English ⇄ Arabic Bulgarian Chinese Chinese simplified Czech Danish Dutch English Esperanto Estonian Finnish French German Greek Hungarian Irish Italian Japanese Latin Latvian Lithuanian Maltese Polish Portuguese Romanian Russian Scottish Gaelic Serbian Latin Slovak Slovene Spanish Swedish Turkish Ukrainian

aperture ['æpəʧə] adj.
commun., el.	tamanho do ponto
med.	abertura; orifício
nat.sc., el.	abertura do coletor ; área de abertura do coletor
transp., mech.eng.	diafragma
English thesaurus
aperture ['æpəʧə] abbr.
abbr., oil	ap; aper
cinema	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 : 160 phrases in 25 subjects

Agriculture	11
Antennas and waveguides	5
Communications	20
Criminal law	1
Cultural studies	2
Earth sciences	10
Electronics	52
Health care	1
Industry	1
Information technology	8
Labor law	1
Law	3
Life sciences	3
Lighting other than cinema	1
Materials science	2
Mechanic engineering	4
Medical	3
Natural sciences	22
Radio	1
Technology	2
Telegraphy	1
Thermal Energy	1
Transport	3
Video recording	1
Work flow	1