ERS stands for Ellipsoidal Reflector Spotlight (live stage lighting). A lighting unit consisting of a reflector, lamp, single or multiple lens system, and framing device; power requirements are 250-2000 watts. Write it here to share it with the entire community. Three-dimensional geodetic coordinates (latitude, longitude and ellipsoidal height) based on a datum specified in 1.2 and using the parameters of the GRS80 ellipsoid. ellipsoidal spotlight translation in English-French dictionary. An envelope, a filament and a base. How is Ellipsoidal Reflector Spotlight (live stage lighting) abbreviated? This rudimentary combination of source, reflector, and convex glass is the precursor to the optical assembly of the 19th-century limelight, the plano-convex spotlight and from there contemporary stage lights, especially the development of the ubiquitous ellipsoidal reflector spotlight and the fresnel spotlight. 1) The fixture shall be a Phoenix ellipsoidal spotlight by Altman Lighting, Inc., or approved equal. B. Beam angle is what you see when you read Ellipsoidal degrees. Ellipsoidal reflector floodlight listed as ERF. Field angle usually refers to a wash light and is the angle beyond which the outer field of light drops off. livedesignonline.com Vari-Lite Europe has taken delivery of its first VL1000™ ellipsoidal reflector spotlight units. (Officially a “gobo” is any object that cuts or shapes light.) source four) with shutters, accessory slot, gobo slot, and adjustable/changeable barrel. Fade In or Fade out. Ellipsoidal Reflector An ellipse is "a closed curve, generated by a point moving in such a way that the sum of its distances from two fixed points is constant." 1. 1) The fixture shall be constructed of die cast aluminum free of defects such as burrs, pits and malformations. In 1932, the Kliegl brothers installed their new ellipsoidal reflector spotlights in the Radio City. 1930s Ellipsoidals A historic year for stage lighting, 1933 brought with it the ellipsoidal reflector spotlight (ERS). The ETC (Electronic Theatre Controls) Source Four (also known unofficially as Source 4 or S4 ) is an ellipsoidal reflector spotlight, a type of spotlight used in stage lighting. Ellipsoidal Reflector Spotlight Source Four 25º/50º. Definition. Ellipsoidal Reflector Spotlight (ERS) is a type of stage lighting instrument, named for the ellipsoidal reflector used to collect and direct the light through a barrel that contains a lens or lens train. 1930s Ellipsoidals A historic year for stage lighting, 1933 brought with it the ellipsoidal reflector spotlight (ERS). Century Lighting). A) General 1. There may be more than one meaning of ERS, so check it out all meanings of ERS one by one. The unit shall have four ERS definition / ERS means? Leko refers to the Lekolite released in 1933 that became extremely popular, and while the actual lights bearing the brand name Leko have become less common, the term has stuck for all ERS instruments. Two plano-convex lenses arranged in a belly-to-belly configuration are mounted in the barrel and can be moved to … ellipsoid The … It is Ellipsoidal reflector floodlight. Lamp up max. An Ellipsoidal reflector spotlight or Profile Spotlight (abbreviated to Ellipsiodal or ERS) is a light with a strong, well defined beam, and is very versatile.Leko and Source Four are two of the most common brand names of these lights. Looking for the shorthand of Ellipsoidal Reflector Spotlight?This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: Ellipsoidal Reflector Spotlight. Definition. A spotlight that embodies an ellipsoidal reflector and framing shutters, and sometimes an iris and pattern slot. A followspot is a special type of profile lantern with addional controls, extra handles, sights, built-in colour changer and iris, and is usually of much higher power. Hard and soft light are different types of lighting that are commonly used in photography and filmmaking.Soft light is light that tends to "wrap" around objects, projecting diffused shadows with soft edges. 575 Watt (HPL lamp) £325. Colour: Black. 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