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Dia. (mm) | EFL (mm) | CT 1 (mm) | CT 2 (mm) | Substrate | Coating | 比較 | 庫存號碼 | 價格 | Buy | |
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12.50 | 25.00 | 7.0 | 2.0 | N-BK7 / N-SF5 | MgF2 (400-700nm) | #68-160 | NT$10,780 Request Quote |
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Positive cylindrical lenses are ideal for applications requiring magnification in only one dimension. While spherical lenses focus an incident ray symmetrically, cylindrical lenses act in the same manner but in only one dimension. Typical applications include line generation with laser diodes, focusing a diverging beam onto a linear detector array or using a pair of cylindrical lenses to collimate and circularize the output of a laser diode.
An achromatic cylinder lens is a type of doublet lens consisting of a positive low-index (crown) element and a negative high-index (flint) element cemented together. The two materials are designed to work together to reduce spherical and chromatic aberrations. The additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic lens will have noticeable advantages over a comparable diameter and focal length singlet lens.
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