aperture ratio
Look at other dictionaries:
aperture ratio — santykinė apertūra statusas T sritis fizika atitikmenys: angl. aperture ratio; relative aperture vok. Öffnungsverhältnis, n; relative Apertur, f rus. относительная апертура, f pranc. ouverture relative, f … Fizikos terminų žodynas
aperture ratio — noun : relative aperture * * * Optics. See relative aperture. [1885 90] … Useful english dictionary
Aperture ratio — Апертура … Краткий толковый словарь по полиграфии
Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens … Wikipedia
Aperture-to-medium coupling loss — In telecommunication, aperture to medium coupling loss is the difference between the theoretical gain of a very large antenna, such as the antennas in beyond the horizon microwave links, and the gain that can be realized in practice. Note 1:… … Wikipedia
relative aperture — santykinė apertūra statusas T sritis fizika atitikmenys: angl. aperture ratio; relative aperture vok. Öffnungsverhältnis, n; relative Apertur, f rus. относительная апертура, f pranc. ouverture relative, f … Fizikos terminų žodynas
Numerical aperture — The numerical aperture with respect to a point P depends on the half angle θ of the maximum cone of light that can enter or exit the lens. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes… … Wikipedia
Aspect ratio (image) — For other uses, see Aspect ratio (disambiguation). For computer screen topics, see display aspect ratio. For screen rotation and portrait mode, see page orientation. 4:3 redirects here. For the 4/3 digital camera/lens standard, see Four Thirds… … Wikipedia
relative aperture — Optics. the ratio of the diameter of a lens, esp. a camera lens, to the focal length; the reciprocal of the f number or focal ratio of the lens. * * * ▪ optics the measure of the light gathering power of an optical system. It is expressed… … Universalium
relative aperture — noun : a measure of the angle of the cone of light rays from an object that traverse an optical system; specifically : the effective aperture of a camera lens expressed as a fraction of its focal length with the symbol f being used instead of 1… … Useful english dictionary
