noun
achromatic lens
Technical term in optics for a lens designed to limit chromatic aberration. Compare アポクロマート (apochromat).
See also: アポクロマート
この望遠鏡にはアクロマチックレンズが使われている。
This telescope uses an achromatic lens.
Variant with interpunct, sometimes used for clarity.
アポクロマート (apochromat) is a more advanced lens that corrects chromatic aberration for three wavelengths, while an achromatic lens corrects for two.
From English 'achromatic lens'.