focal plane


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Related to focal plane: focal point

focal plane

See focal length.

focal plane

[′fō·kəl ‚plān]
(optics)
A plane perpendicular to the axis of an optical system and passing through the focal point of the system.

focal plane

focal plane
The plane occupied by the film at the focal point of the lens. It can be positive or negative; it is commonly referred to as positive and negative planes, respectively.
References in periodicals archive ?
In the process of moving from 5 mm above the focal plane to 5 mm below the focal plane, no change can be observed to the overall size of the spot, almost covering the surface of the cell, while the spot color slowly changed from red and orange to blue and violet.
The subastral point is located at (E 0[degrees], N 0[degrees]), and the focal plane of the detector is area array of 1024 x 1024 infrared CCD.
The primary contribution of this work is the construction of system matrix, which is achieved through the definition of a new unknown parameter and depth conversion matrices with a chosen focal plane. The new unknown parameter is defined through the first mean value theorem for definite integrals and represents a weighted average of the fluorescent yields along the detection direction.
Therefore, the imaging CCD detector is located in the best position of the focal plane.
Available with either a front or rear focal plane BDC reticle (two reticles options are offered), you can have exactly what you want.
Raytheon offers uncooled VOx Microbolometer long-wave focal plane array in both 320x240 and 640x480 format with 25 micron pixel pitch, while in the SWIR spectrum band, it offers uncooled 640x512, 1280x1024 and 1920x512 formats with 20-micron pixel pitch cores.
It is worth noting that a single prism could also compensate for the greater dispersion at lower elevations, provided it could be moved towards the objective thus increasing the distance from the prism to the focal plane. The difficulty of making a corrector with a movable prism means that dispersion correctors made for the amateur market have normally been of the dual-prism type.
Through partnerships with leading suppliers of cutting edge infrared focal planes, IRCameras' products are designed to provide high performance and sensitivity in an advanced yet user-friendly camera platform.
The ground plane is chosen as the focal plane, i.e., [z.sub.f] = 0.
The 20 uM depth keeps the sperm in a single focal plane and the 6uL loading volume reduces QC expense, making its companion AQC[TM] Sperm Count Quality Control even more cost effective.
He covers geometrical optics, aberrations and image quality, radiometry, optical sources, detectors and focal plane arrays, and optomechanical design.