Definition of achromat in English:

achromat

Line breaks: achro|mat
Pronunciation: /ˈakrə(ʊ)mat
 
/

noun

  • A lens that transmits light without separating it into constituent colours.
    More example sentences
    • Quartz-sapphire and quartz-lanthanum fluoride achromats provide better performance.
    • The long focus achromat is certainly not portable but it does give superb images at a reasonable cost.
    • The two-element lenses used in today's achromats greatly reduce the chromatic aberration.

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Pronunciation: skəʊʃ
noun
a small amount; a little