aberration-free

См. также в других словарях:

• aberration — aberrational, adj. /ab euh ray sheuhn/, n. 1. the act of departing from the right, normal, or usual course. 2. the act of deviating from the ordinary, usual, or normal type. 3. deviation from truth or moral rectitude. 4. mental irregularity or… …   Universalium

• Aberration of light — Light from location 1 will appear to be coming from location 2 for a moving telescope due to the finite speed of light, a phenomenon known as the aberration of light. The aberration of light (also referred to as astronomical aberration or stellar …   Wikipedia

• Optical aberration — v · d · e Optical aberration …   Wikipedia

• Reflecting telescope — 24 inch convertible Newtonian/Cassegrain reflecting telescope on display at the Franklin Institute. A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light… …   Wikipedia

• Catadioptric system — A 150 mm aperture catadioptric telescope (Maksutov) A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors (catoptrics). Catadioptric… …   Wikipedia

• Korrektor (Teleskop) — Ein Korrektor ist eine spezielle Anordnung von Linsen oder Spiegeln, die Abbildungsfehler eines Fernrohrobjektivs vermindert oder Abbildungsfehler durch die atmosphärische Dispersion (chromatische Aberration) beseitigt. Es gibt verschiedene… …   Deutsch Wikipedia

• Piston (optics) — In optics, the term piston is the mean value of a wavefront or phase profile across the pupil of an optical system. The piston coefficient is typically expressed in wavelengths of light at a particular wavelength. Its main use is in curve fitting …   Wikipedia

• Tilt (optics) — In optics, the term tilt is a deviation in the direction a beam of light propagates. Tilt quantizes the average slope in both the X and Y directions of a wavefront or phase profile across the pupil of an optical system. In conjunction with Piston …   Wikipedia

• Strehl ratio — The modern definition of the Strehl ratio is the ratio of the observed peak intensity at the detection plane of a telescope or other imaging system from a point source compared to the theoretical maximum peak intensity of a perfect imaging system …   Wikipedia

• Dmitry Dmitrievich Maksutov — Dmitri Dmitrievich Maksutov Dmitry Dmitrievich Maksutov (Russian: Дмитрий Дмитриевич Максутов) (23 April [O.S. 11 April] 1896 12 August 1964) was a Russian / Soviet optical engineer and amateur astronomer. He is best know …   Wikipedia

• Coherent diffraction imaging — A diffraction pattern of a gold nanocrystal formed from using a nano area beam of coherent X rays. This reciprocal space diffraction image was taken by Ian Robinson s Group to be used in the reconstruction of a real space coherent x ray… …   Wikipedia