focal plane


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focal plane

n
1. (General Physics) the plane that is perpendicular to the axis of a lens or mirror and passes through the focal point
2. (General Physics) the plane in a telescope, camera, or other optical instrument in which a real image is in focus

fo′cal plane`



n.
a plane through a focal point and perpendicular to the axis of a lens, mirror, or other optical system.
[1890–95]

focal plane

The plane, perpendicular to the optical axis of the lens, in which images of points in the object field of the lens are focused.
Translations
References in periodicals archive ?
The beauty of the natural bokeh that increases gradually as the distance from the focal plane increases is best seen with portrait photography.
[10] discovered that the output current of their new multijunction solar cell decreased slightly on the designed focal plane of the lens.
The observation error is analyzed in Section 2, and the observation based on focal plane imaging was modeled.
The fluorescent signals are conceived to come from the plane at the chosen depth which is named focal plane.
More manufacturers are adding first focal plane reticles these days, and Burris' Ballistic Plex E1 FFP is a great example.
Available in the second focal plane (SEP) with multiple reticle options, both scopes feature a FREE SBT (SIG Ballistic Turret) calibrated to a shooter's unique ballistic and environmental conditions.
(1) Ground calibration method [7], which is also called program control method: according to the actual measured disturbances, such as temperature, atmosphere pressure, and distance to the ground, which would change the location of the focal plane, this method uses a preinstalled program which is calibrated in advance to adjust the actual position of the focal plane.
The top-quality focusing mechanism moves smoothly without backlash, optimally supporting the photographer's creative interplay with the focal plane of high-speed fixed focal lengths.
As he recounts, "After much brainstorming with Zemax, I realized that excellent field corrections could be obtained by including just two simple lenses ahead of the focal plane."
The new flagship fullA[degrees]frame mirrorless camera, the [eth]7R II, delivers an innovative imaging experience with the world's first backA[degrees]illuminated 35mm fullA[degrees]frame senA[degrees] sor Exmor R CMOS sensor, which realises highA[degrees]resoluA[degrees] tion (approximately 42.4 effective megapixels), highA[degrees]sensitivity (expandable up to ISO 102400) and highA[degrees]speed AF response up to 40 per cent faster than the original [eth]7R, thanks to 399 focal plane phase detection AF points.