Patent ID: 11921417
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. The controllable aperture stop of claim 1, wherein the plurality of movable blades consist of a first blade assembly and a second blade assembly, the first blade assembly comprises some of the plurality of movable blades, and the second blade assembly comprises others of the plurality of movable blades;
wherein in the direction parallel to the central axis, the plurality of movable blades of the first blade assembly do not overlap with one another, the plurality of movable blades of the second blade assembly do not overlap with one another, and the first blade assembly and the second blade assembly at least partially overlap with each other; and
wherein in a direction around the light pass aperture, the plurality of movable blades of the first blade assembly at least partially overlap with one another, the plurality of movable blades of the second blade assembly at least partially overlap with one another, and the first blade assembly and the second blade assembly do not overlap with each other.