Circular Optical Windows are available as both Laser Quality and Analytical Quality polish designated as LQ (Laser Quality) and AQ (Analytical Quality).  Circular Optical Windows are available in UV Grade Fused Silica (FS) & BK7 Glass materials*.  Circular Optical Windows are flat polished round optical 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. *Also see our VUV grade MgF2, CaF2 & Crystal Quartz Windows for Vacuum UV (VUV) applications.  For more information about Optical Windows, refer to our Optics Tutorial page.      OPTICAL WINDOW SPECIFICATIONS Material : BK7 Glass & UV Grade Fused Silica (FS)      Diameter (Dia = Ø) Tolerance: ± 0.25mm Thickness Tolerance: ± 0.25mm   Surface Figure:  LQ = L/10 @ 633 nm nominal                         AQ = ~3-5 waves @ 633 nm nominal Surface Finish:  LQ = 10-5 both surfaces                         AQ = 60-40 both surfaces Clear aperture: central 85% Parallelism:  LQ = < 5 arc minutes                    AQ = < 15 arc minutes  Chamfer: ~ 0.30mm @45 deg. (LQ = Laser Quality / AQ = Analytical Quality) All dimensions in mm                   DIA Ø THICK (T) QUALITY MATERIAL PRODUCT # PRICE ORDER 38.1 3.2 Laser Quality Window           BK7                LQB3832OW       $155.00      LQB3832OW      38.1 3.2 Analytical Quality Window  BK7 AQB3832OW $55.00 AQB3832OW 38.1 3.2 Laser Quality Window Fused Silica   LQF3832OW  $180.00 LQF3832OW  38.1 3.2 Analytical Quality Window Fused Silica   AQF3832OW  $70.00 AQF3832OW  38.1 6.4 Laser Quality Window BK7 LQB3864OW  $155.00 LQB3864OW  38.1 6.4 Analytical Quality Window BK7 AQB3864OW $55.00 AQB3864OW  38.1 6.4 Laser Quality Window Fused Silica LQF3864OW  $180.00 LQF3864OW  38.1 6.4 Analytical Quality Window Fused Silica   AQF3864OW  $100.00 AQF3864OW  38.1 9.5 Laser Quality Window BK7 LQB3895OW  $155.00 LQB3895OW  38.1 9.5 Analytical Quality Window BK7 AQB3895OW $55.00 AQB3895OW  38.1 9.5 Laser Quality Window Fused Silica LQF3895OW  $180.00 LQF3895OW  38.1 9.5 Analytical Quality Window Fused Silica   AQF3895OW  $110.00 AQF3895OW  50.8 3.2 Laser Quality Window BK7 LQB5032OW  $185.00 LQB5032OW  50.8 3.2 Analytical Quality Window BK7 AQB5032OW $60.00 AQB5032OW  50.8 3.2 Laser Quality Window Fused Silica LQF5032OW  $225.00 LQF5032OW  50.8 3.2 Analytical Quality Window Fused Silica   AQF5032OW  $105.00 AQF5032OW  50.8 6.4 Laser Quality Window BK7 LQB5064OW $185.00 LQB5064OW 50.8 6.4 Analytical Quality Window BK7 AQB5064OW $60.00 AQB5064OW  50.8 6.4 Laser Quality Window Fused Silica LQF5064OW  $225.00 LQF5064OW  50.8 6.4 Analytical Quality Window Fused Silica   AQF5064OW  $120.00 AQF5064OW  50.8 9.5 Laser Quality Window BK7 LQB5095OW  $185.00 LQB5095OW 50.8 9.5 Analytical Quality Window BK7 AQB5095OW $70.00 AQB5095OW 50.8 9.5 Laser Quality Window Fused Silica LQF5095OW  $225.00 LQF5095OW  50.8 9.5 Analytical Quality Window Fused Silica   AQF5095OW  $135.00 AQF5095OW  50.8 12.7 Laser Quality Window BK7 LQB5013OW $185.00 LQB5013OW 50.8 12.7 Analytical Quality Window BK7 AQB5013OW $80.00 AQB5013OW 50.8 12.7 Laser Quality Window Fused Silica LQF5013OW  $225.00 LQF5013OW  50.8 12.7 Analytical Quality Window Fused Silica   AQF5013OW $155.00 AQF5013OW 76.2 9.5 Laser Quality Window BK7 LQB7695OW  $380.00 LQB7695OW  76.2 9.5 Analytical Quality Window BK7 AQB7695OW $95.00 AQB7695OW 76.2 9.5 Laser Quality Window Fused Silica LQF7695OW  $525.00 LQF7695OW  76.2 9.5 Analytical Quality Window Fused Silica   AQF7695OW $235.00 AQF7695OW 76.2 12.7 Laser Quality Window BK7 LQB7613OW $380.00 LQB7613OW 76.2 12.7 Analytical Quality Window BK7 AQB7613OW $100.00 AQB7613OW 76.2 12.7 Laser Quality Window Fused Silica   LQF7613OW  $525.00 LQF7613OW  76.2 12.7 Analytical Quality Window Fused Silica   AQF7613OW  $285.00 AQF7613OW  101.6 9.5 Laser Quality Window BK7 LQB10195OW $590.00 LQB10195OW 101.6 9.5 Analytical Quality Window BK7 AQB10195OW  $120.00 AQB10195OW  101.6 9.5 Laser Quality Window Fused Silica   LQF101950W  $645.00 LQF101950W  101.6 9.5 Analytical Quality Window Fused Silica   AQF10195OW  $370.00 AQF10195OW 101.6 12.7 Laser Quality Window BK7 LQB10113OW $590.00 LQB10113OW  101.6 12.7 Analytical Quality Window BK7 AQB10113OW $130.00 AQB10113OW 101.6 12.7 Laser Quality Window Fused Silica   LQF10113OW $645.00 LQF10113OW 101.6 12.7 Analytical Quality Window Fused Silica   AQF10113OW $435.00 AQF10113OW <<<<<Back

· Add a Laser Quality AR Coating to any "LQ" Product # Window above...

            · AR Coatings for all Analytical Quality "AQ" Product # Windows are

     available ONLY by special Request


                                        Also see our Square Optical Windows.


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