Focal Plane

Some articles on focal, plane, focal plane:

Airy Disk - Mathematical Details
... where q is the radial distance from the optics axis in the observation (or focal) plane and (d=2a is the aperture diameter, R is the observation distance) is the f-number of the system ... If a lens after the aperture is used, the Airy pattern forms at the focal plane of the lens, where R = f (f is the focal length of the lens) ... At the focal plane of a lens ...
Construction Principle and Physics of Magnetic Tweezers - Bead Tracking System
... the beads produce diffraction rings in the focal plane of an objective which is placed under the tethering surface ... The detection of the position in the plane of the tethering surface is not complicated since it corresponds to the center of the diffraction rings ... diffraction pattern of the considered bead in a number of known distances from the focal plane ...
LAMOST - Optics
... of 1.1-metre hexagonal deformable segments, providing a focal plane 1.75 metres in diameter corresponding to a five-degree field of view ... This focal plane is tiled with fibre-positioning units, attached to 4000 fibres which transfer light to sixteen spectrographs below ... The available large focal plane may accommodate up to thousands of fibers, by which the collected light of distant and faint celestial objects down to 20.5 magnitude is fed into the ...
Focal Plane Array Testing
... Focal Plane Array testing is a specialized field of test engineering ... Focal plane array (FPA) imaging devices are used in missile guidance sensors, infrared astronomy, manufacturing inspection, and thermal imaging ... Focal plane array testing is the process of verifying and validating that these devices function correctly ...
Staring Array
... A staring array, staring-plane array, focal-plane array (FPA), or focal-plane is an image sensing device consisting of an array (typically rectangular) of light-sensing pixels at the focal plane of a lens ... the term "FPA" refers to an array at the focus of a radio-telescope (see full article on Focal Plane Arrays) ...

Famous quotes containing the word plane:

    In time the scouring of wind and rain will wear down the ranges and plane off the region until it has the drab monotony of the older deserts. In the meantime—a two-million-year meantime—travelers may enjoy the cruel beauties of a desert in its youth,....
    —For the State of California, U.S. public relief program (1935-1943)