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Precision
Optics
Introduce
Windows
Lenses
Plano-Convex
Lenses
Double-Convex
Lenses
Plano-Concave
Lenses
Double-Concave
Lenses
Meniscus
Lenses
Cylindrical
Lenses
Achromatic
Lenses
Ring
Mount for Lenses
Prisms
Waveplates
Beamsplitters
Filters
Laser
Optics
Coloured
Optical Glass
IR
Materials
Coating
Custom
Optics
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BK7
Negative Meniscus Lenses
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Specifications:
Material:
BK7
Grade A Optical Glass
Design Wavelength: 546.1nm
Design Index: 1.5183 ¡À0.0005
Diameter Tolerance: +0.0, -0.15mm
Paraxial Focal Length: ¡À2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Figure: l/4@632.8nm
Surface Quality: 60-40 scratch and dig
Bevel: 0.25 mm x 45¡ã
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Part
No.
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f
(mm)
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f
(mm)
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R1
(mm)
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R2
(mm)
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tc
(mm)
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te
(mm)
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fb
(mm)
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MN0301
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-100.0
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25.4
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90.00
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32.59
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3.0
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4.5
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-99.2
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MN0302
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-125.0
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25.4
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90.00
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37.26
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3.0
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4.2
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-123.7
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MN0303
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-150.0
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25.4
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90.00
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41.42
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3.0
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4.0
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-149.5
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MN0104
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-175.0
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25.4
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90.00
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44.86
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3.0
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3.8
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-174.6
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MN0105
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-200.0
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25.4
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90.00
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47.84
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3.0
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3.7
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-199.6
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MN0106
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-250.0
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25.4
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235.00
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83.12
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3.0
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3.6
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-248.7
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MN0107
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-300.0
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25.4
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235.00
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93.13
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3.0
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3.5
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-298.5
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MN0108
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-350.0
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25.4
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235.00
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101.90
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3.0
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3.4
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-348.3
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MN0109
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-400.0
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25.4
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235.00
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109.56
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3.0
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3.4
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-397.5
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MN0110
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-500.0
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25.4
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235.00
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122.60
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3.0
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3.3
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-496.9
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MN0111
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-600.0
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25.4
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600.00
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204.08
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3.0
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3.2
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-597.2
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MN0112
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-800.0
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25.4
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600.00
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244.34
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3.0
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3.2
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-796.2
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MN0113
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-1000.0
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25.4
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600.00
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277.16
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3.0
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3.1
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-995.3
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MN0114
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-1500.0
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25.4
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600.00
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337.60
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3.0
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3.1
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-1492.7
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MN0115
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-2000.0
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25.4
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600.00
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378.82
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3.0
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3.1
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-1988.5
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MN0116
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-4000.0
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25.4
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600.00
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464.01
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3.0
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3.0
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-3973.1
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Please
refer to the Material
Chapter for more information about BK7 glass, UV grade
fused silica, Sapphire and CaF2. |
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Please
refer to
the Glossary
and Technology
for more information about lenses. |
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Please
refer to Coating
Chapter for more infomation of coating. |
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Other
sizes and coatings are available upon request. |
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lPlease
refer to Ring
Mount for Lenses |
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