OP0527 Meniscus Positive Lenses
| Catalog No. | OP0527 |
| Surface Quality | 60-40 scratch and dig |
These lenses may be used to increase the numerical aperture of a positive lens assembly, without an undue increase in the aberrations.
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Description
Specification
Materials: BK7
Specification for Lenses (Cylindrical Lenses)
|
Material |
BK7 (Or Fused Silica) |
|
Design Wavelength |
546.1nm (632.8 nm for Cylindrical lenses ) |
|
Design Index |
1.5183 ±0.0005 (1.5147 for Cylindrical lenses) |
|
Flatness |
l/4@632.8nm (x |
|
Diameter Tolerance |
+0.0, -0.15mm |
|
Paraxial Focal Length |
±2% |
|
Center Tolerance |
3 arc minutes |
|
Clear Aperture |
>80% |
|
Surface Quality |
60-40 scratch and dig |
|
Bevel |
0.25 mm x 45° |
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