Barium Fluoride (BaF2) Lenses
• Useful transmission range covers 0.265-10 µm • Most resistant to high energy radiation among fluorides listed in this catalogue Barium fluoride (BaF₂) is used for optical windows, prisms and lenses transmitting from… Read more →
Volume discount
- 5–9 units −5%
- 10+ units −10%
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Listed in
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| SKU | Focal Length · Diameter · Type | |
|---|---|---|
| 541-7105 | 25 mm·ø 12.7 mm·Plano-convex |
8 in stock
Ships in: 2–5 calendar days
$103
|
| 541-7204 | 40 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$168
|
| 541-7205 | 50 mm·ø 25.4 mm·Plano-convex |
10 in stock
Ships in: 2–5 calendar days
$155
|
| 541-7207 | 75 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$139
|
| 541-7210 | 100 mm·ø 25.4 mm·Plano-convex |
5 in stock
Ships in: 2–5 calendar days
$126
|
| 541-7212 | 125 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7213 | 150 mm·ø 25.4 mm·Plano-convex |
15 in stock
Ships in: 2–5 calendar days
$126
|
| 541-7214 | 200 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7225 | 250 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7230 | 300 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7240 | 400 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7250 | 1000 mm·ø 25.4 mm·Plano-convex |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 541-7275 | 750 mm·ø 25.4 mm·Plano-convex |
2 in stock
Ships in: 2–5 calendar days
$126
|
| 542-7105 | -25 mm·ø 12.7 mm·Plano-concave |
Out of stock
Ships in: 62–65 calendar days
$103
|
| 542-7205 | -50 mm·ø 25.4 mm·Plano-concave |
Out of stock
Ships in: 62–65 calendar days
$155
|
| 542-7207 | -75 mm·ø 25.4 mm·Plano-concave |
Out of stock
Ships in: 62–65 calendar days
$139
|
| 542-7210 | -100 mm·ø 25.4 mm·Plano-concave |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 542-7225 | -250 mm·ø 25.4 mm·Plano-concave |
Out of stock
Ships in: 62–65 calendar days
$126
|
| 542-7250 | -1000 mm·ø 25.4 mm·Plano-concave |
27 in stock
Ships in: 2–5 calendar days
$126
|
| 542-7270 | -2000 mm·ø 25.4 mm·Plano-concave |
9 in stock
Ships in: 2–5 calendar days
$126
|
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Specifications
Specifications
| Material | BaF₂ |
| Surface quality | 60-40 scratch & dig (MIL-PRF-13830B) |
| Clear aperture | 90% of diameter |
| Diameter tolerance | +0.0, -0.5 mm |
| Focal length | +-2%@3 µm |
| Surface irregularity | λ / 4 @ 633 nm |
| Centration | 3 arcmin |
Physical Properties
| Crystal type | cubic |
| Density, g / cm³ | 4.89 |
| Melting point, °C | 1386 |
| Refractive index @ 0.265 µm | n = 1.51217 |
| Refractive index @ 10.3 µm | n = 1.39636 |
| Transmission range, µm | 0.15-12 |
Classification
| Wavelength | UV|IR |
Description
- Useful transmission range covers 0.265-10 µm
- Most resistant to high energy radiation among fluorides listed in this catalogue
Barium fluoride (BaF₂) is used for optical windows, prisms and lenses transmitting from ultraviolet into infrared, it can be used as infrared laser window or lens. BaF₂ is recommended for use as a vacuum ultraviolet window where high radiation resistance is required. BaF₂ is less soluble than LiF, but relatively more soluble than MgF₂ and CaF₂.
