Download the app
educalingo
Search

Meaning of "exit pupil" in the English dictionary

Dictionary
DICTIONARY
section

PRONUNCIATION OF EXIT PUPIL

exit pupil play
facebooktwitterpinterestwhatsapp

GRAMMATICAL CATEGORY OF EXIT PUPIL

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Exit pupil is a noun.
A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.

WHAT DOES EXIT PUPIL MEAN IN ENGLISH?

exit pupil

Exit pupil

In optics, the exit pupil is a virtual aperture in an optical system. Only rays which pass through this virtual aperture can exit the system. The exit pupil is the image of the aperture stop in the optics that follow it. In a telescope or compound microscope, this image is the image of the objective element as produced by the eyepiece. The size and shape of this disc is crucial to the instrument's performance, because the observer's eye can see light only if it passes through this tiny aperture. The term exit pupil is also sometimes used to refer to the diameter of the virtual aperture. Older literature on optics sometimes refers to the exit pupil as the Ramsden disc, named after English instrument-maker Jesse Ramsden.

Definition of exit pupil in the English dictionary

The definition of exit pupil in the dictionary is the smallest cross section of the beam of light from the eyepiece of a telescope through which all the light from the eyepiece passes. Its diameter is equal to the ratio of the focal length of the eyepiece to the focal ratio of the telescope.

WORDS THAT BEGIN LIKE EXIT PUPIL

existence
existent
existential
existential quantifier
existentialism
existentialist
existentially
existing
exit
exit interview
exit permit
exit poll
exit ramp
exit route
exit sign
exit strategy
exit visa
exit wound
exitance
exitless

WORDS THAT END LIKE EXIT PUPIL

April
brasil
brazil
civil
council
day pupil
detail
devil
e-mail
evil
fail
former pupil
huipil
il
langspil
neuropil
out-pupil
pupil
sixth-form pupil
snowy mespil

Synonyms and antonyms of exit pupil in the English dictionary of synonyms

SYNONYMS

Translation of «exit pupil» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF EXIT PUPIL

Find out the translation of exit pupil to 25 languages with our English multilingual translator.
The translations of exit pupil from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «exit pupil» in English.

Translator English - Chinese

出瞳
1,325 millions of speakers

Translator English - Spanish

pupila de salida
570 millions of speakers

English

exit pupil
510 millions of speakers

Translator English - Hindi

बाहर निकलने के छात्र
380 millions of speakers
ar

Translator English - Arabic

خروج التلميذ
280 millions of speakers

Translator English - Russian

выходной зрачок
278 millions of speakers

Translator English - Portuguese

pupila de saída
270 millions of speakers

Translator English - Bengali

প্রস্থান ছাত্র
260 millions of speakers

Translator English - French

pupille de sortie
220 millions of speakers

Translator English - Malay

Keluar murid
190 millions of speakers

Translator English - German

Austrittspupille
180 millions of speakers

Translator English - Japanese

射出瞳
130 millions of speakers

Translator English - Korean

사출 동공
85 millions of speakers

Translator English - Javanese

Metu murid
85 millions of speakers
vi

Translator English - Vietnamese

thoát học sinh
80 millions of speakers

Translator English - Tamil

வெளியேறும் மாணவர்
75 millions of speakers

Translator English - Marathi

बाहेर पडा विद्यार्थी
75 millions of speakers

Translator English - Turkish

Öğrenciden ayrılmak
70 millions of speakers

Translator English - Italian

pupilla di uscita
65 millions of speakers

Translator English - Polish

źrenica wyjściowa
50 millions of speakers

Translator English - Ukrainian

вихідний зіницю
40 millions of speakers

Translator English - Romanian

ieșire elev
30 millions of speakers
el

Translator English - Greek

κόρης εξόδου
15 millions of speakers
af

Translator English - Afrikaans

afrit leerling
14 millions of speakers
sv

Translator English - Swedish

utgångspupill
10 millions of speakers
no

Translator English - Norwegian

utgangspupill
5 millions of speakers

Trends of use of exit pupil

TRENDS

TENDENCIES OF USE OF THE TERM «EXIT PUPIL»

The term «exit pupil» is normally little used and occupies the 113.749 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Little used
47
/100
The map shown above gives the frequency of use of the term «exit pupil» in the different countries.
Principal search tendencies and common uses of exit pupil
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «exit pupil».

FREQUENCY OF USE OF THE TERM «EXIT PUPIL» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «exit pupil» during the past 500 years. Its implementation is based on analysing how often the term «exit pupil» appears in digitalised printed sources in English between the year 1500 and the present day.

