Definition of optical path in English:

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optical path

noun

Physics
The distance of the path that in a vacuum would contain the same number of wavelengths as the actual path taken by a ray of light traveling through a medium.
Example sentences
  • For the interferometry to work, the optical paths have to be stable to fractions of a wavelength.
  • Two tandem cells with a total optical path length of 1 cm were used for measuring the difference spectra.
  • The compact nature of the photoreceptor mass requires the pigment screen to be extremely dense, as very short optical paths separate receptors from each other.

For editors and proofreaders

Syllabification: op·ti·cal path

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