CEFR C1

achromatic lens

noun

Meaning

A compound lens designed to minimize chromatic aberration by bringing light of two different wavelengths into focus at the same plane.

Examples

  • The telescope's achromatic lens provided a remarkably sharp view of the distant nebula.
  • Engineers replaced the standard glass element with an achromatic lens to eliminate color distortion in the prototype.

Synonyms: lens, objective, optical element, apochromatic lens