focal parameter

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• Focal plane array testing — (under development sep 15)Focal Plane Array testing (FPA testing) is the test engineering process of validation and verification (V V) of operation of focal plane array imaging devices, device under test (DUT), at various levels of the… …   Wikipedia

• focal length — (f)    The distance from the lens to the principal focus is a primary descriptive parameter for the lens, when considering a thin simple lens. Focal length determines image size at a given lens to subject distance …   Forensic science glossary

• Affine focal set — In mathematics, and especially affine differential geometry, the affine focal set of a smooth submanifold M embedded in a smooth manifold N is the caustic generated by the affine normal lines. It can be realised as the bifurcation set of a… …   Wikipedia

• Beam parameter product — In laser science, the beam parameter product (BPP) is the product of a laser beam s divergence angle (half angle) and the radius of the beam at its narrowest point (the beam waist).cite web|url=http://www.rp photonics.com/beam parameter… …   Wikipedia

• Parabolic constant — In mathematics, the ratio of the arc length of the parabolic segment formed by the latus rectum of any parabola to its focal parameter is a constant, denoted ! P 2 .In the diagram, the latus rectum is pictured in blue, the parabolic segment that… …   Wikipedia

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• The Dark Energy Survey — DES logo The Dark Energy Survey (DES) is a survey that aims to probe the dynamics of the expansion of the universe and the growth of large scale structure. The collaboration is composed of research institutes and universities from United… …   Wikipedia