Examples of use in the English literature, quotes and news about exit pupil

EXAMPLES

10 ENGLISH BOOKS RELATING TO «EXIT PUPIL»

Discover the use of exit pupil in the following bibliographical selection. Books relating to exit pupil and brief extracts from same to provide context of its use in English literature.
1
Astronomy Hacks
If the exit pupil of the instrument is larger than your entrance pupil, you waste light . V. To calculate the exit pupil of a binocular, divide the objective size by the magnification. For example, a 7X50 binocular delivers an exit pupil of 50/7=7. lmm, ...
Robert Bruce Thompson, Barbara Fritchman Thompson, 2005
2
Helmet Mounted Displays: Design Issues for Rotary-wing Aircraft
Exit Pupil The exit pupil (or Ramsden disk) of an (pupil forming) HMD is the area in space where all the light rays pass; however, it often is pictured as a two- dimensional hole. To obtain the full FOV, the viewing eye must be located at ( within) ...
Clarence E. Rash, 1999
3
Fluorescence Microscopy
Magnification low enough to show the full field of view covered by the objective. 4 . Exit pupil diameter not greater than the diameter of the pupil of the observer's eye, otherwise light is lost and the aperture of the system becomes limited by the  ...
F. W. D. Rost, 1992
4
Galaxies and How to Observe Them
... will be brought together now. Let's start with the concepts of entrance and exit pupil, needed to understand how bright extended objects,like galaxies,appear. Considering the sky background brightness,we are led to the quantity “contrast.
Wolfgang Steinicke, Richard Jakiel, 2007
5
Introduction to Geometrical Optics
... the aperture stop of the system. The exit pupil or Ramsden circle is a real inverted image of the aperture stop and has a diameter D, . The similar triangles in Figure 15. 2a show that f/f, = D,/D',, therefore, angular magnification is also given by ...
Milton Katz, 2002
6
Care of Astronomical Telescopes and Accessories: A Manual ...
The size ofthe exit pupil ofthe system, sometimes called the Ramsden disc or “ eye ring,” is the measure ofthe smallest diameter ofthe pencil oflight emitted through the eyepiece at focus. The exit pupil decreases in size when shorter eyepieces ...
M. Barlow Pepin, 2006
7
Star Ware: The Amateur Astronomer's Guide to Choosing, ...
In my experience, the exit pupil is what really tells the tale of how well a pair of binoculars will show the night sky, not the twilight factor. Of course, we must also take into account a wide range of other mitigating factors, such as lens and prism  ...
Philip S. Harrington, 2011
8
The Eye and Visual Optical Instruments
M = diameter of entrance pupil (objective) (17.16) diameter of exit pupil These equations provide a very useful means for measuring the angular magnification of telescopes, indirectly from the diameters of the entrance and exit pupils.
George Smith, 1997
9
Astronomy with a Home Computer
This is the exit pupil, calculated using this formula: Eyepiece focal length Exit Pupil = Telescope focal ratio The exit pupil is the size ofthe image formed by the eyepiece: the longer the focal length, the bigger the exit pupil. Generally speaking ...
Neale Monks, 2006
10
Optical Imaging and Aberrations: Ray geometrical optics
Similarly, the light cone that exits from the system and converges onto the image point is limited by the exit pupil. Certain special rays, such as the chief and marginal rays, are defined. Vignetting or blocking of the rays from an off-axis point ...
Virendra N. Mahajan, 1998

10 NEWS ITEMS WHICH INCLUDE THE TERM «EXIT PUPIL»

Find out what the national and international press are talking about and how the term exit pupil is used in the context of the following news items.
1
Celestron LandScout 10-30x50mm Angled Spotting Scope
Exit Pupil (mm) 5-1.7mm mm (0.2 in) Prism Glass (Sort) BK7 Apparent Field of View 3.2-1.7 ¡ Linear Field of View (@1000 yds) 168-89ft / 56-29m Optical ... «Wildlife News, Jun 15»
2
Steiner Optics: German Innovation on the Rise
... magnification combined with 56 mm objective lenses for an 8 mm exit pupil, providing maximum light transmission to the dilated human pupil. «American Rifleman, Jun 15»
3
Bud's beloved binoculars are missing
They have a field of view of 410' at 1000 yards, a 17mm eye relief with a 5.25mm exit pupil, and weigh 27.2 ounces. Of course, the H2O means ... «Central Kentucky News, May 15»
4
Focus-Tunable Lenses Enable 3-D Microscopy
Ideally the ETL/OL combination is placed at such a pupil position as well, but using the exit pupil of standard eye- pieces is not normally beneficial: The high ... «Photonics.com, Apr 15»
5
Olympus 8 x 40 DPSI Binocular review
With an exit pupil of 5 these binoculars are reasonabley good for early morning and evening conditions when the light starts to fail - which of ... «Wildlife News, Feb 15»
6
New Line-Up Of Pentax Sport Optics
BaK4 prisms - Highly acclaimed for its perfectly round exit pupil and unvignetted image; Phase Correction - A phase-correction coating is ... «ePHOTOzine, Jan 15»
7
Canon's dual-pixel AF sensor has two photosites per pixel, allowing …
Phase-detect autofocus, the type used in DSLR cameras, works on a different principle – that rays from different parts of the lens's exit pupil ... «What Digital Camera, Jan 15»
8
Old Age + Low Light + Good Optics = Prime Time Afield
The larger the exit pupil of an optic is, the more light it can produce to the eye. Applying a simple formula, based on a given optic, indicates the ... «AmmoLand.com, Dec 14»
9
Celestron 7x50 Cometron Binoculars Review: 2014 Edition
Porro prisms cast from BK7 glass – rather than the more expensive BAK4 glass – give the Cometron 7x50s a slightly angular exit pupil. But the ... «Space.com, Nov 14»
10
Orion 20x80 Astronomy Binoculars Review: 2014 Edition
4-mm (0.16 inches) Exit Pupil: Bigger is better — ideally, larger than the diameter of your dark-adapted eye's pupil (varies with age). «Space.com, Nov 14»

REFERENCE
« EDUCALINGO. Exit pupil [online]. Available <https://educalingo.com/en/dic-en/exit-pupil>. Apr 2024 ».
Download the educalingo app
en
English dictionary
Discover all that is hidden in the words on
index
a b c d e f g h i j k l m n o p q r s t u v w x y z