Base Lab Tools provides Optical Windows from stock in BK7, K9, Fused Silica, Sapphire as well as other materials. We have a strong tradition in providing custom optics like the Optical Windows to OEM customers with both high quality and great prices and bring this same standard to our stock catalog Optical Windows. We are capable of building optical windows throw a whole range of parameters as shown in the table to the right.

Don’t see what you want? We are happy to quote custom optical windows in quantities as small as 100 pieces. For a quote use the contact form on this website or email [email protected]

Base Lab Tools Windows Capabilities

Parameter Range of Values   
Surface Flatness (@543nm)  10λ to  λ/10
Thickness 0.5mm to 30mm
 Diameters 1mm to 75mm
 Scratch:Dig 10:5 to 80:50
Item#DescriptionStockPriceBuy
WI-SX-065-015Sapphire Optical Window - Ø6.5mm, 1.5mm Thick, UncoatedIn stock$11.50

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Sapphire Optical Window - Ø6.5mm, 1.5mm Thick, Uncoated
WI-SX-063-005Sapphire Optical Window - Ø6.3mm, 0.5mm Thick, UncoatedIn stock$10.75

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Sapphire Optical Window - Ø6.3mm, 0.5mm Thick, Uncoated
WI-SX-063-002Sapphire Optical Window - Ø6.35mm, 0.23mm Thick, UncoatedIn stock$5.00

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Sapphire Optical Window - Ø6.35mm, 0.23mm Thick, Uncoated
WI-SX-055-009Sapphire Optical Window - Ø5.5mm, 0.9mm Thick, UncoatedIn stock$10.15

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Sapphire Optical Window - Ø5.5mm, 0.9mm Thick, Uncoated
WI-SX-050-005Sapphire Optical Window - Ø5.0mm x 0.5mm Thick, UncoatedIn stock$9.00

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Sapphire Optical Window - Ø5.0mm x 0.5mm Thick, Uncoated
WI-SX-050-003Sapphire Optical Window - Ø5.0mm x 0.25mm Thick, UncoatedIn stock$5.00

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Sapphire Optical Window - Ø5.0mm x 0.25mm Thick, Uncoated
WI-SX-050-002Sapphire Optical Window - Ø5.0mm x 0.2mm Thick, UncoatedIn stock$8.75

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Sapphire Optical Window - Ø5.0mm x 0.2mm Thick, Uncoated
WI-SX-049-010Sapphire Optical Window - Ø4.9mm x 1.0mm Thick, UncoatedIn stock$10.50

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Sapphire Optical Window - Ø4.9mm x 1.0mm Thick, Uncoated
WI-SX-027-006Sapphire Optical Window - Ø2.7mm, 0.6mm Thick, UncoatedIn stock$8.75

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Sapphire Optical Window - Ø2.7mm, 0.6mm Thick, Uncoated
WI-SX-007-003Sapphire Optical Window - Ø0.7mm x 0.30mm Thick, UncoatedIn stock$8.50

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Sapphire Optical Window - Ø0.7mm x 0.30mm Thick, Uncoated
WI-SX-508-032Sapphire Optical Window - Ø50.8mm x 3.20mm Thick (Ø2" x 1/8" thick), UncoatedIn stock$295.00

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Sapphire Optical Window - Ø50.8 mm x 3.20 mm Thick  (Ø2" x 1/8" thick), Uncoated
WI-SX-380-020Sapphire Optical Window - Ø38mm, 2mm Thick, UncoatedIn stock$145.00

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Sapphire Optical Window - Ø38mm, 2mm Thick, Uncoated
WI-SX-350-045Sapphire Optical Window - Ø35.0mm x 4.5mm Thick, UncoatedIn stock$175.00

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Sapphire Optical Window - Ø35.0mm x 4.5mm Thick, Uncoated
WI-SX-349-064Sapphire Optical Window - Ø34.9mm x 6.35mm Thick, UncoatedIn stock$185.00

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Sapphire Optical Window - Ø34.9mm x 6.35mm Thick, Uncoated
WI-SX-318-020Sapphire Optical Window - Ø31.8mm, 2mm Thick, UncoatedIn stock$140.00

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Sapphire Optical Window - Ø31.8mm, 2mm Thick, Uncoated
WI-SX-254-030Sapphire Optical Window - Ø1" (Ø25.4mm), 3.0mm Thick, UncoatedIn stock$43.00

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Sapphire Optical Window - Ø1" (Ø25.4mm), 3.0mm Thick, Uncoated
WI-SX-254-010Sapphire Optical Window - Ø1" (Ø25.4mm), 1mm Thick, UncoatedIn stock$39.00

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Sapphire Optical Window - Ø1" (Ø25.4 mm), 1 mm Thick, Uncoated
WI-SX-222-005Sapphire Optical Window - Ø22.2mm (7/8")x 0.50mm Thick, UncoatedIn stock$29.00

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Sapphire Optical Window - Ø22.2mm (7/8")x 0.50mm Thick, Uncoated
WI-SX-220-010Sapphire Optical Window - Ø22mm, 1mm Thick, UncoatedIn stock$36.00

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Sapphire Optical Window - Ø22mm, 1mm Thick, Uncoated
WI-SX-172-008Sapphire Optical Window - Ø17.2mm, 0.8mm Thick, UncoatedIn stock$35.00

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Sapphire Optical Window - Ø17.2mm, 0.8mm Thick, Uncoated
WI-SX-120-020Sapphire Optical Window - Ø12mm, 2mm Thick, UncoatedIn stock$37.00

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Sapphire Optical Window - Ø12mm, 2mm Thick, Uncoated
WI-SX-100-015Sapphire Optical Window - Ø10mm, 1.5mm Thick, UncoatedIn stock$29.75

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Sapphire Optical Window - Ø10mm, 1.5mm Thick, Uncoated
WI-SX-095-005Sapphire Optical Window - Ø9.5mm, 0.5mm Thick, UncoatedIn stock$25.00

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Sapphire Optical Window - Ø9.5mm, 0.5mm Thick, Uncoated
WI-SX-090-015Sapphire Optical Window - Ø9mm, 1.5mm Thick, UncoatedIn stock$29.00

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Sapphire Optical Window - Ø9mm, 1.5mm Thick, Uncoated
WI-SX-070-020Sapphire Optical Window - Ø7mm, 2mm Thick, UncoatedIn stock$15.00

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Sapphire Optical Window - Ø7mm, 2mm Thick, Uncoated