彎月透鏡
We call them Meniscus lenses because the two curves of the lens lies on the same direction, just like a meniscus when view by its cutaway view.
Specifications
Material: .............................BK7, Silica, CaF2, Silicon, etc.
Diameter Tolerance: ....................................+0.0, -0.1 mm
tc tolerance: .....................................................±0.1 mm
Clear Aperture: .......................................................>85%
Surface Quality: ......................................................40-20
Flatness: .......................................................N=3, △N=1
Centration: ....................................................±3 arc mins
Size (φ): ............................................3 to 200mm or larger
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Part No.
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F(mm)
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Dia(mm)
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Rad1(mm)
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Rad2(mm)
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Tc(mm)
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Te(mm)
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fb(mm)
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PML 101
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100.0
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25.4
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33.72
|
90.0
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4.0
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2.5
|
97.5
|
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PML 102
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125.0
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25.4
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38.47
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90.0
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4.0
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2.8
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121.8
|
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PML 103
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150.0
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25.4
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42.52
|
90.0
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4.0
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3.0
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146.3
|
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NML 101
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-100.0
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25.4
|
90.0
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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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NML 102
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-125.0
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25.4
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90.0
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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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NML 103
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-150.0
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25.4
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90.0
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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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Note: Other sizes and specifications are available upon request.
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