1/4-Wave N-BK7 Window 75mm Dia. VIS-NIR Coating
#84-359
Diameter (mm)
75
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
VIS-NIR, Rabs ≤0.25% @ 880nmavg ≤1.25% @ 400 - 870nmavg ≤1.25% @ 890 - 1000nm
Typical Energy Density Limit
5 J/cm2 @ 532nm, 10ns
RoHS
Compliant
1/4-Wave N-BK7 Window 25mm Sq. NIR I Coating
#83-478
Dimensions (mm)
25.00 x 25.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 50mm Dia. NIR I Coating
#83-477
Diameter (mm)
50.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 40mm Dia. NIR I Coating
#83-476
Diameter (mm)
40.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 35mm Sq. NIR I Coating
#83-475
Dimensions (mm)
35.00 x 35.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
3.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 30mm Dia. NIR I Coating
#83-474
Diameter (mm)
30.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Compliant
1/4-Wave N-BK7 Window 25mm Sq. NIR I Coating
#83-473
Dimensions (mm)
25.00 x 25.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 25mm Dia. NIR I Coating
#83-472
Diameter (mm)
25.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 20mm Dia. NIR I Coating
#83-471
Diameter (mm)
20.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
3.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 15mm Dia. NIR I Coating
#83-470
Diameter (mm)
15.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
3.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 12.5mm Sq. NIR I Coating
#83-469
Dimensions (mm)
12.50 x 12.50
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
3.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 12.5mm Dia. NIR I Coating
#83-468
Diameter (mm)
12.50
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
3.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 10mm Sq. NIR I Coating
#83-467
Dimensions (mm)
10.00 x 10.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
2.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 10mm Dia. NIR I Coating
#83-466
Diameter (mm)
10.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
2.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 9mm Dia. NIR I Coating
#83-465
Diameter (mm)
9.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
2.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 5mm Dia. NIR I Coating
#83-464
Diameter (mm)
5.00
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
2.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
NIR I, Ravg ≤0.5% @ 600 - 1050nm
Typical Energy Density Limit
7 J/cm2 @ 1064nm, 10ns
RoHS
Exempt
1/4-Wave N-BK7 Window 75mm Sq. MgF2 Coating
#62-609
Dimensions (mm)
75 x 75
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
MgF2 : ¼λ @ 550nm, Ravg ≤1.75% @ 400 - 700nm
Typical Energy Density Limit
10 J/cm2 @ 532nm, 10ns
RoHS
Compliant
1/4-Wave N-BK7 Window 75mm Dia. MgF2 Coating
#62-608
Diameter (mm)
75
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
MgF2 : ¼λ @ 550nm, Ravg ≤1.75% @ 400 - 700nm
Typical Energy Density Limit
10 J/cm2 @ 532nm, 10ns
RoHS
Compliant
1/4-Wave N-BK7 Window 75mm Sq. Uncoated
#62-607
Dimensions (mm)
75 x 75
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
Uncoated
RoHS
Compliant
1/4-Wave N-BK7 Window 75mm Dia. Uncoated
#62-606
Diameter (mm)
75
Dimensional Tolerance (mm)
+0.0/-0.25
Clear Aperture (%)
85
Thickness (mm)
4.00
Thickness Tolerance (mm)
±0.20
Surface Accuracy (λ)
1/4
Surface Quality
60-40
Parallelism (arcminutes)
1
Substrate
N-BK7
Coating
Uncoated
RoHS
Compliant
1/4λ N-BK7 Precision Windows
View Legend
