The 10D20ER.2 Broadband Silver Mirror is an excellent general purpose, broadband reflector. This 25.4 mm (1.0 inch) diameter mirror is made from a 6.0 mm thick Borofloat® 33 substrate which is coated with the ER.2 silver coating. Borofloat® 33 has low thermal expansion and is an excellent substrate for most applications. Our ER.2 protected silver coating is composed of a low emissivity silver film fully encapsulated by a multilayer dielectric stack to prevent oxidation. This coating has excellent broadband reflectivity in the IR, while maintaining very good performance in the visible and near IR. The 10D20ER.2 has an average reflectivity greater than 96% from 480–1100 nm and greater than 98.5% from 1.1–20 &mu,m. This mirror has a &lambda,/10 surface flatness and a 15-5 surface quality. This product is also available in 10-piece saving pack 10D20ER.2-PK.
Технические характеристики
- Wavelength Region Broadband
- Wavelength Range 480-20000 nm
- Mirror Shape Round
- Diameter 25.4 mm
- Mirror Size Ø25.4 mm
- Thickness 6.0 mm
- Material Borofloat® 33
- Coating Type Protected Silver
- Coating Code ER.2
- Surface Quality 15-5 scratch-dig
- Surface Flatness &lambda,/10 at 632.8 nm
- Angle of Incidence 0-45°
- Clear Aperture &ge,central 80% of diameter
- Back Surface Ground
- Reflectivity Ravg>96%, Rmin>93% @ 480-1100 nm,Ravg>98.5%, Rmin>97% @ 1.1-20 m
- Damage Threshold 1 J/cm² with 10 ns pulses at 1064 nm, 20Hz
- Diameter Tolerance +0/-0.13 mm
- Thickness Tolerance ±0.25 mm
- Chamfers 0.25–0.76 mm face width
- Chamfers Angle Tolerance 45° ±15°
- Cleaning See How to Clean Optics
