Silver Mirror Pack, Borofloat, 25.4 mm, λ/10, 480-20,000 nm, Qty 10

This is a 10-pack of the very popular Broadband Silver Mirrors. These mirrors are excellent general purpose, broadband reflectors. The 25.4 mm (1.0 inch) diameter mirrors are 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 μm. This mirror has a λ/10 surface flatness and a 20-10 surface quality.

Specifications

Technical Specs

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
λ/10 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>93% @ 480-1100 nm;R_avg>98.5%, R_min>97% @ 1.1-20 µm
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

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
λ/10 at 632.8 nm

Angle of Incidence
0-45°
Clear Aperture
≥central 80% of diameter
Back Surface
Ground
Reflectivity
R_avg>96%, R_min>93% @ 480-1100 nm;R_avg>98.5%, R_min>97% @ 1.1-20 µm
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

Resources & Downloads

Other

10D20ER.2-PK RoHS Certificate(708.7 kB, PDF)
ER.2 Raw Data.xlsx(205.4 kB, XLSX)

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