Windows

BK7 & Fused Silica Windows

Window isolates environments, or as a protective environment or increase light transmission to increase readability for some displays. We provide coated windows and uncoated window substrates for custom application. Metal housing, standard and broadband antireflection coatings are available upon request, see our standard optics components below.

18window.jpg

Specifications

Parameter Standard General
Dimensional Tolerance: +0/-0.1 mm +0/-0.15 mm
Thickness Tolerance: +/-0.1 mm +/-0.2 mm
Surface Figure at 632.8nm(over 85% dimension) if the window’s overall diameter is less than 25 mm : λ /2 λ
Surface Figure at 632.8nm(over 85% dimension) if the window’s overall diameter is larger than 25 mm : λ 2 λ
Parallelism: +/- 10 arc sec. +/- 1 arc min.
Surface Quality: 40-20 60-40
Clear Aperture: > 85 % of dimensions > 85 % of dimensions
Coating: Custom Custom

BK7 Windows

Diameter Material Thickness Part No
Φ(mm) Name t(mm) Standard General
3.0 BK7 0.50 KPSC 001 KPGC 001
5.0 BK7 0.50 KPSC 002 KPGC 002
6.0 BK7 0.50 KPSC 003 KPGC 003
8.0 BK7 1.00 KPSC 004 KPGC 004
10.0 BK7 1.00 KPSC 005 KPGC 005
10.0 BK7 2.00 KPSC 006 KPGC 006
10.0 BK7 3.00 KPSC 007 KPGC 007
12.7 BK7 1.00 KPSC 008 KPGC 008
12.7 BK7 2.00 KPSC 009 KPGC 009
12.7 BK7 3.00 KPSC 010 KPGC 010
20.0 BK7 1.00 KPSC 011 KPGC 011
20.0 BK7 2.00 KPSC 012 KPGC 012
20.0 BK7 3.00 KPSC 013 KPGC 013
20.0 BK7 4.00 KPSC 014 KPGC 014
20.0 BK7 5.00 KPSC 015 KPGC 015
20.0 BK7 6.00 KPSC 016 KPGC 016
25.4 BK7 1.00 KPSC 017 KPGC 017
25.4 BK7 2.00 KPSC 018 KPGC 018
25.4 BK7 3.00 KPSC 019 KPGC 019
25.4 BK7 4.00 KPSC 020 KPGC 020
25.4 BK7 5.00 KPSC 021 KPGC 021
25.4 BK7 6.00 KPSC 022 KPGC 022
30.0 BK7 1.00 KPSC 023 KPGC 023
30.0 BK7 2.00 KPSC 024 KPGC 024
30.0 BK7 3.00 KPSC 025 KPGC 025
30.0 BK7 4.00 KPSC 026 KPGC 026
30.0 BK7 5.00 KPSC 027 KPGC 027
30.0 BK7 6.00 KPSC 028 KPGC 028
38.1 BK7 1.00 KPSC 029 KPGC 029
38.1 BK7 2.00 KPSC 030 KPGC 030
38.1 BK7 3.00 KPSC 031 KPGC 031
38.1 BK7 4.00 KPSC 032 KPGC 032
38.1 BK7 5.00 KPSC 033 KPGC 033
38.1 BK7 6.00 KPSC 034 KPGC 034
50.8 BK7 1.00 KPSC 035 KPGC 035
50.8 BK7 2.00 KPSC 036 KPGC 036
50.8 BK7 3.00 KPSC 037 KPGC 037
50.8 BK7 5.00 KPSC 038 KPGC 038
50.8 BK7 6.00 KPSC 039 KPGC 039
50.8 BK7 8.00 KPSC 040 KPGC 040
50.8 BK7 10.00 KPSC 041 KPGC 041
60.0 BK7 2.00 KPSC 042 KPGC 042
60.0 BK7 3.00 KPSC 043 KPGC 043
60.0 BK7 5.00 KPSC 044 KPGC 044
60.0 BK7 6.00 KPSC 045 KPGC 045
60.0 BK7 8.00 KPSC 046 KPGC 046
60.0 BK7 10.00 KPSC 047 KPGC 047
80.0 BK7 3.00 KPSC 048 KPGC 048
80.0 BK7 5.00 KPSC 049 KPGC 049
80.0 BK7 6.00 KPSC 050 KPGC 050
80.0 BK7 8.00 KPSC 051 KPGC 051
80.0 BK7 10.00 KPSC 052 KPGC 052
100.0 BK7 5.00 KPSC 053 KPGC 053
100.0 BK7 8.00 KPSC 054 KPGC 054
100.0 BK7 10.00 KPSC 055 KPGC 055

