Iris diaphragm device
AssigneeLeica Microsystems Wetzlar GmbH
InventorsStefan Bamberger, Albrecht Weiss
Life of this patent
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Abstract
An iris diaphragm device for a microscope includes an iris diaphragm having a stationary mount ring, a rotatable adjusting ring, and a plurality of blades. The plurality of blades form a diaphragm opening, which is steplessly adjustable, by rotation of the adjusting ring, between a maximum and a minimum opening size. A coupling linkage is connected to the adjusting ring and includes two levers. An actuation element drives the coupling linkage. A closure element is arranged on one of the levers in a way such that after a predefined size of the diaphragm opening has been established, a further actuation of the actuation element causes the closure element to pivot and cover the diaphragm opening.
Claims9
An iris diaphragm device for a microscope comprising:
- an iris diaphragm including a stationary mount ring, a rotatable adjusting ring, and a plurality of blades, the plurality of blades forming a diaphragm opening, the diaphragm opening being steplessly adjustable between a maximum size and a minimum size of the diaphragm opening by rotation of the adjusting ring;
- a coupling linkage connected to the adjusting ring and including at least a first and a second lever;
- an actuation element configured to drive the coupling linkage;
- and
- a closure element disposed on one of the first and second levers so that after a predefined size of the diaphragm opening has been established, upon a further actuation of the actuation element, the closure element pivots so as to cover the diaphragm opening.
Dependencies are inferred from the claim text.