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Fused silica and fused quartz flat optics and windows

Flat Optics Substrates and Windows From Stock
Fused Silica and Fused Quartz polished substrates, plates, windows and wafers are available from Valley Design. We offer optical surface finishes to 10/5. Custom sizes can be shipped in just a few days. Common size windows are in stock.

Ultra-thin polished Fused Silica substrates 1″ square and 2″ square are available for immediate delivery from stock. Thicknesses are 0.002″ (50 microns), 0.003″ (75 microns), 0.004″ (100 microns) and 0.005″ (125 microns).

Other thicknesses in 1″ and 2″ square configuration available from stock are 0.010″, 0.015″, 0.020″ (0.5 mm), 0.025″ and 0.040″ (1 mm).

3″ (75 mm) diameter and 4″ (100 mm) diameter Fused Silica substrates are semi-finished and can be completed to any thickness in just a few days.

A surface finish of 20/10 and thickness tolerances of ± 0.001″, 0.0005″, 0.0004″, 0.0003″and 0.0002″ are typically requested. Tighter tolerances are available on special order.

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