Fused Silica Windows

Diameter Material Thickness Part No
Φ(mm) Name t(mm) Standard General
3.0 Fused Silica 0.50 FPSC 001 FPGC 001
5.0 Fused Silica 0.50 FPSC 002 FPGC 002
6.0 Fused Silica 1.00 FPSC 003 FPGC 003
8.0 Fused Silica 1.00 FPSC 004 FPGC 004
10.0 Fused Silica 1.00 FPSC 005 FPGC 005
10.0 Fused Silica 2.00 FPSC 006 FPGC 006
10.0 Fused Silica 3.00 FPSC 007 FPGC 007
12.7 Fused Silica 1.00 FPSC 008 FPGC 008
12.7 Fused Silica 2.00 FPSC 009 FPGC 009
12.7 Fused Silica 3.00 FPSC 010 FPGC 010
20.0 Fused Silica 1.00 FPSC 011 FPGC 011
20.0 Fused Silica 2.00 FPSC 012 FPGC 012
20.0 Fused Silica 3.00 FPSC 013 FPGC 013
20.0 Fused Silica 4.00 FPSC 014 FPGC 014
20.0 Fused Silica 5.00 FPSC 015 FPGC 015
20.0 Fused Silica 6.00 FPSC 016 FPGC 016
25.4 Fused Silica 1.00 FPSC 017 FPGC 017
25.4 Fused Silica 2.00 FPSC 018 FPGC 018
25.4 Fused Silica 3.00 FPSC 019 FPGC 019
25.4 Fused Silica 4.00 FPSC 020 FPGC 020
25.4 Fused Silica 5.00 FPSC 021 FPGC 021
25.4 Fused Silica 6.00 FPSC 022 FPGC 022
30.0 Fused Silica 1.00 FPSC 023 FPGC 023
30.0 Fused Silica 2.00 FPSC 024 FPGC 024
30.0 Fused Silica 3.00 FPSC 025 FPGC 025
30.0 Fused Silica 4.00 FPSC 026 FPGC 026
30.0 Fused Silica 5.00 FPSC 027 FPGC 027
30.0 Fused Silica 6.00 FPSC 028 FPGC 028
38.1 Fused Silica 1.00 FPSC 029 FPGC 029
38.1 Fused Silica 2.00 FPSC 030 FPGC 030
38.1 Fused Silica 3.00 FPSC 031 FPGC 031
38.1 Fused Silica 4.00 FPSC 032 FPGC 032
38.1 Fused Silica 5.00 FPSC 033 FPGC 033
38.1 Fused Silica 6.00 FPSC 034 FPGC 034
50.8 Fused Silica 1.00 FPSC 035 FPGC 035
50.8 Fused Silica 2.00 FPSC 036 FPGC 036
50.8 Fused Silica 3.00 FPSC 037 FPGC 037
50.8 Fused Silica 5.00 FPSC 038 FPGC 038
50.8 Fused Silica 6.00 FPSC 039 FPGC 039
50.8 Fused Silica 8.00 FPSC 040 FPGC 040
50.8 Fused Silica 10.00 FPSC 041 FPGC 041
60.0 Fused Silica 2.00 FPSC 042 FPGC 042
60.0 Fused Silica 3.00 FPSC 043 FPGC 043
60.0 Fused Silica 5.00 FPSC 044 FPGC 044
60.0 Fused Silica 6.00 FPSC 045 FPGC 045
60.0 Fused Silica 8.00 FPSC 046 FPGC 046
60.0 Fused Silica 10.00 FPSC 047 FPGC 047
80.0 Fused Silica 4.00 FPSC 048 FPGC 048
80.0 Fused Silica 5.00 FPSC 049 FPGC 049
80.0 Fused Silica 6.00 FPSC 050 FPGC 050
80.0 Fused Silica 8.00 FPSC 051 FPGC 051
80.0 Fused Silica 10.00 FPSC 052 FPGC 052
100.0 Fused Silica 5.00 FPSC 053 FPGC 053
100.0 Fused Silica 8.00 FPSC 054 FPGC 054
100.0 Fused Silica 10.00 FPSC 055 FPGC 055

