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BK7

Specifications:

Material: BK7 Grade A Optical Glass
Design Wavelength: 546.1nm
Design Index: 1.5183±0.0005
Diameter Tolerance: +0.0, -0.15mm
Paraxial Focal Length: ±2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: l[email protected]
Surface Quality: 60-40 scratch and dig
Bevel: 0.25 mm x 45°
Part No.
f (mm)
f (mm)
R1=R2 (mm)
tc (mm)
te (mm)
fb (mm)
DV0101
-8.0
6.0
8.62
2.0
3.0
-8.6
DV0102
-12.0
6.0
12.77
2.0
2.7
-12.6
DV0103
-18.0
6.0
18.99
2.0
2.5
-18.6
DV0104
-10.0
10.0
10.70
2.0
4.5
-10.6
DV0105
-15.0
12.7
15.88
2.0
4.6
-15.6
DV0106
-20.0
12.7
21.07
2.0
4.0
-20.6
DV0107
-25.0
12.7
26.25
2.0
3.6
-25.7
DV0108
-30.0
12.7
31.44
2.0
3.3
-30.7
DV0109
-40.0
12.7
41.80
2.0
3.0
-40.7
DV0110
-50.0
12.7
52.17
2.0
2.8
-50.7
DV0111
-35.0
25.4
36.62
2.0
6.5
-35.7
DV0112
-50.0
25.4
52.17
2.0
5.1
-50.7
DV0113
-75.0
25.4
78.09
2.0
4.1
-75.7
DV0114
-100.0
25.4
104.00
2.0
3.6
-100.7
DV0115
-125.0
25.4
129.92
2.0
3.2
-125.7
DV0116
-150.0
25.4
155.83
2.0
3.0
-150.7
DV0117
-175.0
25.4
181.75
2.0
2.9
-175.7
DV0118
-200.0
25.4
207.66
2.0
2.8
-200.7
DV0119
-250.0
25.4
259.49
2.0
2.6
-250.7
DV0120
-300.0
25.4
311.32
2.0
2.5
-300.7
DV0121
-500.0
25.4
518.64
2.0
2.3
-500.7
DV0122
-1000.0
25.4
1036.94
2.0
2.2
-1000.7
DV0123
-50.0
38.0
52.34
3.0
10.1
-51.0
DV0124
-100.0
38.0
104.17
3.0
6.5
-101.0
DV0125
-150.0
38.0
156.00
3.0
5.3
-151.0
DV0126
-200.0
38.0
207.83
3.0
4.7
-201.0
DV0127
-350.0
38.0
363.32
3.0
4.0
-351.0
DV0128
-500.0
38.0
518.81
3.0
3.7
-501.0
DV0129
-700.0
38.0
726.13
3.0
3.5
-701.0
DV0130
-100.0
50.0
104.17
3.0
9.1
-101.0
DV0131
-150.0
50.0
156.00
3.0
7.0
-151.0
DV0132
-200.0
50.0
207.83
3.0
6.0
-201.0
DV0133
-250.0
50.0
259.66
3.0
5.4
-251.0
DV0134
-400.0
50.0
415.15
3.0
4.5
-401.0
DV0135
-450.0
50.0
466.91
3.0
4.3
-451.0
DV0136
-500.0
50.0
518.82
3.0
4.2
-501.0
DV0137
-600.0
50.0
622.47
3.0
4.0
-601.0
DV0138
-800.0
50.0
829.73
3.0
3.8
-801.0
Please refer to the Material Chapter for more information about BK7 glass, UV grade fused silica, Sapphire and CaF2.
Please refer to the Glossary and Technology for more information about lenses.
Please refer to Coating Chapter for more infomation of coating.
Other sizes and coatings are available upon request.
lPlease refer to Ring Mount for Lenses
 

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