Telescope Blank

Zerodur lightweight blank

ZERODUR Schott, low thermal expansion glass-ceramic, is the material of choice for a wide variety of high-tech applications. From performing significant roles in navigation systems to improving the performance of microchips, Zerodur Schott,...

Fused silica lightweight blank

This is a fused silica JGS2 lightweight blank with diameter of 736mm. The raw material weighs 100KG, after machining, the lightweight blank is about 44.5KG. The back structure is a little bit complicated which makes the good balance of the overall...

Fused silica mirror blank

Fused silica glass, with its large transparency range, low thermal expansion, high resistance to optical damage, high refractive index homogeneity, and ease of polishing has found use as an vital optical material in applications as varied as space...

Zerodur mirror blank

Zerodur is the primary material used due to its low coefficient of thermal expansion (CTE), which ensures that the mirror's shape remains stable even under varying environmental conditions, its characteristics make it an ideal material for precision...

ULE mirror blank

Corning ULE Glass (Ultra-Low Expansion Glass) 7972 is a Titania-silicate glass with near zero expansion characteristics that have made it the material of choice in unique applications such as machine tool reference blocks, gratings, reference...