focal plane
fo·cal plane
F f Transcription
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- US Pronunciation
- US IPA
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- [foh-kuh l pleyn]
- /ˈfoʊ kəl pleɪn/
-
- US Pronunciation
- US IPA
-
- [foh-kuh l pleyn]
- /ˈfoʊ kəl pleɪn/
Definitions of focal plane words
- noun focal plane a plane through a focal point and normal to the axis of a lens, mirror, or other optical system. Compare principal plane. 1
- noun focal plane the transverse plane in a telescope where the real image of a distant view is in focus. 1
- noun focal plane the plane that is perpendicular to the axis of a lens or mirror and passes through the focal point 0
- noun focal plane the plane in a telescope, camera, or other optical instrument in which a real image is in focus 0
Information block about the term
Origin of focal plane
First appearance:
before 1890 One of the 20% newest English words
First recorded in 1890-95
Historical Comparancy
Parts of speech for Focal plane
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
focal plane popularity
A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 32% of English native speakers know the meaning and use word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.
focal plane usage trend in Literature
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