achromatizationn.
/əˌkrəʊmətʌɪˈzeɪʃn/, /eɪˌkrəʊmətʌɪˈzeɪʃn/, U.S. /eɪˌkroʊmədəˈzeɪʃ(ə)n/, /eɪˌkroʊməˌtaɪˈzeɪʃ(ə)n/, /æˌkroʊmədəˈzeɪʃ(ə)n/, /æˌkroʊməˌtaɪˈzeɪʃ(ə)n/ Optics.
The action or process of achromatizing something, esp. a lens in order to reduce or eliminate chromatic aberration.
ΚΠ
1831 Edinb. Jrnl. Sci. 5 65 The only kind of achromatisation produced by convex lenses..is when two are adjusted to an interval equal to one-half the sum of their focal distances.
1908 Proc. Royal Soc. A. 80 413 For the achromatisation to extend over any range of wave-length, it is necessary that the ratio of the dispersions of the two slabs shall be constant throughout that range.
1939 R. Kingslake in K. Henney & B. Dudley Handbk. Photogr. iii. 37 The process of achromatization automatically removed both of the chromatic aberrations, thus improving the definition in a twofold manner.
2004 Jrnl. Quantitative Spectroscopy & Radiative Transfer 88 321 Upon achromatization, the three-component waveplates are significantly better than the achromatic quartz–MgF2 waveplates.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).
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n.1831