angular apertureの例文

例文

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1. The light crossing this point is confined to a cone of angular aperture 2 " ? ".
2. In air, the angular aperture of the lens is approximately twice this value ( within the paraxial approximation ).
3. Perfectly parallel rays ( shown in blue ) would be captured, but sunlight, due to its angular aperture, is partially lost.
4. In a medium with an index of refraction close to 1, such as air, the angular aperture is approximately equal to twice the numerical aperture of the lens.
5. Instead, the angular aperture of a-number, written / or, which is defined as the ratio of the focal length to the diameter of the entrance pupil: