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Precison Grade
BK7 or Equivalent Windows

Code Flatness (_) Coating Coated sides Dia (mm) Length (mm) Width (mm) Thick (mm) Material Grade Price Buy & More ...
WQK0211-XS 1 wave both faces Uncoated - 2.2 - - 1.2 BK7or equiv 1 $7.50 More Info..
WQK042005-XS 1 fringe AR<0.5%@450-650nm - 3.7 - - 0.5 BK7 orequiv 1 $5.00 More Info..
WQK1095-XS - AR 1500-1600nm - 3.9 - - 1 BK7 or equiv 1 $18.00 More Info..
WQK6161-XS N/A AR@1500-1600nm One 3.95 - - 1.05 BK7 orequiv 1 $8.00 More Info..
WQK1503-XS 1 wave both faces AR/AR visible - 15 - - 2.85 BK7 or equiv 2 $7.50 More Info..
WQK1601-XS N/A AR<0.5%@400-700nm 1 and 2 16 - - 1 BK7 orequiv 1 $5.00 More Info..
WQK1633-XS 1 wave both faces Uncoated - 16 - - 3 BK7or equiv 1 $6.00 More Info..
WQK0639-XS Lambda/3 Uncoated - 19 - - 3 BK7 orequiv 1 $12.50 More Info..
WQK2542-XS 1 wave both faces Uncoated - 25.4 - - 1.5 BK7 or equiv 1 $15.00 More Info..
WGB270032-XS Lambda/5 Uncoated - 27 - - 3 BK7 orequiv 1 $10.00 More Info..
WQK6134-XS Lambda/5 Uncoated - 28 - - 3 BK7 orequiv 1 $10.00 More Info..
WGB3200-XS 1 Lambda Uncoated - 32 - - 1 BK7 orequiv 1 $10.00 More Info..
WQK4033-AV1-XS 1 wave both faces R.avg<0.5%450-750nm Both faces 40 - - 3 BK7 or equiv 1 $18.75 More Info..
WQK4000-XS - Uncoated - 40 - - 6 BK7 or equiv 1 $22.20 More Info..
WGW4405-XS - Uncoated - 43.9 - - 5.5 BK7 or equiv 1 $11.25 More Info..
WQB2761-XS Lambda/10 Uncoated - 44 - - 4 BK7 orequiv 1 $10.00 More Info..
WQK0001-XS - AR/AR@400 730nm Tavg>95% - 45 - - 10 BK7or equiv 2 $15.00 More Info..
WQK0296-XS - Uncoated - 46.5 - - 3 BK7 or equiv 1 $22.50 More Info..
FCS1043-XS 1 both faces Uncoated - 47 - - 3 BK7 or equiv 2 $11.25 More Info..
WGB4900-XS N/A Uncoated - 49 - - 1.5 BK7 orequiv 1 $10.00 More Info..
WQK5000-XS - Uncoated - 50 - - 6 BK7 or equiv 1 $14.25 More Info..
WGW5500-AV1-XS Lambda/2 AR<0.5%@450-900nm Both sides 54.5 - - 4 BK7 orequiv 1 $15.00 More Info..
WQK6006-XS - Uncoated - 60 - - 6 BK7 or equiv 1 $30.00 More Info..
WQK6300-XS 1/4 wave both faces Uncoated - 63 - - 8 BK7 or equiv 1 $67.50 More Info..
WQK7500-XS - Uncoated - 75 - - 8 BK7 or equiv 1 $30.00 More Info..
WQK10101-XS 1 Lambda AR<0.5%@450-650nm Both 101.6 - - 6.35 BK7 or equiv 1 $135.00 More Info..
WQK12003-BL-XS - Uncoated   120 - - 3 BK7 or equiv 1 $30.00 More Info..
WQK12003-XS - AR R<1% 420-1000nm - 120 - - 3 BK7 or equiv 2 $150.00 More Info..
WQK12510-XS - AR R<0.4 @ 658nm 2 125 - - 10 BK7 or equiv 1 $45.00 More Info..
                       
Code Flatness (_) Coating Coated sides Dia (mm) Length (mm) Width (mm) Thick (mm) Material Grade Price Buy & More ...
WSF151508-XS Lambda/2 Uncoated - - 15 15 0.8 SF66 orequiv 1 $10.00 More Info..
WGS2020-XS - Uncoated - - 20 20 1.5 SF11 orequiv 2 $12.75 More Info..
WQK1920-XS 1 wave both faces AR one side @625nm - - 20.3 20 1.4 BK7 or equiv 1 $11.25 More Info..
WGW25033-XS Lambda/2 Uncoated - - 25 25 3 N-LAK9 orequiv 1 $10.00 More Info..
WQK5050-XS - Uncoated - - 50 50 8 BK7 or equiv 1 $17.25 More Info..
WQK0072-XS - 450-900 BothSides - 60.15 57.15 3.15 BK7 or equiv 1 $30.00 More Info..
WQK7575-XS - Uncoated - - 75 75 8 BK7 or equiv 1 $30.00 More Info..
WQK9015-XS - AR Coated R> 97%@400-700 Both sides - 90 150 15 BK7or equiv 2 $112.50 More Info..
WQK8765-XS 1 wave both faces Uncoated None - 97 46 3.4 BK7 or equiv 1 $37.50 More Info..
WQK11080-XS 1 wave both faces Uncoated - - 100 80 8 BK7 or equiv 1 $67.50 More Info..
WQK10152-XS 3 fringes/25mm AR R.avg<0.5%@1535nm 1 - 101.4 52.4 3 BK7 or equiv 1 $52.50 More Info..
FCS1044-XS 1 Both faces Uncoated - - 120 70 5.8 BK7 or equiv 2 $30.00 More Info..
FCS600-XS - Uncoated - - 120.5 69.5 3 BK7 or equiv 1 $37.50 More Info..

Precision windows

Windows are optically flat components that have two opposite polished faces and are used to protect internal components within an instrument. BK7 or equivalent grade material windows are available in various grades to meet a variety high end laser, imaging and commercial applications.
These BK7 or equivalent material windows are normally available as precision grade polished to ?/4 or ?/10 wave with very parallel faces for applications that require minimal transmitted beam deviation. They can be used as substrates for plate beamsplitters and mirrors. Other BK7 equivalent windows are available with polished faces not controlled to a high degree of flatness. They are available uncoated or antireflective coated for improved efficiency over the visible spectrum.
Specification:
Diameter: +0/-0.2mm
Length/ width: +0/-0.15mm
Thickness: +0/-0.15mm
Surface quality: 40-20 scratch/ dig

If you require Precision BK7 or equivalent material windows up to 16” diameter. AR coated for visible, NIR or Telecoms wavelengths.
Telephone 401 583 7846 or email sales@surplus-optics.com
Go to our contact form

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