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单词 concentric lens
释义

Definition of concentric lens in English:

concentric lens

noun
Photography historical

  • A compound lens consisting of planoconvex and planoconcave lenses of such dimensions that the convex and concave surfaces of the combined lens represent portions of two concentric spheres.

Origin

Late 19th century; earliest use found in Journal of the Society of Arts.

Definition of concentric lens in US English:

concentric lens

noun
Photography historical

  • A compound lens consisting of planoconvex and planoconcave lenses of such dimensions that the convex and concave surfaces of the combined lens represent portions of two concentric spheres.

Origin

Late 19th century; earliest use found in Journal of the Society of Arts.
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更新时间：2024/11/11 18:53:11