wide-angle beam
31CLidar — The CLidar is a scientific instrument used for measuring particulates (aerosols) in the lower atmosphere. CLidar stands for camera lidar, which in turn is an acronym for LIght Detection And Ranging. It is a form of remote sensing and used for… …
32Rainbow — For other uses, see Rainbow (disambiguation). Double rainbow and supernumerary rainbows on the inside of the primary arc. The shadow of the photographer s head on the bottom marks the centre of the rainbow circle (antisolar point). A rainbow is… …
33Measurement and Signature Intelligence — Measurement and Signature Intelligence, or MASINT, refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of the major disciplines mentioned above. As a means of collecting… …
34Deflection (engineering) — In engineering, deflection is the degree to which a structural element is displaced under a load. It may refer to an angle or a distance. The deflection distance of a member under a load is directly related to the slope of the deflected shape of… …
35Interactive whiteboard — at CeBIT 2007 …
36List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general …
37Angénieux retrofocus — Infobox lens design scheme = Retrofocus.svg year = 1931 (cine) 1950 (stills) author = H. W. Lee of Taylor, Taylor and Hobson (1931) Pierre Angénieux (1950) elements = 1+(4..5) aperture = f/|2.5The Angénieux retrofocus photographic lens is a wide… …
38Oculaire — Une collection de différents oculaires. Un oculaire est un système optique complémentaire de l objectif. Il est utilisé dans les instruments tels que les microscopes ou les télescopes pour agrandir l image produite au plan focal de l objectif. Un …
39Side-scan sonar — (also sometimes called side scan sonar, sidescan sonar, side looking sonar, side looking sonar and bottom classification sonar) is a category of sonar system that is used to create efficiently an image of large areas of the sea floor. This tool… …
40Focal length — The focal length of an optical system is a measure of how strongly it converges (focuses) or diverges (diffuses) light. A system with a shorter focal length has greater optical power than one with a long focal length. Thin lens approximation For… …
