英语词汇“entrance pupil”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

> as lemmas

entrance pupil

entrance pupil n. the aperture through which light enters an optical system; the image of the aperture stop as viewed from the front of the lens system.Cf. exit pupil n. at exit n. Compounds 2.

ΚΠ

1888 R. S. Heath Elem. Treat. Geom. Optics viii. 152 The field of view is therefore bounded by the cone of rays proceeding from the centre of the entrance-pupil and filling the object-glass.

1933 Amer. Jrnl. Psychol. 45 332 When an artificial pupil is employed, it and not the natural pupil should, of course, be treated as the entrance pupil.

2018 F. L. Pedrotti et al. Introd. Optics (ed. 3) iii. 59 Only nearly paraxial rays get through the entrance pupil.

extracted from entrancen.

as lemmas

单词	entrance pupil
释义	> as lemmas entrance pupil entrance pupil n. the aperture through which light enters an optical system; the image of the aperture stop as viewed from the front of the lens system.Cf. exit pupil n. at exit n. Compounds 2. ΚΠ 1888 R. S. Heath Elem. Treat. Geom. Optics viii. 152 The field of view is therefore bounded by the cone of rays proceeding from the centre of the entrance-pupil and filling the object-glass. 1933 Amer. Jrnl. Psychol. 45 332 When an artificial pupil is employed, it and not the natural pupil should, of course, be treated as the entrance pupil. 2018 F. L. Pedrotti et al. Introd. Optics (ed. 3) iii. 59 Only nearly paraxial rays get through the entrance pupil. extracted from entrancen. < as lemmas
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