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| Achromatic Doublets |
Optical Component > Precision
Optics > Lenses |
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| These lenses are made of two different glasses, crown
and flint. They are designed to perform well throughout the entire
visible spectrum with spherical and chromatic aberrations corrected
to the required specification even to the diffraction limits. Their
ability of producing sharper images is superior to that of the single
element lenses. |
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| Specifications |
| Focal Length Tolerance |
¡À2% |
| Diameter Tolerance |
¡À0.1mm |
| Center Thickness Tolerance |
0.2mm |
| Surface quality |
60/40 |
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