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apochromat

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
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


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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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