ellipsoidal mirror

См. также в других словарях:

• mirror — mirrorlike, adj. /mir euhr/, n. 1. a reflecting surface, originally of polished metal but now usually of glass with a silvery, metallic, or amalgam backing. 2. such a surface set into a frame, attached to a handle, etc., for use in viewing… …   Universalium

• Ellipsoidal reflector spotlight — (abbreviated to ERS, or colloquially ellipsoidal) is the name for a type of stage lighting instrument, named for the ellipsoidal reflector used to intensify the light of a back loading lamp through the barrel and lens. Ellipsoidals may also be… …   Wikipedia

• Ridged mirror — In atomic physics, a ridged mirror (or ridged atomic mirror, or Fresnel diffraction mirror) is a kind of atomic mirror, designed for the specular reflection of neutral particles (atoms) coming at the grazing incidence angle, characterised in the… …   Wikipedia

• Ellipse — Elliptical redirects here. For the exercise machine, see Elliptical trainer. This article is about the geometric figure. For other uses, see Ellipse (disambiguation). Not to be confused with ellipsis. An ellipse obtained as the intersection of a… …   Wikipedia

• Ibn Sahl — This article is about the physicist. For the physician, see Ali ibn Sahl Rabban al Tabari. For the poet, see Ibn Sahl of Sevilla. Ibn Sahl (Abu Sa d al Ala ibn Sahl) (c. 940 1000) was an Arabian mathematician, physicist and optics engineer of the …   Wikipedia

• Stage lighting instrument — Stage lighting instruments are used in stage lighting to illuminate theatrical productions, rock concerts and other performances taking place in live performance venues. They are also used to light television studios and sound stages.Terminology… …   Wikipedia

• Intelligent lighting — A Martin MAC 550 intelligent light Intelligent lighting refers to stage lighting that has automated or mechanical abilities beyond those of traditional, stationary illumination. Although the most advanced intelligent lights can produce… …   Wikipedia

• photoreception — photoreceptive, adj. /foh toh ri sep sheuhn/, n. the physiological perception of light. [1905 10; PHOTO + RECEPTION] * * * Biological responses to stimulation by light, most often referring to the mechanism of vision. In one celled organisms such …   Universalium

• 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

• Atomic de Broglie microscope — Fig.1. Proposal for the Helium microscope by.[1] The atomic de Broglie microscope (also atomic nanoscope, neutral beam microscope, or scanning helium microscope when helium is used as the probing atom) is an imaging system which is expected to… …   Wikipedia

• Timeline of telescope technology — Timeline of telescope technology* c.2560 BC c.860 BC Egyptian artisans polish rock crystal, semi precious stones, and latterly glass to produce facsimile eyes for statuary and mummy cases. The intent appears to be to produce an optical illusion.… …   Wikipedia