资料来源 : Webster's Revised Unabridged Dictionary (1913)

Wollaston's doublet \Wol"las*ton's dou"blet\ [After W. H.
   Wollaston, English physicist.] (Optics)
   A magnifying glass consisting of two plano-convex lenses. It
   is designed to correct spherical aberration and chromatic
   dispersion.