wire lens
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Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Fresnel lens — A Fresnel lens (pronounced [ frɛz.nəl] or [freɪ nɛl] ) is a type of lens invented by French physicist Augustin Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large aperture and short focal… … Wikipedia
Optical lens design — refers to the calculation of lens construction parameters (variables) that will meet a set of performance requirements and constraints, including cost and schedule limitations. Construction parameters include surface profile types (spherical,… … Wikipedia
Canon EF 1200mm lens — Infobox photographic lenses name = EF 1200mm f/5.6L USM caption = maker = Canon feat is = n feat usm = y feat sbf = feat macro = feat special = type = p application = Super Telephoto flength = 1200mm fov = aperture = f/5.6 f/32 groups = 10… … Wikipedia
Canon EF 85mm lens — The EF 85mm lenses are a group of medium telephoto prime lenses made by Canon Inc. that share the same focal length.These lenses have an EF type mount, that fits the Canon EOS line of cameras. Focal lengths of 70mm to 200mm are usually used for… … Wikipedia
Nimrud lens — The Nimrud Lens The lens on display in the British Museum Material Rock crystal Size Diameter: 38 mm (1.5 in) Thickness: 23 mm (0.9 in)[1] … Wikipedia
Collimating lens — Collimate Col li*mate, v. t. [imp. & p. p. {Collimated}; p. p. & vb. n. {Collimating}.] [See {Collimation}.] (Physics & Astron.) To render parallel to a certain line or direction; to bring into the same line, as the axes of telescopes, etc.; to… … The Collaborative International Dictionary of English
Barb Wire (film) — Infobox Film name = Barb Wire caption = Movie poster for Barb Wire director = David Hogan producer = Dennis Brody Robert Del Valle Peter Heller Ray Manzella Todd Moyer Mike Richardson Brad Wyman writer = Chris Warner (comics) Ilene Chaiken… … Wikipedia
Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… … Wikipedia
List of instruments used in ophthalmology — Instruments used specially in Ophthalmology are as follows: [1] Contents 1 Instrument list 2 Image gallery 3 References Instrument list … Wikipedia
North American railroad signals — Main article: North American railway signaling Baltimore and Ohio Railroad Color Position Light bracket masts at Magnolia, West Virginia North American railroad signals generally fall into the category of multi headed electrically lit units… … Wikipedia
