Definitions for iris diaphragm
This page provides all possible meanings and translations of the word iris diaphragm
Random House Webster's College Dictionary
(v.i.)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.
Category: Optics, Photography
Origin of iris diaphragm:
iris, iris diaphragm(noun)
diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
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"iris diaphragm." Definitions.net. STANDS4 LLC, 2013. Web. 6 Dec. 2013. <http://www.definitions.net/definition/iris diaphragm>.