- reflector tube
- • peilikaukoputki
English-Finnish dictionary. 2013.
English-Finnish dictionary. 2013.
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
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
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
Light tube — This article is about light tubes used for the illumination of buildings. For other uses of the phrase light tubes , see Light tube (disambiguation). Light tubes Light tubes or light pipes are used for transporting or distributing natural or… … 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
Crackle tube — A small battery powered Luminglas device, turned on. A small battery powered Luminglas device, turned … Wikipedia
UH88 — The University of Hawai i 88 inch (2.2 meter) telescope, also called UH88, UH2.2 or simply 88 by members of the local astronomical community, is situated at the Mauna Kea Observatory, and operated by the University s Institute for Astronomy. It… … Wikipedia
telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… … Universalium
Klystron — A klystron is a specialized linear beam vacuum tube (evacuated electron tube). Klystrons are used as amplifiers at microwave and radio frequencies to produce both low power reference signals for superheterodyne radar receivers and to produce high … Wikipedia
Source Four — 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. The ETC Source Four revolutionized stage lighting in 1992 cite news… … Wikipedia
Headlamp — Headlight redirects here. For other uses, see Headlight (disambiguation). High Beams redirects here. For the urban legend also known by that name, see Killer in the backseat. A motor scooter s front with an impractical number and variety of… … Wikipedia