High-precision BK7 optical window from Ealing Technologies with dual-sided anti-reflection (AR/AR) coating optimized for broad mid-IR transmission from 1–13.5 µm. Ideal for laser, spectroscopy, thermal imaging, and IR optical systems requiring minimal reflection and high transmittance.
🛠️ Key Features
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High-Quality Optical Material: Precision-grade BK7 for excellent homogeneity and surface accuracy.
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AR/AR Broadband Coating: Dual-sided anti-reflection coatings minimize Fresnel losses across 1–13.5 µm wavelengths, boosting throughput and reducing ghost reflections.
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Precision Thickness: 3.9 mm substrate thickness for mechanical stability in optical assemblies.
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Standard Diameter: 1/2″ (12.7 mm) diameter matches common lens mounts and holders.
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Low Scatter & Absorption: Optimized for IR applications with low scatter and absorption loss.
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Durable Coatings: Rugged AR coatings with good environmental durability for lab and industrial use.
📊 Specifications
| Parameter | Specification |
|---|---|
| Material | BK7 Optical Glass |
| Diameter | 0.500″ (12.7 mm) |
| Thickness | 3.9 mm |
| Surface Quality | Typical 60-40 (scratch-dig) |
| Flatness | λ/10 @ 633 nm (typical) |
| Parallelism | < 3 arcmin |
| Coating Type | AR/AR broadband mid-IR |
| Wavelength Range | 1–13.5 µm |
| Transmission | High throughput across specified band |
| Weight | 1 lbs |
|---|---|
| Dimensions | 9 × 6 × 1 in |
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