Description
Dimension Tolerance +0.0/-0.2mm
Thickness Tolerance ±0.2mm
Clear Aperture >90%
Flatness λ/4@632.8nm per 25mm range
Centration <3 arc minutes
Surface Quality 60/40 scratch and dig
Coating Metal coating on one surface, rear surface ground or inspection polished
Enhanced Aluminum: Ravg>90%@400-700nm
Protected Aluminum: Ravg>87%@400-1200nm
Protected Silver: Ravg>95%@400-12000nm
Protected Gold: Ravg>98%@2000-12000nm
Damage Threshold >1J/cm2, 20ns, 20Hz, @1064nm
Metal Coated Concave Mirror
Specifications
| Reflective Coating: | Protected Aluminum, Protected Silver, Protected Gold |
|---|---|
| Substrate: | BK7, Fused Silica |
| Average Reflectance: | 90 % |
| Wavelength Range: | 400 – 12000 nm |
| Surface Flatness: | lambda/4 |
| Surface Quality: | 60-40 scratch-dig |
| Diameter: | 25.4 mm |
| Thickness: | 3 mm |
| Shape: | Round |
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Frequently Asked Questions
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