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Words related to refractive

re·frac·tive
R r

  • dispersive power

    a measure of the ability of a substance to disperse light, equal to the quotient of the difference in refractive indices of the substance for two representative wavelengths divided by the difference of the refractive index for an intermediate wavelength and 1.

  • angle of deviation

    the angle between the direction of the refracted ray and the direction of the incident ray when a ray of light passes from one medium to another

  • anomalous dispersion

    a sudden change in the refractive index of a material for wavelengths in the vicinity of absorption bands in the spectrum of the material.

  • astigmatism

    If someone has astigmatism, the front of their eye has a slightly irregular shape, so they cannot see properly.

  • diopter

    Optics. a unit of measure of the refractive power of a lens, having the dimension of the reciprocal of length and a unit equal to the reciprocal of one meter. Abbreviation: D.

  • emmetropia

    The condition of perfect vision, where images are correctly brought to a focus on the retina.
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