nurgaava

substantive

Terminological databases

ID 713399 Last modified 30.12.2004

Domain land transportoptics

nurgaava

angular aperture

nurgaava

angular aperture

Usage examples

Measurement methods ... 1.2. Should the results of measurements be challenged, measurements shall be carried out in such a way as to meet the following requirements: 1.2.1. the distance of measurement shall be such that the law of the inverse of the square of the distance is applicable; 1.2.2. the measuring equipment shall be such that the angular aperture of the receiver viewed from the reference centre of the lamp is between 10' and 1 C.

ID 1142939 Last modified 27.01.2026

Domain Standardisation - Metrologymeasuring instruments

nurkava preferred

nurgaava variant

angular aperture

optilisse süsteemi siseneva valguskoonuse suurim nurk, mis kompab mõõdetavat pinnapunkti

maximum angle of the cone of light entering an optical system emerging from a point on the surface being measured

nurkava preferred

Usage examples

nurgaava variant

angular aperture

Usage examples

The angular aperture of a lens is the value of the angle of the lens opening as viewed from the focal point.

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