Aluminium Mirror

Aluminium Mirrors - Lightweight Optics

Leightweight aluminium mirrors are used in optical systems for a variety of reasons. Some advantages lightweight mirrors include shorter thermal equilibrium times, reduced weight, and lower system costs. Aluminium can easily be processed with SPDT technology. Especially novle aluminium alloys allow for surfaces with a very smooth micros roughness, even better than 3 nm rms.

Aluminium mirrors may by optimized for lightweight systems by applying weight reduction structures on the back.

Aluminium polygonals are the best choice for precision measurement solutions and optical systems. They are available from Diameter 20 to 300 mm.

Our mirrors are coated for maximum reflectivity. PLEIGER’s manufacturing capability covers optics for CO2-lasers and optical instruments. Coating options are protected gold or silver and high power coatings for CO2 and YAG lasers.

Aluminium mirrors are available plano and spherical.


alu scanner



CO2 laser mirror

Aluminium Properties / Standard Specifications / Options

Electrical Properties:

Electrical resistivity ( µ Ω cm ): 2,65

Temperature coefficient ( K-1 ): – 0.0039


Physical Properties

Density ( g cm-3 ): 2,70

Melting point ( °C ): 585


Thermal Properties

Thermal conductivity @23 °C ( W m-1 K-1 ): 150-202

Dimensional tolerances:

Diameter: +/- 0,1 mm

Thickness: +/- 0,2 mm

Paralleslism: < 3 arc min

Clear aperture: 90 % of diameter


Surface Quality:

S-D: 40-20

Figure: 1/40 wave at 10,6 µm

Surface form:

– plano

– spherical



– internal cooling

– Coatings [more]

Do you need more information? Please contact us.

+49 2324 398406

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