apochromat


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apochromat

(ˌæpəˈkrəʊmæt) or

apochromatic lens

n
(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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References in periodicals archive ?
There is a specially designed Apochromat objective lens with high numerical aperture (0.
Superior optical performance is ensured through Nikon's new CFI Plan Apochromat Lambda series objectives with Nano Crystal Coat technology.
5 APO lens is an advanced apochromat using anomalous dispersion (AD) glasses and aspheric elements to provide sharp, bright images at all focal lengths.