constringence

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constringence

(kənˈstrɪndʒəns)
n
(General Physics) physics inverse of the dispersive power of a medium
References in periodicals archive ?
A further disadvantage of higher indices is the lowering of the Abbe number or V-value.
We measured the dependence of the birefringence, Abbe number, the refractive index, and the transmittance on the EB irradiation power.
The material boasts a stable Abbe number at 10 to 60 C and a refractive index that's stable at those temperatures and wavelengths from 40 to 700 nm.
The acrylic material has an index number of 1.49 and ABBE number of 61.4, and exhibits low birefringence.