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Meaning of "iris diaphragm" in the English dictionary

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DICTIONARY
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PRONUNCIATION OF IRIS DIAPHRAGM

iris diaphragm play
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GRAMMATICAL CATEGORY OF IRIS DIAPHRAGM

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Iris diaphragm 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 IRIS DIAPHRAGM MEAN IN ENGLISH?

iris diaphragm

Diaphragm (optics)

In optics, a diaphragm is a thin opaque structure with an opening at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture. Thus it is also called a stop. The diaphragm is placed in the light path of a lens or objective, and the size of the aperture regulates the amount of light that passes through the lens. The centre of the diaphragm's aperture coincides with the optical axis of the lens system. Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. See the articles on aperture and f-number for the photographic effect and system of quantification of varying the opening in the diaphragm.

Definition of iris diaphragm in the English dictionary

The definition of iris diaphragm in the dictionary is an adjustable diaphragm that regulates the amount of light entering an optical instrument, esp a camera. It usually consists of a number of thin metal leaves arranged so that they open out into an approximately circular aperture Sometimes shortened to: iris.

WORDS THAT BEGIN LIKE IRIS DIAPHRAGM

iridescently
iridial
iridian
iridic
iridisation
iridise
iridium
iridization
iridize
iridocyte
iridologist
iridology
iridosmine
iridosmium
iridotomies
iridotomy
iris
irisate
irisation
iriscope

WORDS THAT END LIKE IRIS DIAPHRAGM

apophthegm
apothegm
diaphragm
epiphragm
gm
new paradigm
paradigm
phlegm
syntagm

Synonyms and antonyms of iris diaphragm in the English dictionary of synonyms

SYNONYMS

Translation of «iris diaphragm» into 25 languages

TRANSLATOR
online translator

TRANSLATION OF IRIS DIAPHRAGM

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

Translator English - Chinese

光圈
1,325 millions of speakers

Translator English - Spanish

diafragma iris
570 millions of speakers

English

iris diaphragm
510 millions of speakers

Translator English - Hindi

परितारिका डायाफ्राम
380 millions of speakers
ar

Translator English - Arabic

قزحية الحجاب الحاجز
280 millions of speakers

Translator English - Russian

ирисовая диафрагма
278 millions of speakers

Translator English - Portuguese

diafragma de íris
270 millions of speakers

Translator English - Bengali

আইরিশ ডায়াফ্র্যাম
260 millions of speakers

Translator English - French

diaphragme à iris
220 millions of speakers

Translator English - Malay

Diafragma iris
190 millions of speakers

Translator English - German

Irisblende
180 millions of speakers

Translator English - Japanese

虹彩絞り
130 millions of speakers

Translator English - Korean

홍채 조리개
85 millions of speakers

Translator English - Javanese

Iris diaphragm
85 millions of speakers
vi

Translator English - Vietnamese

mống mắt hoành
80 millions of speakers

Translator English - Tamil

கருவிழியின் உதடு
75 millions of speakers

Translator English - Marathi

आयरीस डायाफ्राम
75 millions of speakers

Translator English - Turkish

Iris diyaframı
70 millions of speakers

Translator English - Italian

diaframma a iride
65 millions of speakers

Translator English - Polish

Irysowa
50 millions of speakers

Translator English - Ukrainian

ірисова діафрагма
40 millions of speakers

Translator English - Romanian

diafragmă iris
30 millions of speakers
el

Translator English - Greek

διάφραγμα ίριδας
15 millions of speakers
af

Translator English - Afrikaans

Iris diafragma
14 millions of speakers
sv

Translator English - Swedish

irisbländare
10 millions of speakers
no

Translator English - Norwegian

irisblender
5 millions of speakers

Trends of use of iris diaphragm

TRENDS

TENDENCIES OF USE OF THE TERM «IRIS DIAPHRAGM»

The term «iris diaphragm» is normally little used and occupies the 116.024 position in our list of most widely used terms in the English dictionary.
0
100%
FREQUENCY
Little used
46
/100
The map shown above gives the frequency of use of the term «iris diaphragm» in the different countries.
Principal search tendencies and common uses of iris diaphragm
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «iris diaphragm».

FREQUENCY OF USE OF THE TERM «IRIS DIAPHRAGM» OVER TIME

The graph expresses the annual evolution of the frequency of use of the word «iris diaphragm» during the past 500 years. Its implementation is based on analysing how often the term «iris diaphragm» 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 iris diaphragm

