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Silver Mirror
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Protected silver (Ag) mirrors deliver exceptional broadband reflectance across visible and near-infrared spectra, making them ideal for high-sensitivity optical systems. We deposit high-purity silver onto BK7 or fused silica substrates, then apply a dense SiO₂ dielectric overcoat to block moisture and oxidation—ensuring stable performance even in demanding environments. Achieving Ravg > 97.5% from 450 – 2000nm, our silver mirrors provide significantly lower optical loss than standard aluminum mirrors, supporting cleaner, more efficient light delivery.
Parameters
Specification
Material
Fused Silica & BK7
Dimension Range 3~200mm Dimension Tolerance
+/-0.1mm
Surface Quality 40-20 Surface Irregularity λ/10@632.8nm Parallelism ＜ 30" Clear Aperture > 90% of diameter Bevel 0.2 mm x 45° Coating Protected Silver Coating: Ravg>95%@400-12000nm
Enhanced Silver Coating: Ravg>98.5%@700-1100nmProtected Silver Mirrors –Ultra-Flat Broadband Performance
Designed with a durable SiO₂ or MgF₂ dielectric overcoat, our protected silver mirrors effectively resist oxidation and minor mechanical damage while maintaining excellent optical stability.
- Average reflectivity: >97.5% (450 nm–2000 nm); >98% (2 µm–20 µm)
- Superior to aluminum: Far flatter spectral response versus standard protected aluminum (87–92% reflectivity in visible–NIR)
- Achromatic & low-scattering: Preserves high image fidelity for broadband imaging and low-light applications
- Operating environment: Stable performance in dry, controlled laboratory conditions; avoid prolonged exposure to humidity >60% RH
Ideal for laser beam steering, microscopy, spectroscopy, and astronomical telescopes requiring consistent, high reflectivity.
Enhanced Silver Mirrors –Targeted Peak Reflectivity
For maximum efficiency at a specific wavelength, our enhanced silver mirrors use custom multilayer dielectric coatings to boost reflectivity.
- Peak performance: Up to 99% reflectivity at user-specified wavelengths (400 nm–20 µm)
- Design trade-off: Optimized for single-wavelength or narrowband systems; reflectivity curve is less flat than standard protected silver.
- Customization: Coatings tailored to maximize target wavelength performance while minimizing broadband compromise.
- Average reflectivity: >97.5% (450 nm–2000 nm); >98% (2 µm–20 µm)
Silver Mirror
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Address：4655th FANRONG ROAD,HIGH-TECH AREA, CHANG CHUN, 130012，China
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