What does apochromatic mean?

apochromatic meaning in General Dictionary

without chromatic and spherical aberration said esp of a lens by which rays of three or even more colors are taken to equivalent focus their education of achromatism thus obtained becoming much more full than in which two rays just are thus concentrated as in the standard achromatic unbiased

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  • fixed for both chromatic and spherical aberration

Sentence Examples with the word apochromatic

Abbe in 1886 in the so-called apochromatic objective.

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