Dielectric Mirror, ValuMax, Borofloat, 50.8 mm Square, 488-694 nm
The 20SD520BD.1 is a ValuMax® Dielectric Visible Broadband Mirror 50.8 x 50.8 mm square, with a thickness of 12.0 mm, and flatness of λ/10. By taking advantage of advanced polishing techniques and our high volume manufacturing, ValuMax® mirrors are truly cost effective. This family of mirrors boasts seven standard metallic and dielectric broadband coatings, covering the UV, visible, and IR Specifications
Wavelength Region
VIS
Wavelength Range
488-694 nm
Mirror Shape
Square
Mirror Size
50.8 x 50.8 mm
Thickness
12.7 mm
Material
Borofloat® 33
Coating Type
Broadband Dielectric
Coating Code
BD.1
Surface Quality
60-40 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
Rs,avg>99%, Rp,avg>98% @ 488-694 nm
Damage Threshold
500 W/cm² CW, 3 J/cm², 10 ns pulses, 10 Hz, at 532 nm
Thickness Tolerance
±0.25 mm
Chamfers
0.38-1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
Wavelength Region
VIS
Wavelength Range
488-694 nm
Mirror Shape
Square
Mirror Size
50.8 x 50.8 mm
Thickness
12.7 mm
Material
Borofloat® 33
Coating Type
Broadband Dielectric
Coating Code
BD.1
Surface Quality
60-40 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
Rs,avg>99%, Rp,avg>98% @ 488-694 nm
Damage Threshold
500 W/cm² CW, 3 J/cm², 10 ns pulses, 10 Hz, at 532 nm
Thickness Tolerance
±0.25 mm
Chamfers
0.38-1.14 mm face width
Chamfers Angle Tolerance
45° ±15°
Cleaning
