Meaning Of The Word Focal plane

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What's the definition of Focal plane? Find Focal plane meanings, definitions and more at the Real Dictionary online.

Focal plane Meaning

Focal plane Definition
Focal plane Definition

What's The Definition Of Focal plane?

focal plane in American English
noun: a plane through a focal point and normal to the axis of a lens, mirror, or other optical system

focal plane in British English
noun: the plane that is perpendicular to the axis of a lens or mirror and passes through the focal point

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