circular aperture

См. также в других словарях:

• diffraction by a circular aperture — difrakcija per apskritą angą statusas T sritis fizika atitikmenys: angl. diffraction by a circular aperture vok. Beugung an kreisförmiger Öffnung, f rus. дифракция на круглом отверстии, f pranc. diffraction par une fente circulaire, f;… …   Fizikos terminų žodynas

• Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …   Wikipedia

• aperture — apertural /ap euhr choor euhl/, adj. apertured, adj. /ap euhr cheuhr/, n. 1. an opening, as a hole, slit, crack, gap, etc. 2. Also called aperture stop. Optics. an opening, usually circular, that limits the quantity of light that can enter an… …   Universalium

• aperture —    An opening. In photography, the circular hole in the front of the camera lens which controls the amount of light allowed to pass on to the film from the lens. On all but very inexpensive cameras the size of the aperture is variable. The degree …   Glossary of Art Terms

• aperture — ap·er·ture || æpə‚tjÊŠÉ™ n. opening; circular hole that controls the amount of light entering a camera …   English contemporary dictionary

• aperture — ap•er•ture [[t]ˈæp ər tʃər[/t]] n. 1) an opening, as a hole, slit, or gap 2) opt Also called ap′erture stop . an opening, usu. circular, that limits the quantity of light that can enter an optical instrument, as the lens of a camera • Etymology:… …   From formal English to slang

• Airy disk — Computer generated image of an Airy disk. The gray scale intensities have been adjusted to enhance the brightness of the outer rings of the Airy pattern …   Wikipedia

• Diffraction — Computer generated intensity pattern formed on a screen by diffraction from a square aperture …   Wikipedia

• light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …   Universalium

• Fourier optics — is the study of classical optics using techniques involving Fourier transforms and can be seen as an extension of the Huygens Fresnel principle. The underlying theorem that light waves can be described as made up of sinusoidal waves, in a manner… …   Wikipedia

• Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …   Wikipedia