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Optical Instrument Iris Diaphragm

6650219074888 219074888 404-016.001-095 C04-16.01-95

An adjustable item of thin, overlapping opaque plates which are actuated by a ring or other device so as to change the diameter of a central opening, for controlling the intensity of transmitted illumination. It is usually employed to regulate the aperture of a lens in microscopes, and other optical instruments. View more Optical Instrument Iris Diaphragm