Barium fluoride (BaF2 lens) crystal belongs to cubic crystal system with outstanding moisture resistance, melting point of 1280℃, which allows BaF2 components work under extreme high temperature, refractive index varies slightly in a broad wavelength range, wide transmission range, with great transmission 90% from 0.2 μm to 10 μm spectrum range.
With its stable optical properties and good mechanical properties, BaF2 is also considered as a suitable material for SWIR lens component manufacturing. In addition, BaF2 crystal has good scintillation properties (the crystal can simultaneously measure the energy spectrum and time spectrum, with high resolution), has a broad application prospect in high energy physics, nuclear physics and nuclear medicine.
Spoptic provides various off-the-shelf BaF2 stock, diameter ranges from 10mm up to 39mm. Also we take custom specs. Please talk to our technicians today and find out what we can help you with.
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Barium Fluoride |
COMMERCIAL GRADE |
FACTORY STANDARD |
PRECISION GRADE |
|
Diameter Tolerance(mm) |
±0.05 |
±0.03 |
±0.0125 |
|
Center Thickness(mm) |
±0.01 |
±0.03 |
±0.025 |
|
Parallelism (Arc min) |
6 |
<3 |
<1 |
|
Cosmetic(MIL-C-13830A) |
100 - 80 |
40 - 20 |
10 - 5 |
|
Figure Tolerance inλ(Pow/irreg) |
2.5 - 1.5 |
2 - 1 |
1/0.25 |
|
Coating (T% avg) |
Depends on Different Working Wavelength |
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Material |
Barium Fluoride |
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