| 单词 |
aplanatic |
| 释义 |
aplanatic, a.|æpləˈnætɪk| [f. Gr. ἀπλάνητ-ος free from error (f. ἀ priv. + πλανά-ειν to wander) + -ic.] Free from aberration; spec. applied to a compound lens which is free from spherical aberration or divergence of rays of light from the focus.
1794G. Adams Nat. & Exp. Phil. II. xxii. 468 As..[Blair] conceives that he has thus removed the aberration, he distinguishes his instrument by the term Aplanatic. 1867J. Hogg Microsc. i. ii. 26 An ‘aplanatic doublet’ consisting of a double convex lens and a meniscus. 1869Tyndall Light §165 A spherical lens cannot be rendered aplanatic. |

英语词典包含277258条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。
相关内容:
相关热词搜索:aplanatic英英词典英英释义英语词汇意思用法释义英语