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aperture ['æpəʧə] n
agric.	díra; štěrbina; skulina; škvíra
astr.	otvor; apertura
struct.	dlab; důlek; vybrání; dutina; lůžko; hnízdo (v betonu); kapsa (ve zdivu)
aperture ['æpəʧə] adj.
sciences., électr.	plocha apertury; plocha apertury kolektoru
Anglais glossaire
aperture ['æpəʧə] abbr.
abrév., pétr.	ap; aper
ciném.	A measure of the width of the opening allowing light to enter a camera. The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background is called the "effect aperture". The ratio of focal length of a lens to its "effective aperture" for an object located at infinity is called the "relative aperture", or "f/number". Larger apertures allow more light to enter a camera, hence darker scenes can be recorded. Conversely, smaller apertures allow less light to enter, but have the advantage of creating a large depth of field. See also shutter speed.

aperture : 25 phrases, 4 sujets

Astronomie	6
Botanique	2
Construction	11
Sciences naturelles	6