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Plano Concave Lens
Lens
>>> Plano Concave Lens
Plano-Concave(PV) lenses have one flat and one inward curved surface.
PV lenses have a negative focal length and are used for image reduction or to
spread light.
BK7 Plano-Concave Lenses
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Material: |
BK7 grade A optical glass |
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Design Wavelength: |
546.1nm |
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Design Index: |
1.5183 ± 0.00005 |
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Diameter Tolerance: |
-0.0, -0.15mm |
| Paraxial
Focal Length: |
± 2% |
| Centration: |
< 3 arc
minutes |
| Clear Aperture: |
>85% |
| Surface Figure: |
l/4@632.8nm |
| Surface Quality |
60-40 scratch and dig |
| Bevel: |
0.25 mm x 45° |
Fused Silica Plano-Concave Lenses
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Material: |
UV graded Fused Silica |
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Design Wavelength: |
546.1nm |
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Design Index: |
1.46008 ± 0.00005 |
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Diameter Tolerance: |
-0.0, -0.15mm |
| Paraxial
Focal Length: |
± 2% |
| Centration: |
<3 arc
minutes |
| Clear Aperture: |
>85% |
| Surface Figure: |
l/4@632.8nm |
| Surface Quality |
60-40 scratch and dig |
| Bevel: |
0.25 mm x 45° |
Sapphire Plano-Concave Lenses
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Material: |
Optical Grade Sapphire Crystal |
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Design Wavelength: |
546.1nm |
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Design Index: |
1.771@546.1nm |
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Diameter Tolerance: |
-0.0, -0.15mm |
| Paraxial
Focal Length: |
± 2% |
| Centration: |
< 3 arc
minutes |
| Clear Aperture: |
>85% |
| Surface Figure: |
l/4@632.8nm |
| Surface Quality |
80-50 scratch and dig |
| Bevel: |
0.25 mm x 45° |
CaF2 Plano-Concave Lenses
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Material: |
Optical Grade CaF2 Single Crystal |
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Design Wavelength: |
1.5mm |
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Design Index: |
n=1.425 |
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Diameter Tolerance: |
-0.0, -0.15mm |
| Paraxial
Focal Length: |
± 2% |
| Centration: |
< 3 arc
minutes |
| Clear Aperture: |
>85% |
| Surface Figure: |
l/4@632.8nm |
| Surface Quality |
80-50 scratch and dig |
| Bevel: |
0.25 mm x 45° |
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