EXAMPLES

10 ENGLISH BOOKS RELATING TO «IRIS DIAPHRAGM»

Discover the use of iris diaphragm in the following bibliographical selection. Books relating to iris diaphragm and brief extracts from same to provide context of its use in English literature.
1
Theory and Practice of Histological Techniques
... routine procedure for every microscopist. All condensers have an aperture diaphragm with which the diameter of the light beam can be controlled. Adjustment of this iris diaphragm will alter the size and volume of the cone of light focused on ...
John D. Bancroft, Marilyn Gamble, 2008
2
Ocular Trauma: Principles and Practice
FIGURE 1 8-6 (A) Iris diaphragm, open type. The diaphragm imitates the natural iris by a central "pupil" complemented by an inferior indentation functioning as an Ando iridectomy. The implant is made of transparent, unstained PMMA.
Ferenc Kuhn, Dante J. Pieramici, 2011
3
A History of the Photographic Lens
The commonest means for aperture control is the familiar iris diaphragm. It is not known who invented this extremely ingenious mechanism, but it was apparently known early in the last century. The mechanism consists of a set of identical ...
Rudolf Kingslake, 1989
4
Ocular Traumatology
This book explains and answers not simply the “when”, the “what”, and the “how”, but also the “why” questions. The information is based on epidemiologic and clinical data from evaluation to management.
‎2008
5
Video Microscopy: The Fundamentals
Make sure that you see the image of the field diaphragm and not that of the condenser iris diaphragm. To ensure this, place a pencil or other slender object in front of the field diaphragm on the illuminator: a dark image of that object should ...
Shinya Inoué, Kenneth R. Spring, 1997
6
Photography with a Microscope
Light from the lamp is collected by a collector lens in the lamphouse and focused through a field iris diaphragm into the condenser, which focuses the light onto the specimen; the light passes through the specimen and enters the objective.
Fred Rost, Ron Oldfield, 2000
7
An Introduction to Practical Biotechnology
(b) Adjust the amount of light coming through the condenser using the iris diaphragm lever located under the stage in the front of the microscope. Light adjustment using the iris diaphragm lever is critical to obtaining proper contrast. For oil ...
S. Harisha, 2005
8
Handbook of Valves and Actuators: Valves Manual International
Avalve unique to dry solids handling is the iris valve or iris diaphragm valve. Afabric iris can be adjusted from closed, to any intermediate bore size, to wide open. When wide open the valve bore is formed by a fabric tube, see Figure 3.88.
Brian Nesbitt, 2011
9
Ophthalmology
Forward displacement of the lens-iris diaphragm, direct invasion of the aqueous outflow system by melanin- laden macrophages, and pigmentary dispersion have been reported to cause glaucoma in these cases.75 Shields et a/.73 ...
Myron Yanoff, Jay S. Duker, James J. Augsburger, 2009
10
How Movies Work
Film Shutter . Iris diaphragm As an integrated, finished product, the motion picture is familiar to us as something capable of being projected: a series of images and sound information, synchronized on a ribbon of celluloid. From the perspective ...
Bruce F. Kawin, 1987

10 NEWS ITEMS WHICH INCLUDE THE TERM «IRIS DIAPHRAGM»

Find out what the national and international press are talking about and how the term iris diaphragm is used in the context of the following news items.
1
Sugma Reveals UK/US Pricing for 24-35mm F2 DG HSM Art Lens …
Featuring a constant maximum aperture of f/2, the Sigma 24-35mm f/2 DG HSM Art lens has 18 elements in 13 groups and an iris diaphragm ... «PhotographyBLOG, Jul 15»
2
Legendary Trioplan f2.8/100 Returns via Kickstarter
The updated Trioplan is manufactured using high-end coated glass made by Schott, features an iris diaphragm of 15 steel blades for a ... «PhotographyBLOG, Jun 15»
3
Fujifilm XF 16mm F1.4 R WR
Other highlights include an iris diaphragm with nine rounded blades, an optical formula that comprises 13 lens elements in 11 groups, ... «PhotographyBLOG, Jun 15»
4
Tokina USA Announce Pricing for AT-X 24-70mm F/2.8 PRO FX Lens
... featuring 15 lens elements in 11 groups and a nine-bladed iris diaphragm. The lens has a maximum reproduction ratio of 1:4.73, a minimum ... «PhotographyBLOG, Jun 15»
5
Sigma 24-35mm f/2 DG HSM Art
The Sigma 24-35mm f/2 DG HSM Art lens has 18 elements in 13 groups and an iris diaphragm with 9 rounded blades. The lens incorporates ... «PhotographyBLOG, Jun 15»
6
Ricoh unveils Ricoh GR II large-sensor compact
With its nine-blade iris diaphragm, the lens creates a truthful sense of depth and a natural bokeh (defocusing) effect, while allowing users to ... «Amateur Photographer, Jun 15»
7
Nikon AF-S DX NIKKOR 55-200mm f/4-5.6G ED VR II Review
... the retractable Nikon 55-200mm VR lens features a built-in auto-focus motor, 4-stop Vibration Reduction system, and an iris diaphragm with ... «PhotographyBLOG, May 15»
8
Ayrton Continues to Inspire and Innovate at Prolight + Sound 2015
... defocused on a large adjustment range; an iris diaphragm; a contour erasure filter for smoothing sharp edges; and a four-facet rotating prism. «EtNow.com, Apr 15»
9
Tamron SP 15-30mm F/2.8 Di VC USD
... and an iris diaphragm with nine rounded aperture blades. The Tamron SP 15-30mm F/2.8 Di VC USD lens officially retails for £949 / $1199. «PhotographyBLOG, Apr 15»
10
Yongnuo YN35mm F2
The optical construction features 7 elements in 5 groups and an iris diaphragm witrh 7 rounded blades. The lens takes 52mm filters, and will be ... «PhotographyBLOG, Apr 15»

REFERENCE
« EDUCALINGO. Iris diaphragm [online]. Available <https://educalingo.com/en/dic-en/iris-diaphragm>. Apr 2024 ».
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