Zinc Selenide (ZnSe) Lenses
• Low absorption in the red end of the visible spectrum • Not hygroscopic • Quite stable in the laboratory environment Zinc selenide (ZnSe) is the most popular material for infrared applications. Due to a very wide… Read more →
Volume discount
- 5–9 units −5%
- 10+ units −10%
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catalog variants — refine the spec to narrow it down.
| SKU | Focal Length · Diameter · Type · Focal length | |
|---|---|---|
| 561-6122 | 25.4 mm·ø 12.7 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$145
|
| 561-6192 | 38.1 mm·ø 19.1 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$151
|
| 561-6193 | 50.8 mm·ø 19.1 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$151
|
| 561-6251 | 50.8 mm·ø 25.4 mm·Plano-Convex |
1 in stock
Ships in: 2–5 calendar days
$226
|
| 561-6252 | 63.5 mm·ø 25.4 mm·Plano-Convex |
1 in stock
Ships in: 2–5 calendar days
$226
|
| 561-6253 | 76.2 mm·ø 25.4 mm·Plano-Convex |
1 in stock
Ships in: 2–5 calendar days
$226
|
| 561-6254 | 101.6 mm·ø 25.4 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$226
|
| 561-6255 | 127 mm·ø 25.4 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$220
|
| 561-6256 | 150 mm·ø 25.4 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$220
|
| 561-6257 | 200 mm·ø 25.4 mm·Plano-Convex |
1 in stock
Ships in: 2–5 calendar days
$220
|
| 561-6258 | 254 mm·ø 25.4 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$220
|
| 561-6265 | 500 mm·ø 25.4 mm·Plano-Convex |
3 in stock
Ships in: 2–5 calendar days
$220
|
| 561-6275 | 1000 mm·ø 25.4 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$220
|
| 561-6382 | 63.5 mm·ø 38.1 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$365
|
| 561-6385 | 127 mm·ø 38.1 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$357
|
| 561-6388 | 190.5 mm·ø 38.1 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$357
|
| 561-6502 | 127 mm·ø 50.8 mm·Plano-Convex |
Out of stock
Ships in: 62–65 calendar days
$671
|
| 561-6765 | ø 76.2 mm·Plano-Convex·254 mm |
Out of stock
Ships in: 58–61 calendar days
$1,608
|
| 565-6122 | 38.1 mm·ø 12.7 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$249
|
| 565-6251 | 25.4 mm·ø 25.4 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$260
|
| 565-6252 | 38.1 mm·ø 25.4 mm·Meniscus |
2 in stock
Ships in: 2–5 calendar days
$260
|
| 565-6253 | 50 mm·ø 25.4 mm·Meniscus |
1 in stock
Ships in: 2–5 calendar days
$252
|
| 565-6255 | 63.5 mm·ø 25.4 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$252
|
| 565-6256 | 75 mm·ø 25.4 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$252
|
| 565-6257 | 100 mm·ø 25.4 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$252
|
| 565-6258 | 127 mm·ø 25.4 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$252
|
| 565-6382 | 63.5 mm·ø 38.1 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$400
|
| 565-6385 | 127 mm·ø 38.1 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$400
|
| 565-6388 | 254 mm·ø 38.1 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$400
|
| 565-6502 | 127 mm·ø 50.8 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$708
|
| 565-6765 | 254 mm·ø 76.2 mm·Meniscus |
Out of stock
Ships in: 62–65 calendar days
$1,678
|
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Specifications
Physical Properties
| Crystal type | cubic |
| Density, g / cm³ | 5.27 |
| Melting point, °C | 1525 |
| Refractive index @ 8-13 µm | n = 2.417-2.385 |
| Refractive index @ 10.6 µm | n = 2.403 |
| Transmission band, µm | 0.6÷22 |
| Bulk absorption coefficient cm⁻¹@ 10.6 µm | 0.6-1.0×10⁻³ |
| Coefficient of linear thermal expansion, °C-¹ | 8.56×10⁻⁶ |
| Material | ZnSe |
| Surface quality | 40-20 scratch & dig (MIL-PRF-13830B) |
| Diameter tolerance | +0.0 -0.13 mm |
| Thickness tolerance | ±0.1 mm |
| Focal length tolerance | ±2% @ 10.6 µm |
| Coating | both surfaces AR coated @ 10.6 µm, / R ≤ 0.5% per surface |
Classification
| Wavelength | UV|IR |
Description
- Low absorption in the red end of the visible spectrum
- Not hygroscopic
- Quite stable in the laboratory environment
Zinc selenide (ZnSe) is the most popular material for infrared applications. Due to a very wide transmission range covering 0.6-22 µm chemical vapor deposition grown ZnSe as a high optical quality material is used to manufacture optical components (windows, mirrors, lenses) for high power IR lasers.
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