achromatic lens
- noun
- /ˌeɪkrəˈmætɪk lɛnz/
- Specialized
- By applying the principles of optics, the engineer designed an achromatic lens to improve the quality of images in telescopes.
Examples
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An achromatic lens helps photographers eliminate blurriness caused by chromatic aberration when taking pictures.
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Removing this property of the lens can only be achieved by joining two lenses together, which absorb and disperse light, resulting in an achromatic lens.
Academic text (2000) -
I just installed a brand-new achromatic lens on my cereal box refracting telescope.
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The scientist used an achromatic lens to capture clear images without color distortion during her observations.
Synonyms
A person who cannot see colors and sees only shades of gray
How Corrected
- Specialized
- Specialized
Surface Forms
Morphology
The phrase is a straightforward adjective + noun composition: 'achromatic' (without or minimizing color) modifies 'lens' (an optical device), so a learner who knows both words can infer it is a lens that reduces or eliminates color distortion. This follows a regular, cross-linguistically common modifier pattern, making the meaning directly derivable from the parts.
Etymology
Achromatic lens comes from the parts a- (meaning 'without') and chromatic (meaning 'color'). Lens makers put different kinds of glass together so the colors of light cancel and you do not see rainbow edges, so the name describes a lens that makes images 'without color' distortion.