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Optical Components from Tower Optical

Do you have special requirements or would like individual consultation? Please contact our engineers at:

Sales
Phone: +49 89 321412-43
sales[at]imm-photonics.de


Circular, Square, Rectangular Mirrors

All of the following mirrors have a protected Aluminum coating applied to the front surface.

Specifications Standard Grade High Grade
Material BK7 grade A BK7 grade A or Fused Silica
Diameter 10 mm to 50 mm 10 mm to 50 mm
Dimensional tolerance + 0.0 mm / - 0.1 mm + 0.0 mm / - 0.1 mm
Flatness λ/5 @ 632.8 nm λ/10 @ 632.8 nm
Surface quality 40/20 scratch/dig 10/5 scratch/dig
Thickness tolerance 0.2 mm 0.2 mm
Parallelism < 3 arc min < 3 arc min

Hot and Cold Mirrors

Features of Hot Mirrors:

  • High transmission for the visible range
  • High reflection for infrared
  • Removes heat
  • Uses Borofloat® type glass
  • Dielectric Coating
  • AOI´s of 0° or 45°
  • Custom mirrors to your configuration


Features of Cold Mirrors:

  • High reflection for the visible range
  • High transmission for infrared
Specifications Hot Mirrors Cold Mirrors
Material Borosilicate type glass Borosilicate type glass
Size 15 mm to 300 mm 15 mm to 300 mm
Thickness 3.3 mm 3.3 mm
Mirror coating Dielectric multilayer Dielectric multilayer
Transmission Transmission average > 85 % for 425 nm to 700 nm Transmission average > 85 % for 425 nm to 1000 nm
Reflection Reflection average > 90 % for 750 nm to 1050 nm Reflection average > 90 % for 400 nm to 700 nm
Surface finish 80/50 scratch/dig 80/50 scratch/dig
Flatness λ/2 @ 633 nm per inch λ/2 @ 633 nm per inch
Protective bevel 0.3 mm x 45° 0.3 mm x 45°
Photonic solutions engineered for your success