iris diaphragm

- 3 dictionary results

iris diaphragm

–noun Optics, Photography.

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.

Also called iris.

Origin:
1885–90

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To iris diaphragm

Optical Iris Diaphragm
Smooth, Continuous Aperture Control Over Wide Range with Iris Diaphragm

www.Newport.com/Iris-Diaphragms

Iris Diaphragm-Thorlabs
Apertures and Iris diaphragms 10,000 Photonics Products in Stock

www.Thorlabs.com

iris diaphragm
n. A circular device with a variable diameter, commonly used on cameras to regulate the amount of light admitted to a lens.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: iris diaphragm
Function: noun
: an adjustable diaphragm of thin opaque plates that can be turned by a ring so as to change the diameter of a central openingusually to regulate the aperture of a lens (as in a microscope)

Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Search another word or see iris diaphragm on Thesaurus | Reference

Irisblenden
Sahm Feinwerktechnik GmbH Wetzlar - Deutschland

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Diaphragms
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