iris diaphragm

Εννοια (Αγγλικός)

An adjustable diaphragm by which the diameter of an approximately circular opening may be controlled, as for regulating the aperture of a lens; it consists of a number of movable thin curved plates fastened at regular intervals around the inside of a ring, the positions of which are simultaneously adjusted by a single knob on the outside of the lens. It is used in cameras and microscopes.

Συνώνυμα

iris

diaphragm

capsule

aperture

membrane

Newton’s ring

light rings

Μεταφράσεις

iris

diaframma ad iride

diaframma a iride

Ετυμολογία (Αγγλικός)

Its action is reminiscent of the iris of the eye.