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Precison Grade
BK7 or Equivalent Windows

Code Dia
(mm)
Lnght
(mm)
Width
(mm)
Thick
(mm)
Step
Thickness
(mm)
Material Grade Price Buy & More ...
WGW2410-XS OD 85
ID 73
- - 12 5.5 BK7 or equiv Stepped
window
$22.50 More Info..

Code Flatness (_) Coating Coated
sides
Dia
(mm)
Length
(mm)
Width
(mm)
Thick
(mm)
Material Grade Price Buy & More ...
WQK8765-XS 1 wave
both faces
Uncoated None - 97 46 3.4 BK7 or equiv 1 $37.50 More Info..
WQK16
33-XS
1 wave
both faces
Uncoated - 16 - - 3 BK7
or equiv
1 $6.00 More Info..
WQK02
11-XS
1 wave
both faces
Uncoated - 2.2 - - 1.2 BK7
or equiv
1 $7.50 More Info..
WQK15
03-XS
1 wave
both faces
AR/AR
visible
- 15 - - 2.85 BK7
or equiv
2 $7.50 More Info..
FCS10
43-XS
1 both
faces
Uncoated - 47 - - 3 BK7
or equiv
2 $11.25 More Info..
WQK19
20-XS
1 wave
both faces
AR one
side
@625nm
- - 20.3 20 1.4 BK7
or equiv
1 $11.25 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..
FCS10
44-XS
1 Both
faces
Uncoated - - 120 70 5.8 BK7
or equiv
2 $30.00 More Info..
WQK11
080-XS
1 wave
both faces
Uncoated - - 100 80 8 BK7
or equiv
1 $67.50 More Info..
WQK63
00-XS
1/4 wave
both faces
Uncoated - 63 - - 8 BK7
or equiv
1 $67.50 More Info..


Code Flatness (_) Coating Coated
sides
Dia
(mm)
Length
(mm)
Width
(mm)
Thick
(mm)
Material Grade Price Buy & More ...
WQK00
01-XS
- AR/AR@
400 730nm
Tavg>95%
- 45 - - 10 BK7
or equiv
2 $15.00 More Info..
WQK00
72-XS
- 450-900 Both
Sides
- 60.15 57.15 3.15 BK7
or equiv
1 $30.00 More Info..
WQK02
96-XS
- Uncoated - 46.50 - - 3 BK7
or equiv
1 $22.50 More Info..
WQK101
52-XS
3 fringes
/25mm
AR R
.avg<0.5%
@1535nm
1 - 101.4 52.4 3 BK7
or equiv
1 $52.50 More Info..
WQK10
95-XS
- AR 1500-
1600nm
- 3.9 - - 1 BK7
or equiv
1 $18.00 More Info..
WQK1200
3-BL-XS
- Uncoated 120 - - 3 BK7 or
equiv
1 $30.00 More Info..
WQK12
003-XS
- AR R<1%
420-1000nm
- 120 - - 3 BK7 or
equiv
2 $150.00 More Info..
WQK12
510-XS
- AR R
<0.4 @
658nm
2 125 - - 10 BK7 or
equiv
1 $45.00 More Info..
WQK25
42-XS
1 wave
both faces
Uncoated - 25.4 - - 1.5 BK7
or equiv
1 $15.00 More Info..
WQK40
00-XS
- Uncoated - 40 - - 6 BK7 or
equiv
1 $22.20 More Info..
WQK50
00-XS
- Uncoated - 50 - - 6 BK7
or equiv
1 $14.25 More Info..
WQK50
50-XS
- Uncoated - - 50 50 8 BK7
or equiv
1 $17.25 More Info..
WQK60
06-XS
- Uncoated - 60 - - 6 BK7
or equiv
1 $30.00 More Info..
WQK75
75-XS
- Uncoated - - 75 75 8 BK7
or equiv
1 $30.00 More Info..
WQK90
15-XS
- AR Coated
R> 97%@
400-700
Both
sides
- 90 150 15 BK7
or equiv
2 $112.50 More Info..
WGS20
20-XS
- Uncoated - - 20 20 1.5 SF11 or
equiv
2 $12.75 More Info..
WGW44
05-XS
- Uncoated - 43.9 - - 5.5 BK7
or equiv
1 $11.25 More Info..
FCS60
0-XS
- Uncoated - - 120.5 69.5 3 BK7
or equiv
1 $37.50 More Info..
WQK75
00-XS
- Uncoated - 75 - - 8 BK7
or equiv
1 $30.00 More Info..

Code Flatness (_) Coating Coated
sides
Dia
(mm)
Length
(mm)
Width
(mm)
Thick
(mm)
Material Grade Price Buy & More ...
WQK101
01-XS
1 Lambda AR<0.5%@
450-650nm
Both 101.6 - - 6.35 BK7 or
equiv
1 $135.00 More Info..
WQK06
39-XS
Lambda/3 Uncoated - 19 - - 3 BK7 or
equiv
1 $12.50 More Info..
WQK61
61-XS
N/A AR@1500-
1600nm
One 3.95 - - 1.05 BK7 or
equiv
1 $8.00 More Info..
WQB27
61-XS
Lambda/10 Uncoated - 44 - - 4 BK7 or
equiv
1 $10.00 More Info..
WGB49
00-XS
N/A Uncoated - 49 - - 1.5 BK7 or
equiv
1 $10.00 More Info..
WGW5500
-AV1-XS
Lambda/2 AR<0.5%@450
-900nm
Both sides 54.5 - - 4 BK7 or
equiv
1 $15.00 More Info..
WQK16
01-XS
N/A AR<0.5%@400
-700nm
1 and 2 16 - - 1 BK7 or
equiv
1 $5.00 More Info..
WQK042
005-XS
1 fringe AR<0.5%@
450-650nm
- 3.7 - - 0.5 BK7 or
equiv
1 $5.00 More Info..
WSF151
508-XS
Lambda/2 Uncoated - - 15 15 0.8 SF66 or
equiv
1 $10.00 More Info..
WGW250
33-XS
Lambda/2 Uncoated - - 25 25 3 N-LAK9 or
equiv
1 $10.00 More Info..
WGB2700
32-XS
Lambda/5 Uncoated - 27 - - 3 BK7 or
equiv
1 $10.00 More Info..
WQK61
34-XS
Lambda/5 Uncoated - 28 - - 3 BK7 or
equiv
1 $10.00 More Info..
WGB32
00-XS
1 Lambda Uncoated - 32 - - 1 BK7 or
equiv
1 $10.00 More Info..

Code Aperture; A (mm) Dia (mm) Thickness (mm) Grade Price Buy & More ...
MQD1205-XS - 12.7 5 2 $7.50 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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