Aperture stop definition

Aperture stop means an opening serving to limit the size and to define the shape of the area over which radiation is measured.
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Aperture stop means an open­ ing serving to limit the size and to define the shape of the area over which radia­ tion is measured.
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Examples of Aperture stop in a sentence

  • Aperture stop : It limits the amount of light reaching the image (The rim of a lens) Field stop : It limits the size of the image(The edge of a film)It determines the angular extent of the object, Field of View.

  • Aperture stop is conjugated with light source, whereas the field stop is conjugate with the specimen.

  • In particular, their travel times are equal and therefore they all add up in phase when they arrive 3 See also https://en.wikipedia.org/wiki/Conic_section 2.6. BEYOND GAUSSIAN GEOMETRICAL OPTICS 65 Figure 2.22: Aperture stop (A.S.) between the second and third lens, with entrance pupil and exit pupil (in this case these pupils are virtual images of the aperture stop).

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