Meaning Of The Word Iris diaphragm

Real Dictionary

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Iris diaphragm Meaning

Iris diaphragm Definition
Iris diaphragm Definition

What's The Definition Of Iris diaphragm?

iris diaphragm in American English
a device consisting of thin, overlapping metal blades that can be adjusted to form an aperture of varying size for camera lenses, etc.
noun: a composite diaphragm with a central aperture readily adjustable for size, used to regulate the amount of light admitted to a lens or optical system

iris diaphragm in British English
noun: 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

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