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Materials



Soda-lime glass


Thickness range 0.5 - 10.0 mm
Expansion coefficient (CTE) 0.5 x 10-6 K-1
Refraction index (nD) 1.52
Main characteristics High light transmission in VIS (slightly greenish)

Borosilicate glass


Type Borofloat 33 ®
Thickness range 0.5 - 15 mm
Expansion coefficient (CTE) 3.25 x 10-6 K-1
Refraction index (nD) 1.47
Main characteristics Very high light transmission in VIS and UV (virtually white)
high temperature stability


Glass ceramics


Type Robax ®
Thickness range 0.5 - 4.0 mm
Expansion coefficient (CTE) 0.0 ± 0.5 x 10-6 K-1
Refraction index (nD) n/a
Main characteristics Medium light transmission in VIS (amber)
very high temperature stability
Type Robax Color HT ®
Thickness range 0.5 - 5.0 mm
Expansion coefficient (CTE) 0.0 ± 0.15 x 10-6 K-1
Refraction index (nD) n/a
Main characteristics Low light transmission in VIS (dark red)
very high temperature stability
Type Zerodur ®
Thickness range 1.0 - 50.0 mm
Expansion coefficient (CTE) 0.0 ± 0.1 x 10-6 K-1 (reduced expansion upon request)
Refraction index (nD) 1.54
Main characteristics High light transmission in VIS (slightly amber)
very high temperature stability

Quartz glass


Thickness range 1.0 - 50.0 mm
Expansion coefficient (CTE) 0.5 x 10-6 K-1
Refraction index (nD) 1.46
Main characteristics High light transmission in UV and VIS
high temperature stability

Additional materials


Plan Optik manufactures scale carriers from all available glass types, glass ceramics and quartz glass by well-known manufacturers in accordance with customer requirements.



* All technical data in accordance with the details supplied by the manufacturers of the raw materials - without liability - subject to modification.