- 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
| 单词 | apochromat |
| 释义 | Collins Concise English Dictionary © HarperCollins Publishers:: apochromat /ˌæpəˈkrəʊmæt/, apochromatic lens n
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