Definition of afocal in English:

afocal

adjective eɪˈfəʊkl

Optics

Of a lens or other optical system: that transfers an image without bringing it to a focus, i.e. so that rays entering parallel emerge parallel; relating to or constituting such a system.

Origin

Late 19th century; earliest use found in Proceedings of the Royal Society of London. From a- + focal.

Definition of afocal in US English:

afocal

adjectiveeɪˈfəʊkl

Optics

Of a lens or other optical system: that transfers an image without bringing it to a focus, i.e. so that rays entering parallel emerge parallel; relating to or constituting such a system.

Origin

Late 19th century; earliest use found in Proceedings of the Royal Society of London. From a- + focal.

单词	afocal
释义	Definition of afocal in English: afocal adjective eɪˈfəʊkl Optics Of a lens or other optical system: that transfers an image without bringing it to a focus, i.e. so that rays entering parallel emerge parallel; relating to or constituting such a system. Origin Late 19th century; earliest use found in Proceedings of the Royal Society of London. From a- + focal. Definition of afocal in US English: afocal adjectiveeɪˈfəʊkl Optics Of a lens or other optical system: that transfers an image without bringing it to a focus, i.e. so that rays entering parallel emerge parallel; relating to or constituting such a system. Origin Late 19th century; earliest use found in Proceedings of the Royal Society of London. From a- + focal.
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