optic axis
- noun
- /ˈɑptɪk ˈæksɪs/
- Specialized
:
eje óptico
- Light passing along the optic axis of a calcite crystal will not be split into two rays.
Examples
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An optic axis is the line through which light travels without refraction in a lens or crystal.
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Mineralogists often determine the number and direction of optic axes to classify crystals.
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The optic axis is a fundamental concept in the study of birefringence.
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The optic axis of the lens is crucial for clarity.
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An optic axis runs through the center of the crystal.
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Light passing along the optic axis of a calcite crystal will not be split into two rays.
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Understanding the optic axis helps in the analysis of how different materials affect light.
Synonyms
44
5.1
A straight line that an object turns around, like the Earth turning
An invisible straight line through a lens or mirror center that light follows without bending
Surface Forms
Morphology
The compound combines 'optic' (relating to vision/eyes) with 'axis' (a line or central direction), so an informed guess — 'a line related to optics in a lens or eye' — follows directly from the constituents. Although the precise technical nuance about light not being split is specialist, the basic concept is compositional and cross-linguistically transparent (e.g. Spanish 'eje óptico'), so a B1 learner who knows both words would grasp the general meaning.
Etymology
Optic axis names the straight axis or line in a lens, crystal, or eye where light goes straight and is not split or bent. Imagine a clear tunnel where a beam passes without changing — that's why the optic axis means the direction where light does not 'split' or 'bend'.