Square Optical Windows


Square Optical Windows are available as both Laser Quality and Analytical Quality polish designated as LQ (Laser Quality) and AQ (Analytical Quality). 

Square Optical Windows are available in UV Grade Fused Silica (FS) & BK7 Glass materials.  Square Optical Windows are flat polished optical windows typically used to isolate environments while allowing light to pass relatively unimpeded.   Square Optical Windows are generally used for cover plates to protect other components within an optical assembly, instrument or laser.  Square Optical Windows are also used as optical coating substrates. 

For more information about Optical Windows, refer to our
Optics Tutorial page.

 

-- eSource Optics also offers an Excess Inventory of custom Thickness Optical Windows....

Please visit our "Windows Sale" Link.



 

OPTICAL WINDOW SPECIFICATIONS
 
Material: N-BK7 Glass & UV Grade Fused Silica (FS)     
Size Tolerance: ± 0.25mm
Thickness Tolerance: ± 0.25mm  
Surface Figure:  LQ = L/4 - L/10 @ 633 nm nominal 
                            AQ = ~5 waves @ 633 nm nominal
Surface Finish: LQ = 10-5 to 20-10 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)  

 

                                               

 

 

SIZE(S)
 (mm)
 

THICKNESS(T)
      (mm)          
    DESCRIPTION & QUALITY MATERIAL PRODUCT #    PRICE ORDER
12.7 6.4 Laser Quality Square Optical Window BK7 LQB1264SW $175.00   LQB1264SW 
12.7 6.4 Laser Quality Square Optical Window Fused Silica    LQF1264SW    $195.00    LQF1264SW  
25.4 1.6 Analytical Quality Square Optical Window BK7 AQB2516SW $85.00 AQB2516SW
25.4 1.6 Analytical Quality Square Optical Window Fused Silica AQF2516SW $95.00 AQF2516SW
25.4 2.0 Laser Quality Square Optical Window BK7 LQB2520SW $225.00 LQB2520SW
25.4 2.0 Laser Quality Square Optical Window Fused Silica LQF2520SW $295.00 LQF2520SW
25.4 6.4 Laser Quality Square Optical Window BK7 LQB2564SW $225.00 LQB2564SW
25.4 6.4 Analytical Quality Square Optical Window BK7 AQB2564SW $85.00 AQB2564SW
25.4 6.4 Laser Quality Square Optical Window Fused Silica LQF2564SW $275.00 LQF2564SW
25.4 6.4 Analytical Quality Square Optical Window Fused Silica AQF2564SW $100.00 AQF2564SW
38.1 9.5 Analytical Quality Square Optical Window BK7 AQB3895SW $105.00 AQB3895SW
50.8 1.6 Analytical Quality Square Optical Window BK7 AQB5016SW $110.00 AQB5016SW
50.8 1.6 Analytical Quality Square Optical Window Fused Silica AQF5016SW $150.00 AQF5016SW
50.8 4.8 Analytical Quality Square Optical Window BK7 AQB5048SW $130.00 AQB5048SW
50.8 4.8 Analytical Quality Square Optical Window Fused Silica AQF5048SW $170.00 AQF5048SW
50.8 6.4 Analytical Quality Square Optical Window BK7 AQB5064SW $135.00 AQB5064SW
50.8 6.4 Analytical Quality Square Optical Window Fused Silica AQF5064SW $175.00 AQF5064SW
50.8 9.5 Analytical Quality Square Optical Window BK7 AQB5095SW $140.00 AQB5095SW
50.8 9.5 Laser Quality Square Optical Window Fused Silica LQF5095SW $515.00 LQF5095SW
50.8 9.5 Analytical Quality Square  Optical Window Fused Silica AQF5095SW $190.00 AQF5095SW
76.2 3.2 Analytical Quality Square Optical Window Fused Silica AQF7632SW $245.00 AQF7632SW
76.2 6.4 Analytical Quality Square Optical Window Fused Silica  AQF7664SW $295.00 AQF7664SW
76.2 9.5 Analytical Quality Square Optical Window BK7 AQB7695SW $175.00 AQB7695SW
76.2 12.7 Analytical Quality Square Optical Window BK7 AQB7613SW $190.00 AQB7613SW
101.6 1.0 Analytical Quality Square Optical Window BK7 AQB10110SW $275.00 AQB10110SW
101.6 1.6 Analytical Quality Square Optical Window BK7 AQB10116SW $275.00 AQB10116SW
101.6 1.0 Analytical Quality Square Optical Window Fused Silica AQF10110SW $325.00 AQF10110SW
101.6 1.6 Analytical Quality Square Optical Window  Fused Silica AQF10116SW $335.00 AQF10116SW 
101.6 6.4 Analytical Quality Square Optical Window  Fused Silica AQF10164SW $395.00 AQF10164SW
101.6 9.5 Analytical Quality Square Optical Window   Fused Silica AQF10195SW $495.00 AQF10195SW
127.0 1.0 Analytical Quality Square Optical Window Fused Silica AQF12710SW $445.00 AQF12710SW
127.0 3.2 Analytical Quality Square Optical Window Fused Silica AQF12732SW $525.00 AQF12732SW
127.0 6.4 Analytical Quality Square Optical Window Fused Silica AQF12764SW $595.00 AQF12764SW
127.0 9.5 Analytical Quality Square Optical Window Fused Silica AQF12795SW $675.00 AQF12795SW 
152.4 1.0 Analytical Quality Square Optical Window Fused Silica AQF15210SW $500.00 AQF15210SW
152.4 3.2 Analytical Quality Square Optical Window Fused Silica AQF15232SW $595.00 AQF15232SW
152.4 6.4 Analytical Quality Square Optical Window Fused Silica AQF15264SW $795.00 AQF15264SW
152.4 9.5 Analytical Quality Square Optical Window Fused Silica AQF15295SW $975.00 AQF15295SW

 

  

             · Other standard "AQ" Square Optical Window sizes and thicknesses up to 152.4mm

                  Square and 12.7mm Thick in both Fused Silica & BK7 are available by Request



 

 

              

                                                                              

                                                             BK7 Glass Refractive Index  

Wavelength, nm 365 405 546 706 850
Refractive Index (n) 1.536 1.530 1.519 1.513 1.509
 

 

 

 

 

 

 

 

                      

 

 

 

                                                             UV Grade Fused Silica Refractive Index  

Wavelength, nm 193 248 308 355 405
Refractive Index (n) 1.561 1.508 1.485 1.476 1.469

 

 

 

 

 

                  

                                       

 

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                (Materials transmittance can vary slightly and this data should be used as a reference only.  Based on 2-3mm Thick.) 

 



                     

                                                         

 

 

 

 

 

 

 

 



 

                                         

 

                                                

                                                   
              eSource Optics / PMB 126 / 1225 Providence Rd. / Whitinsville, MA 01588

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