aperture

Εννοια (Αγγλικός)

A small or narrow opening, gap, slit, or hole.
A hole which restricts the diameter of the lightpath through one plane in an optical system.
A hole which restricts the diameter of the lightpath through one plane in an optical system.
The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.
The maximum angle between the two generatrices.

opening

hole

left open

air-hole

small hole

vacant space

thumbhole

crack

iris diaphragm

Newton’s ring

light rings

gaping place

apertura

caliber

Συχνότητα

Προφέρεται ως (IPA)

/ˈap.ə.t͡ʃə/

From late Middle English, from Latin apertūra (“an opening”), from aperiō (“to uncover, make or lay bare”) + -tūra (“-ure”, action noun suffix). Doublet of overture.

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