| 释义 |
aspherical, a.|əsˈfɛrɪkəl, eɪ-|
[f. a- 14 + spherical a.]
= prec.
1922A. H. Levy tr. M. von Rohr's Eyes & Spectacles ii. 75 We consider an aspherical surface [of a lens] to be formed by adding material to a spherical surface. 1923Glazebrook Dict. Appl. Physics IV. 160/1 Aspherical lens, a type of spectacle lens designed to correct the aberration introduced when the eye looks towards the edge of the lens instead of to the centre. |