Patent ID: 11971601
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An imaging lens assembly, having an optical axis, comprising:
a plurality of optical elements, the optical axis passing through the optical elements; and
an accommodating assembly surrounding the optical axis and containing the optical elements, the accommodating assembly comprising:
a conical-shaped light blocking sheet having an object-side opening, the optical axis passing through the object-side opening, the conical-shaped light blocking sheet comprising:
an out-side portion defining an outer periphery of the conical-shaped light blocking sheet and surrounding the object-side opening; and
a conical portion forming the object-side opening and connected to the out-side portion, wherein the conical portion comprises a conical structure tapered from the out-side portion toward an object-side along the optical axis; and

a lens barrel disposed on an image side of the conical portion, comprising:
an object-side wall having an object-side through hole and facing towards an object side of the imaging lens assembly;
an image-side wall having an image-side through hole and facing towards an image side of the imaging lens assembly;
an inner-side wall surrounding and facing towards the optical axis, the inner-side wall connecting the object-side wall and the image-side wall; and
an outer-side wall farther away from the optical axis than the inner-side wall to the optical axis and connecting the object-side wall and the image-side wall;

wherein the accommodating assembly defines an inner space extending from the image-side through hole of the lens barrel to an end of the conical portion closest to the object side along a direction parallel to the optical axis and surrounded by the inner-side wall;
wherein the optical elements comprise a most object-side optical element and at least two optical elements disposed in the inner space;
wherein the out-side portion is fixed at only one of the lens barrel and the most object-side optical element, and the conical-shaped light blocking sheet is physically contacted with only one of the lens barrel and the most object-side optical element.