aplanatic focus love

aplanatic focus

Definitions

from the GNU version of the Collaborative International Dictionary of English

  • adj. the point or focus from which rays diverging pass the lens without spherical aberration. In certain forms of lenses there are two such foci; and it is by taking advantage of this fact that the best aplanatic object glasses of microscopes are constructed.
  • n. See under Aplanatic.

Etymologies

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Examples

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