Aluminum Mirror

Aluminum Mirror

Lightweight aluminum mirrors are used in optical and technical instruments in a variety of applications

Lightweight aluminum mirrors are used in optical and technical instruments in a variety of applications. Important advantages are the low weight and the lower costs. Aluminum alloys allow a very low microroughness, which is better than 3 nm rms. The large deposits of aluminum and its compatibility are a major commercial advantage. It offers a compromise between thermal stability, durability and low cost.

Datasheet

General

Aluminum 6061 (AlMgSi alloy) or RSA is the preferred material for optical applications. Its low density makes it an ideal material for all lightweight applications.

Material properties
Chemical Al
Atomic number 13
Atomic weight 26,981
Density g/cm^3 2,7
Melting temperature °C 585
Thermal capacity J*kg^(-1)*K^(-1) 897
Thermal conductivity W*m^(-1)*K^(-1) 170-200
Standard tolerances
Diameter mm +/- 0,1
Thickness mm +/- 0,1
Parallelism arc min < 3
Surface Quality
Figure up to 1/10 λ
Roughness < 10 nm Ra
Free aperture 90 % of diameter

Supply forms

  • plan
  • spherical / aspherical
  • cylindrical

Available Options

  • Weight reduction patterns as desired
  • Drilling pattern as desired

Coatings

  1. Metallic
    • Gold for IR systems
    • Silver / Aluminum
  2. Laser coatings
    • CO2 laser mirror
    • YAG/Fiber/Diode Laser Mirror

Other optical components

Parabolic mirrors
Parabolic mirrors
High-Power Laser mirrors
High-Power Laser mirrors
Concave mirror
Concave mirror
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