Topic
Parabolic reflector
About: Parabolic reflector is a research topic. Over the lifetime, 3375 publications have been published within this topic receiving 30735 citations. The topic is also known as: paraboloid reflector & paraboloidal reflector.
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Patent•
30 Sep 2008
TL;DR: In this article, a half-circular-planar reflector with a cut-a-way-triangle, hinged and attached to a halfshell-parabolic-reflector, is used for smelting metals.
Abstract: Melting metals using the sun's energy is not new, but is new is making the technology ergonomic, and easy to use. Invented is a half-circular-planar-reflector with a cut-a-way-triangle, hinged and attached a half-shell-parabolic-reflector. When the sun is overhead, the sun's energy reflects off the flat half-circular-planar-reflector to a half-shell-parabolic-dish-reflector, which redirects the sun's energy to a crucible for smelting metals, which is also the focus of the sun's energy. The entire assembly rotates on top of a turntable, which can be steel wheel, floating on compressed air, bicycle wheels, or other suitable methods. The entire assembly rotates about a crucible located at the focal of the sun's energy. A smaller version of the smelter can be used for solar cooking.
9 citations
TL;DR: An overview of the different types of solar thermal receivers and their applications is provided in this paper , where the advantages of renewable energy-based systems are discussed first, followed by an analysis of the environmental issues associated with the use of conventional energy sources.
Abstract: This paper provides an overview of the different types of solar thermal receivers and their applications. The advantages of renewable energy-based systems are discussed first, followed by an analysis of the environmental issues associated with the use of conventional energy sources. An attempt is made to provide a historical overview of the uses of solar energy in the field of solar receivers, followed by a discussion of the various kinds of solar receivers, comprising a flat-plate receiver, compound parabolic receiver, evacuated tube, parabolic trough, parabolic dish, Fresnel lens, solar tower, Scheffler concentrator and field collectors. The main solar system element used for the solar receiver is also described.
9 citations
Patent•
26 Aug 1976
TL;DR: The paraboloid is maintained in its shape by differences in air or gas pressure as mentioned in this paper, which can be maintained by a rigid annular structure supported by a transparent foil or plate.
Abstract: The parabolic mirror assembly is intended for concentration of sunlight for energy recovering by devices utilising light or heat, such as directly converting semi-conductor solar cells. The mirror (1) consists of a plastics foil for laminated plastics tissue, provided on one side with a mirror coating and having a shape of a paraboloid. The latter edge is connected to a rigid annular structure (3) supporting the mirror. The paraboloid is maintained in its shape by differences in air or gas pressure. Preferably a transparent foil or plate (12) is clamped in front of the mirror opening, which may be divided into smaller sectors by a support net. The annular structure is preferably mounted inside the parabolid edge.
9 citations
Patent•
11 Apr 1988
TL;DR: In this article, a light beam intensifier with a paraboloidal reflector (12), a mirror (14), a single light tube (16), and a window (18) is presented.
Abstract: A light beam intensifier (10) having a paraboloidal reflector (12) a mirror (14) a single light tube (16) and window (18). The mirror (14) is placed forward of the forcal point f of the reflector (12) and has the light tube (16) affixed thereto to be positioned coincident with the focal point f. As the light tube (16) is energized, light rays (52) emanating directly therefrom are reflected from the parabolic reflector (12) to form a first beam path and the forward shining light rays (54) are reflected from the reflective surface (34) of the mirror (14) to be reflected off the paraboloidal reflector (12) to form a composite light beam path (56) having a predetermined pattern.
9 citations
Patent•
16 Sep 1994
TL;DR: In this paper, a parabolic or approximately parabolic reflector is provided that is connected to a support strip supporting the semiconductor chip such that the latter is as close as possible to the focal point of the parabolic surface of the reflector.
Abstract: The invention relates to an opto-electronic component having a narrow aperture angle. The conventional design of components transmitting radiation or reacting to radiation and concentrating that radiation with the aid of lenses results, on account of the increasing distance between the lens and the semiconductor chip, in increasing component dimensions in the radiating or detecting direction with an increasingly narrow aperture angle. In accordance with the invention, a parabolic or approximately parabolic reflector is provided that is connected to a support strip supporting the semiconductor chip such that the latter is as close as possible to the focal point of the parabolic or approximately parabolic surface of the reflector. The reflector is preferably connected to the support strip by engaging elements and surrounded by a housing.
9 citations