focal plane
Noun
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Noun
focal plane (plural focal planes)
- (optics) Any plane perpendicular to the axis of a lens or mirror.
- (optics) Such a plane, in a camera, microscope etc, in which the real image is in focus.
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.003