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apochromat |
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apochromat [ˌæpəˈkrəʊmæt], apochromatic lens n (Physics / General Physics) a lens, consisting of three or more elements of different types of glass, that is designed to bring light of three colours to the same focal point, thus reducing its chromatic aberration Compare achromat How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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5 APO lens is an advanced apochromat using anomalous dispersion (AD) glasses and aspheric elements to provide sharp, bright images at all focal lengths. |
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