25mm Dia. λ/10 ZERODUR Uncoated Mirror Substrate

Product Details Precision ZERODUR Substrates λ/10 Flatness Low Coefficient of Thermal Expansion TECHSPEC ZERODUR Mirror Substrates are well suited for applications where temperature fluctuation is a concern. The ZERODUR substrates have a coefficient of thermal expansion (CTE) of ±0.10 x 10-6/°C, which is an order of magnitude lower than most glass types. The low CTE allows these mirrors to have a consistent reflected wavefront, even when exposed to environments with varying temperature or illumination sources with changing intensity. TECHSPEC ZERODUR Mirror Substrates feature precision polished substrates with λ/10 flatness and 20-10 surface quality. Specifications General Type: Mirror Substrate Physical & Mechanical Properties Diameter (mm): 25.00 +0.00/-0.20 Thickness (mm): 4.00 ±0.20 Clear Aperture (%): 90 Parallelism (arcsec): 30 Edges: Ground Back Surface: Commercial Polish Bevel: Protective as needed Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More ZERODUR Coating: Uncoated Surface Flatness (P-V): λ/10 Surface Quality: 20-10 Material Properties Coefficient of Thermal Expansion CTE (10 -6 /°C): 0.1 Regulatory Compliance Certificate of Conformance: View ×