Square BK7 Windows

window-21.jpg
Specifications

Parameter Standard General
Dimensional Tolerance: +0/-0.1 mm +0/-0.15 mm
Thickness Tolerance: +/-0.1 mm +/-0.2 mm
Surface Figure at 632.8nm(over 85% dimension) if the window’s overall diameter is less than 25 mm : λ /2 λ
Surface Figure at 632.8nm(over 85% dimension) if the window’s overall diameter is larger than 25 mm : λ 2 λ
Parallelism: +/- 10 arc sec. +/- 1 arc min.
Surface Quality: 40-20 60-40
Clear Aperture: > 85 % of dimensions > 85 % of dimensions
Coating: Custom Custom

Square BK7 Windows

Dimension Material Thickness Part No
Φ(mm) Name t(mm) Standard General
10.0×10.0 BK7 1.00 KPSR 001 KPGR 001
10.0×10.0 BK7 2.00 KPSR 002 KPGR 002
12.7×12.7 BK7 1.00 KPSR 003 KPGR 003
12.7×12.7 BK7 2.00 KPSR 004 KPGR 004
25.4×25.4 BK7 1.00 KPSR 005 KPGR 005
25.4×25.4 BK7 3.00 KPSR 006 KPGR 006
25.4×25.4 BK7 5.00 KPSR 007 KPGR 007
25.4×25.4 BK7 6.00 KPSR 008 KPGR 008
25.4×25.4 BK7 6.35 KPSR 009 KPGR 009
30.0×30.0 BK7 5.00 KPSR 010 KPGR 010
38.1×38.1 BK7 2.00 KPSR 011 KPGR 011
38.1×38.1 BK7 3.00 KPSR 012 KPGR 012
38.1×38.1 BK7 5.00 KPSR 013 KPGR 013
38.1×38.1 BK7 6.35 KPSR 014 KPGR 014
38.1×38.1 BK7 8.00 KPSR 015 KPGR 015
38.1×38.1 BK7 10.00 KPSR 016 KPGR 016
50.8×50.8 BK7 1.00 KPSR 017 KPGR 017
50.8×50.8 BK7 2.00 KPSR 018 KPGR 018
50.8×50.8 BK7 3.00 KPSR 019 KPGR 019
50.8×50.8 BK7 5.00 KPSR 020 KPGR 020
50.8×50.8 BK7 6.35 KPSR 021 KPGR 021
50.8×50.8 BK7 8.00 KPSR 022 KPGR 022
50.8×50.8 BK7 10.00 KPSR 023 KPGR 023

Square Fused Silica Windows

Dimension Material Thickness Part No
Φ(mm) Name t(mm) Standard General
10.0×10.0 Fused Silica 1.00 FPSR 001 FPGR 001
10.0×10.0 Fused Silica 2.00 FPSR 002 FPGR 002
12.7×12.7 Fused Silica 1.00 FPSR 003 FPGR 003
12.7×12.7 Fused Silica 2.00 FPSR 004 FPGR 004
25.4×25.4 Fused Silica 1.00 FPSR 005 FPGR 005
25.4×25.4 Fused Silica 3.00 FPSR 006 FPGR 006
25.4×25.4 Fused Silica 5.00 FPSR 007 FPGR 007
25.4×25.4 Fused Silica 6.00 FPSR 008 FPGR 008
25.4×25.4 Fused Silica 6.35 FPSR 009 FPGR 009
38.1×38.1 Fused Silica 2.00 FPSR 010 FPGR 010
38.1×38.1 Fused Silica 3.00 FPSR 011 FPGR 011
38.1×38.1 Fused Silica 5.00 FPSR 012 FPGR 012
38.1×38.1 Fused Silica 6.35 FPSR 013 FPGR 013
38.1×38.1 Fused Silica 8.00 FPSR 014 FPGR 014
38.1×38.1 Fused Silica 10.00 FPSR 015 FPGR 015
50.8×50.8 Fused Silica 1.00 FPSR 016 FPGR 016
50.8×50.8 Fused Silica 2.00 FPSR 017 FPGR 017
50.8×50.8 Fused Silica 3.00 FPSR 018 FPGR 018
50.8×50.8 Fused Silica 5.00 FPSR 019 FPGR 019
50.8×50.8 Fused Silica 6.35 FPSR 020 FPGR 020
50.8×50.8 Fused Silica 8.00 FPSR 021 FPGR 021
50.8×50.8 Fused Silica 10.00 FPSR 022 FPGR 022