Explore: Number Pupils

vertical slit pupils, goats and sheep have horizontally oriented pupils, and some catfish have annular types. In optical terms, the anatomical pupil is the eye's

article number as page number (link) Kuwamizu, Ryuta; Yamazaki, Yudai; Aoike, Naoki; Ochi, Genta; Suwabe, Kazuya; Soya, Hideaki (2022-09-24). "Pupil-linked

and for many conventional photographic lenses, the pupils appear the same size and so the pupil magnification is approximately 1. Magnification Photo

Argyll Robertson pupils (AR pupils) are bilateral small pupils that reduce in size on a near object (i.e., they accommodate), but do not constrict when

exit pupil. For a telescope, the diameter of the exit pupil can be calculated by dividing the focal length of the eyepiece by the focal ratio (f-number) of

and write can be challenging in English. It can take longer for school pupils to become independently fluent readers of English than of many other languages

disadvantaged pupils for support. The think tank Demos published an analysis in January 2015. They claim that, since 2011, for free school meals-eligible pupils, whose

series Educating Essex. It follows the everyday lives of the staff and pupils of Thornhill Community Academy, a secondary school in Dewsbury, West Yorkshire

therefore different entrance pupils. Exit pupil Transmittance Pupil magnification Hecht, Eugene (2017). "5.3.2 Entrance and Exit Pupils". Optics (5th ed.). Pearson

the system's focal length to the diameter of the entrance pupil ("clear aperture"). The f-number is also known as the focal ratio, f-ratio, or f-stop, and