.6μm |
| Reflection Loss [Substrate Material：Lithium Fluoride（LiF）；@0.6μm(both surfaces)] | 5.2%@0.6μm(both surfaces) |
| Absorption Coefficienet [Substrate Material：Lithium Fluoride（LiF）；@4.3μm] | 5.9×10⁻³@4.3μm |
| Structure [Substrate Material：Lithium Fluoride（LiF）] | Cubic Crystal System |
| Cleavage Planes [Substrate Material：Lithium Fluoride（LiF）] | <100> |
| Density [Substrate Material：Lithium Fluoride（LiF）] | 2.639 g/cm³ |
| Melting Point [Substrate Material：Lithium Fluoride（LiF）] | 848 ℃ |
| Thermal Conductivity [Substrate Material：Lithium Fluoride（LiF）；@314K] | 11.3 @ 314K |
| Thermal Expansion [Substrate Material：Lithium Fluoride（LiF）；@283K] | 37.0 @ 283K |
| Knoop Hardness [Substrate Material：Lithium Fluoride（LiF）] | 415 kg/mm² |
| Specific Heat Capacity [Substrate Material：Lithium Fluoride（LiF）] | 1562 J/(kg×K) |
| Dielectric Constant [Substrate Material：Lithium Fluoride（LiF）；@1 MHz] | 7.33 @ 1 MHz |
| Young's Modulus (E) [Substrate Material：Lithium Fluoride（LiF）] | 64.79 GPa |
| Shear Modulus(G) [Substrate Material：Lithium Fluoride（LiF）] | 55.14 GPa |
| Bulk Modulus(K) [Substrate Material：Lithium Fluoride（LiF）] | 62.03 GPa |
| Poisson Coefficient [Substrate Material：Lithium Fluoride（LiF）] | 0.22 |
| Solubility [Substrate Material：Lithium Fluoride（LiF）；@20℃] | 2.7g @ 20℃ |
| Molecular Weight [Substrate Material：Lithium Fluoride（LiF）] | 25.9394 g/mol |
Applications
Datasheet
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