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Dielectric Mirrors

Dielectric Mirrors offer near total reflection, minimising losses in nearly all optical systems. These coatings are very durable, easily cleaned, and highly resistant to laser damage. Available either for broadband or narrowband, they operate efficiently over 0–45° angle of incidence: AOI=0°, R>99.8%; AOI=45°, R>99.5% (Rs>99.9%, Rp>99.2%).

Specifications:
Material: BK7 grade A optical glass
Dimension Tolerance: +/-0.2mm
Clear Aperture: >85%
Parallelism: <1 arc minute
Surface Quality: 60-40 S/D
Flatness: λ/4 per 25mm @632.8nm
Coating: R > 98% on S1, R=(Rs+Rp)/2
Bevel: 0.25mm x 45deg