primary reflector
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Reflector (photography) — In photography and cinematography, a reflector is an improvised or specialised reflective surface used to redirect light towards a given subject or scene. Types Apart from certain highly specialized components found in enlargers, projectors and… … Wikipedia
Reflector oven — A reflector oven (sometimes known in older cooking literature as a tin kitchen [Sloat, Caroline (ed.), Old Sturbridge Village Cookbook , 2ed, Old Saybrook, CT: Globe Pequot Press, 1995, ISBN 1564407284] ), is a polished metal container designed… … Wikipedia
Cassegrain reflector — The Cassegrain reflector is a combination of two coaxial reflectors used in Cassegrain telescopes and radio antennas.First developed in 1672 by Laurent Cassegrain, this reflector is a combination of a primary concave mirror and a secondary convex … Wikipedia
Newton's reflector — A replica of Newton s second reflecting telescope that he presented to the Royal Society in 1672 described as the better of the two instruments Newton built[1]. The first reflecting telescope built by Sir Isaac Newton in 1668 … Wikipedia
Neutron reflector — A neutron reflector is any material that reflects neutrons. This refers to elastic scattering rather than to a specular reflection. The material may be graphite, beryllium, steel, and tungsten carbide, or other materials. A neutron reflector can… … Wikipedia
Compact linear Fresnel reflector — Fig.1: Example of a Traditional linear Fresnel reflector with one absorber. A compact linear Fresnel reflector (CLFR) – also referred to as a concentrating linear Fresnel reflector is a specific type of linear Fresnel reflector (LFR) technology.… … Wikipedia
Sulfur lamp — The sulfur lamp (also sulphur lamp) is a highly efficient full spectrum electrodeless lighting system whose light is generated by sulfur plasma that has been excited by microwave radiation. The technology was developed in the early 1990s, but,… … Wikipedia
History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… … Wikipedia
Stage lighting instrument — Stage lighting instruments are used in stage lighting to illuminate theatrical productions, rock concerts and other performances taking place in live performance venues. They are also used to light television studios and sound stages.Terminology… … Wikipedia
Astroscan — The Astroscan is a wide field Newtonian reflector telescope produced by the Edmund Scientific Company. It was designed by Norman Sperling and Mike Simmons to be used as an introductory telescope. [Cite web | title = About Norm Sperling |… … Wikipedia
ARO 12m Radio Telescope — The ARO 12m Radio Telescope (ARO12m or KP12m) is a 12 meter dish located on Kitt Peak, approximately 60 mi (100 km) from Tucson, Arizona at an elevation of 6215.8 ft (1894.5 m).HistoryThe 12m was built in 1967 under the umbrella of the National… … Wikipedia
