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High Surface Accuracy Mirror

High Surface Accuracy Mirror is realized by optimizing the flatness of the substrate material, thickness and coating parameters. A surface accuracy of less than λ/8 after coating can be guaranteed.

★ High Surface Flatness, <λ/8
★ High Reflectivity, R>99.8%
★ High Damage Threshold
★ RoHS Compliant

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Description

Dimension Tolerance +0.0/-0.2mm
Thickness Tolerance ±0.2mm
Surface Quality 60/40 scratch and dig
Clear Aperture >90%
Flatness <λ/[email protected] (after coating)
Chamfer Protective<0.5mmx45°
Coating Dielectric HR coating on one surface,
Ravg>99.8%@single wavelength,
Ravg>99.5%@dual wavelength ,
rear surface ground or inspection polished
Damage Threshold >5J/cm2, 20ns, 20Hz, @1064nm
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