- parabolic lens
- Physicsபரவளைய வில்லை
English-Tamil dictionary. 2014.
parabolic lens
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Parabolic aluminized reflector light — A Parabolic Aluminized Reflector luminaire 20 PAR cans A parabolic aluminized refle … Wikipedia
Parabolic Aluminized Reflector Lamp — A type of lamp having a lens of heavy durable glass that focuses the light. They have longer lifetimes with less lumen depreciation than standard incandescents … Energy terms
Compound refractive lens — A Compound refractive lens (CRL) is a series of individual lenses arranged in a linear array in order to achieve focusing of X rays in the energy range of 5 40 keV. For all materials the refractive index for X rays is close to 1, hence a single… … Wikipedia
Zoom lens — Nikkor 28 200 mm zoom lens, extended to 200 mm at left and collapsed to 28 mm focal length at right A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed… … 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
Explosive lens — An explosive lens as used, for example, in nuclear weapons is a highly specialized explosive charge. In general, it is a device composed of several explosive charges that are shaped in such a way as to change the shape of the detonation wave… … Wikipedia
Supercritical angle fluorescence microscopy — (SAF) is a technique to detect and characterize fluorescent species (proteins, biomolecules, pharmaceuticals, etc.) and their behaviour very close or even adsorbed or linked at surfaces. The method is able to observe molecules in a distance of… … Wikipedia
Hot cathode — is also a name for a hot filament ionization gauge, a vacuum measuring device.In vacuum tubes, a hot cathode is a cathode electrode which emits electrons due to thermionic emission. ( Cf. cold cathodes, where field emission is used and which do… … Wikipedia
параболическая линза ускорителя — Магнитная линза ускорителя с аксиально симметричным полем в области, ограниченной токовыми поверхностями двух соприкасающихся вершинами параболоидов вращения. [ГОСТ Р 52103 2003] Тематики ускорители заряженных частиц EN parabolic lens … Справочник технического переводчика
Nonimaging optics — (also called anidolic optics)[1][2] is the branch of optics concerned with the optimal transfer of light radiation between a source and a target. Unlike traditional imaging optics, the techniques involved do not attempt to form an image of the… … 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
