🔬 Correcting color 🔬 A special lens

apochromat

9.9

Made so three colours of light come to the same focus point

adjective
/ˌæpəˈkroʊmæt/

Specialized

: apocromático

The scientist used an apochromat lens to achieve sharper images in his microscope.

Examples

Photographers often prefer apochromat objectives to minimize color fringing in their pictures.
An apochromat design is essential for high-precision optical instruments.
This apochromat lens eliminates most color fringing.
I prefer using an apochromat for astrophotography.
The scientist used an apochromat lens to achieve sharper images in his microscope.
Photographers often prefer apochromat objectives to minimize color fringing in their pictures.
An apochromat design is essential for high-precision optical instruments.

Synonyms

apochromatic

vsapochromat

Specialized

1 9.9

A lens that shows images with very little color on the edges

is the noun form rather than an adjective form describing the same optical correction

How Corrected

apochromat

Specialized

9.9

achromatic

1 8.1

corrected

3.7

uncorrected

3 5.1

Surface Forms

apochromat positive

Morphology

apochromat = apochromatic (semi-transparent) = apo + chromat

Formed from the prefix 'apo-' + root 'chromat(ic)'; the parts signal a relation to colour correction but the exact technical meaning requires specialized knowledge beyond basic morpheme knowledge.

Etymology

Apochromat comes from the Greek parts apo- 'away' and chroma 'color'. So, to call a lens an apochromat is to say it pushes color errors 'away' so different colors meet in one place and the image looks much sharper.