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Auer Lighting offers various shapes and designs of coated filters using BOROFLOAT® 33, a floated borosilicate glass 3.3. The material combines superior transmittance with high thermal and mechanical stability.

Technical Data

Linear thermal expansion coefficient α 20/300°C [K-1]3.3 x 10-6
Permanent operating temperature [°C]450
Short-time operating temperature [°C]500
Refraction index nd (λ= 587.6 nm)1.471