Patent ID: 11971625
Assignee: nan
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A diaphragm, comprising:
a diaphragm body; and
diaphragm lugs located on edges of the diaphragm body and each having a diaphragm lug hole, wherein
the diaphragm lug hole comprises a first wall and a second wall opposite to each other,
the first wall comprises a first protrusion, and the second wall comprises a second protrusion,
the first protrusion and the second protrusion are arranged in a staggered manner, and
a difference between a distance of a top portion of one of the first protrusion and the second protrusion from a wall opposite to the one of the first protrusion and the second protrusion, and a height of another one of the first protrusion and the second protrusion is less than or equal to 0;
wherein the difference between the distance of the top portion of one of the first protrusion and the second protrusion from the wall opposite to the one of the first protrusion and the second protrusion, and the height of another one of the first protrusion and the second protrusion is less than or equal to 0 comprises: a distance between a top portion of the first protrusion and a top portion of the second protrusion is 0 mm˜0.2 mm.