03 Mar 2006 Both Laser Quality and Analytical Quality Circular & Square Optical Windows are available in UV Grade Fused Silica (FS) & BK7 Glass. Both Laser Quality and Analytical Quality Circular & Square Optical Windows are available in UV Grade Fused Silica (FS) & BK7 Glass. Optical Windows are flat polished windows typically used to isolate environments while allowing light to pass relatively unimpeded. Optical Windows are generally used for view ports or sealing and or protecting other components within an optical assembly, instrument or laser.
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