Patent ID: 11914217
Assignee: LARGAN PRECISION CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. An imaging lens assembly, which has an optical axis, comprising:
a plastic carrier element comprising:
an object-side surface comprising an object-side opening;
an image-side surface comprising an image-side opening;
an outer surface; and
an inner surface connected to the object-side opening and the image-side opening; and

an imaging lens element set disposed in the plastic carrier element, and comprising at least three lens elements, wherein each of at least two adjacent lens elements of the at least three lens elements comprises a first axial assembling structure, and the first axial assembling structures are corresponding to and connected to each other;
wherein a solid medium interval is maintained between the at least two adjacent lens elements and the inner surface;
wherein the solid medium interval is directly contacted with the at least two adjacent lens elements and the inner surface;
wherein a range of an outer periphery of at least one lens element of the at least three lens elements directly contacted with the solid medium interval is larger than a range of the outer periphery of the at least one lens element of the at least three lens elements non-contacted with the solid medium interval at a plane vertical to the optical axis;
wherein an air gap is further comprised between the at least two adjacent lens elements and the inner surface, and the air gap along a radial direction is closer to the optical axis than the solid medium interval to the optical axis;
wherein at least one lens element of the at least two adjacent lens elements comprises an annular groove structure, and at least one of the solid medium interval and the air gap is interconnected to the annular groove structure;
wherein the solid medium interval is made of a medium material, and the medium material is formed the solid medium interval after solidifying;
wherein a space width of the solid medium interval between the at least two adjacent lens elements and the inner surface is d, and the following condition is satisfied:
0.01 mm≤d<0.18 mm.